The Lecturio Medical Concept Library

Concise knowledge for medical students and healthcare professionals

Adrenal gland

Adrenal Glands

Anatomy of the ear

Anatomy of the Ear

Essential anatomy of the eye illustration

Anatomy of the Eye

Orientation of the myocardium

Anatomy of the Heart

Arterial supply of the nasal cavity

Anatomy of the Nose

Lateral view of the ankle

Ankle Joint

Layers of anterolateral abdominal wall

Anterior Abdominal Wall

Anterior view of the right arm

Arm

Intricate pathways of the vestibular system

Auditory and Vestibular Pathways

Pathways of the sympathetic nervous system

Autonomic Nervous System

Featured image axilla and brachial plexus

Axilla and Brachial Plexus

Indirect Pathway between Basal Ganglia and the Cerebral Cortex

Basal Ganglia

Division of cranial nerves that arise in brainstem

Brain Stem

Breast anatomy normal scheme

Breasts

Cross section of secondary bronchus

Bronchial Tree

Bifurcation of the carotid artery

Carotid Arterial System

Location of the nuclei within the cerebellum

Cerebellum

Lobes of Cerebral Cortex

Cerebral Cortex

2 sources of blood supply to the brain

Cerebrovascular System

The serratus anterior muscle

Chest Wall

Colon blood supply, anterior view

Colon, Cecum, and Appendix

Cubital Fossa

Diaphragm muscle

Diaphragm

Elbow movement and normal range of motion

Elbow Joint

Layers of the esophageal wall

Esophagus

Subtypes of femoral hernias

Femoral Region and Hernias

2nd most superficial layer of the muscles of the sole of the foot

Foot

Anterior view of the right forearm, featuring the muscles of the deep layer of the anterior compartment

Forearm

Gallbladder

Gallbladder and Biliary Tract

Sagittal view of the brain, brain stem, cerebellum, and proximal spinal cord

General Structure of the Nervous System

gluteal region (maximus and medius faded)

Gluteal Region

The innervation of the hand

Hand

Anterior view of the pelvis and hip joint

Hip Joint

Pathway of testicular descent

Inguinal Canal and Hernias

Branches of the trigeminal nerve

Jaw and Temporomandibular Joint

Location of the kidneys in situ (posterior view)

Kidneys

Motions of the knee

Knee Joint

Components and regions of the larynx

Larynx

Anterior view of the leg

Leg

Primary components of the limbic system

Limbic System

Porta hepatis hepatic portal

Liver

Lobes and fissures of the lungs

Lungs

Lymph transport along lymphatic vessels

Lymphatic Drainage System

Mediastinal compartments

Mediastinum and Great Vessels

Dural venous sinuses

Meninges

Extrinsic back muscles - Superficial muscles Biodigital

Muscles of the Back

Muscles of the mouth (Upper group)

Muscles of the Face

Anterior neck muscles - Superficial layer

Muscles of the Neck

Head anatomy with olfactory nerve

Olfaction

Cross-sectional drawing showing the various muscular layers of the tongue

Oral Cavity: Lips and Tongue

Blood supply and innervation of the palate

Oral Cavity: Palate

Gross anatomy of the female reproductive system

Ovaries

Roots of the cranial nerves

Overview of the Cranial Nerves

Arterial supply of the pancreas

Pancreas

Sinusitis

Paranasal Sinuses

Arterial supply of parathyroid glands

Parathyroid Glands

Anterior view of the pelvis

Pelvis

Cross section of the penis

Penis

Diagram of the peritoneum

Peritoneum and Retroperitoneum

Pharynx arises from the pharyngeal arches

Pharynx

Hypothalamic–pituitary complex

Pituitary Gland

Blood supply of the pleurae

Pleura

Gastrocnemius

Popliteal Fossa

Lumbar triangles

Posterior Abdominal Wall

Prostate and other Male Reproductive Glands

Differences in anal neurovasculature above and below the pectinate line

Rectum and Anal Canal

Histology of the parotid gland

Salivary Glands

Pectoralis minor and subclavius muscles

Shoulder Complex

Posterior view of the skull

Skull

Small intestine

Small Intestine

Dermatomes

Spinal Cord

Location of the spleen, in situ (anterior view)

Spleen

Arterial supply of the stomach

Stomach

Micro parts of a tooth

Teeth

Anatomy of the testis

Testicles

Location of the thalamus in a midsagittal section of the human brain

Thalamus

Orbit extraocular illustration

The Orbit and Extraocular Muscles

Anterior view of the right femur

Thigh

Blood supply of the thyroid

Thyroid Gland

Cross sectional structure Trachea

Trachea

Triangles of the neck

Triangles of the Neck

Development of the kidney and bladder

Urinary Tract

Uterus

Uterus, Cervix, and Fallopian Tubes

Muscular anatomy of the perineum and pelvic floor, external view

Vagina, Vulva, and Pelvic Floor

Circulation

Ventricular System

Cervical vertebrae showing atlas and axis

Vertebral Column

Proximal and distal rows of the carpal bones

Wrist Joint

Acute Stress Disorder

Acute Stress Disorder

Adjustment disorder

Adjustment Disorder

Agoraphobia

Long-term effects of ethanol consumption

Alcohol Use Disorder

Amphetamine Use Disorder

Amphetamine Use Disorder

Anorexia Nervosa

Anorexia Nervosa

ADHD

Attention Deficit Hyperactivity Disorder

Autism spectrum disorder

Autism Spectrum Disorder

Binge Eating Disorder

Binge Eating Disorder

Bipolar Disorder

Bipolar Disorder

Body Dysmorphic Disorder

Body Dysmorphic Disorder

Brief Psychotic Disorder Fallback

Brief Psychotic Disorder

Bulimia Nervosa

Bulimia Nervosa

Cannabis Use Disorder

Cannabis Use Disorder

Circadian sleep-wake disorders

Circadian Rhythm Sleep–Wake Disorder

Cluster A Personality Disorders

Cluster B Personality Disorders

Cluster C Personality Disorders

Cocaine use disorder Fallback Feature

Cocaine Use Disorder

Conduct Disorder

Conduct Disorder

Conversion Disorder

Conversion Disorder

Defense Mechanisms

Delusional Disorder

Delusional Disorder

Depersonalization derealization disorder

Depersonalization/Derealization Disorder

Disruptive mood dysregulation disorder

Disruptive Mood Dysregulation Disorder

Dissociative Amnesia

Dissociative Amnesia

Dissociative Identity Disorder

Dissociative Identity Disorder

Factitious Disorder fallback

Factitious Disorders

Female sexual dysfunction fallback featured image

Female Sexual Dysfunction

Gambling Disorder

Gambling Disorder

Gender Dysphoria

Gender Dysphoria

Generalized Anxiety Disorder

Generalized Anxiety Disorder

Hallucinogen use disorder

Hallucinogen Use Disorder

Illness anxiety disorder

Illness Anxiety Disorder

Inhalant Use Disorder

Inhalant Use Disorder

Insomnia

Insomnia

Intermittent explosive disorder

Intermittent Explosive Disorder

Kleptomania and Pyromania

Kleptomania and Pyromania

Major Depressive Disorder

Major Depressive Disorder

Penis enlargement pump

Male Sexual Dysfunction

Malingering fallback

Malingering

Narcolepsy

Narcolepsy

Nicotine Use Disorder

Nicotine Use Disorder

Obsessive-compulsive disorder

Obsessive-compulsive Disorder (OCD)

Opioid Use Disorder Fallback Feature

Opioid Use Disorder

Oppositional defiant disorder

Oppositional Defiant Disorder

Panic disorder

Panic Disorder

Paraphilic Disorders

Paraphilic Disorders

Parasomnias

Parasomnias

Stages of healthy sleep

Physiology of Sleep

Geophagia

Pica

PTSD brain

Posttraumatic Stress Disorder (PTSD)

Normal physiology of the menstrual cycle

Premenstrual Dysphoric Disorder

Psychiatric Assessment

Psychiatric Assessment

Psychotherapy

Psychotherapy

Restless legs syndrome

Restless Legs Syndrome

Rumination disorder

Rumination Disorder

Schizoaffective disorder

Schizoaffective Disorder

Schizophrenia

Sedatives, Hypnotics, and Anxiolytics Use Disorder

Sedatives, Hypnotics, and Anxiolytics Use Disorder

Tanner staging in boys

Sexual Physiology

Social Anxiety Disorder

Social Anxiety Disorder

Somatic Symptom Disorder

Somatic Symptom Disorder

Specific Phobias

Specific Phobias

Cycle of substance-related and addictive disorders

Substance-Related and Addictive Disorders

Suicide

Suicide

Tics and Tourette Syndrome

Tics and Tourette Syndrome

Trichotillomania lesions on scalp

Trichotillomania

Loop-sheet polymer of AAT molecules

Alpha-1 Antitrypsin (AAT) Deficiency

Isomer structure

Basics of Amino Acids

Diastereoisomers

Basics of Carbohydrates

Enzyme

Basics of Enzymes

Amino acid catabolism

Catabolism of Amino Acids

Cell Cycle

The mevalonate pathway

Cholesterol Metabolism

Citric acid or Krebs cycle

Citric Acid Cycle

Brush border digestion

Digestion and Absorption of Carbohydrates

pathophysiology of methylmalonic acidemia

Disorders of Amino Acid Metabolism

Carnitine transports fatty acids between the cytosol and mitochondrial matrix

Disorders of Fatty Acid Metabolism

Normal metabolism of fructose

Disorders of Fructose Metabolism

Proofreading activity of DNA polymerase

DNA Repair Mechanisms

Simple cell cycle dna

DNA Replication

DNA packaging and the two states of chromatin

DNA Types and Structure

Anatomy of Mitochondrion

Electron Transport Chain (ETC)

Competitive inhibition

Enzyme Inhibition

Reaction progress curve

Enzyme Kinetics

Histone acetylation

Epigenetic Regulation

Excessive ethanol consumption

Ethanol Metabolism

Histological slide from a kidney biopsy Fabry disease

Fabry Disease

Vitamin D types

Fat-soluble Vitamins and their Deficiencies

Delta and Omega Numbering Systems for Fatty Acids

Fatty Acid Metabolism

Comparison between double bond of elaidic acid and double bond of oleic acid

Fatty Acids and Lipids

Role of vitamin B12 and folic acid in DNA synthesis

Folate and Vitamin B12

Galactose (Haworth projection)

Galactosemia

A child with massive hepatosplenomegaly due to Gaucher disease

Gaucher Disease

Location of gluconeogenesis - oxaloacetate being converted into malate

Gluconeogenesis

Glycogen structure

Glycogen Metabolism

Myopathic changes with late-onset Pompe disease

Glycogen Storage Disorders

Glycolysis featured image

Glycolysis

The glyoxylate cycle

Glyoxylate Cycle

Step 7 of heme metabolism

Heme Metabolism

Child with I-cell disease

I-cell Disease

Utilization of ketone bodies

Ketone Body Metabolism

Krabbe disease on imaging

Krabbe Disease

Schematic depiction of Fredrickson classification type II and type IV

Lipid Disorders

Absorption of short-chain fatty acids (SCFA) in the large intestine

Lipid Metabolism

Comparing-Mitosis-Meisosis

Meiosis

Tigroid pattern in MLD

Metachromatic Leukodystrophy

Ragged blue fibres

Mitochondrial Myopathies

Mucopolysaccharidosis VI

Mucopolysaccharidoses

Cherry-red spot

Niemann-Pick Disease

Structure of a nucleotide

Nucleic Acids

Uridine triacetate structure Orotic aciduria

Orotic Aciduria

Shunt in lysosomal storage disorder

Overview of Lysosomal Storage Diseases

Formation of actin filaments from individual actin proteins

Overview of Protein Functions

The pentose phosphate pathway

Pentose Phosphate Pathway

Erosions, crust, and blisters are evident on the hands of this patient with PCT

Porphyrias

Gene expression from DNA

Post-transcriptional Modifications (RNA Processing)

Example of primary structure of a protein

Post-translational Protein Processing

Image representing the tertiary structure of proteins

Proteins and Peptides

Structures of purines adenine and guanine

Purine and Pyrimidine Metabolism

Purine Salvage Deficiencies

2 helix–turn–helix regulatory proteins bound to DNA in the major groove

Regulation of Transcription

Basic structure of ribonucleotides

RNA Types and Structure

G protein coupled receptor (GPCR)

Second Messengers

Genetic Code

Stages and Regulation of Translation

Transcription process and synthesis of mRNA

Stages of Transcription

Reactions contributing to proline synthesis

Synthesis of Nonessential Amino Acids

Cherry-red spot

Tay-Sachs Disease

Trace elements

Trace Elements

Urea cycle

Urea Cycle

Urea cycle

Urea Cycle Disorders

Characteristic skin rash associated with pellagra Malabsorption

Water-soluble Vitamins and their Deficiencies

Diagram pharyngeal aortic arches

Branchial Apparatus and Aortic Arches

Rotation of the limbs

Development of Limbs

Embryo between weeks 4 and 7

Development of the Abdominal Organs

Development of the Face - 14 weeks

Development of the Brain, Spinal Cord, and Face

Embryonic development of the gut tube

Development of the Bronchial Tree

Ligamentum arteriosum

Development of the Heart

Developmental location of the pronephros, mesonephros, and metanephros in the developing embryo

Development of the Urogenital System

The hypoblast and epiblast form the bilaminar disc

Embryoblast and Trophoblast Development

First week of human development

Fertilization and First Week

Primordial germ cells become associated with primary sex cords

Gametogenesis

Process of gastrulation

Gastrulation and Neurulation

Periods of time within gestation in which organ systems are most susceptible to teratogens

Teratogenic Birth Defects

ABCDE-Assessment-fallback

ABCDE Assessment

Abdominal and Cardiac Evaluation with Sonography in Shock protocol-01

ACES and RUSH: Resuscitation Ultrasound Protocols

Rumack Matthew nomogram Acetaminophen Overdose

Acetaminophen Overdose

Full-thickness necrosis of the heel due to acute limb ischemia

Acute Limb Ischemia

Head tilt chin lift maneuver

Airway Management

Heimlich maneuver

Airway Obstruction

Diagram of pulmonary edema

Altitude Sickness

Blunt abdominal trauma

Blunt Abdominal Injury

Diaphragmatic rupture

Blunt Chest Trauma

Rule of 9s in children

Burns

Carbon Monoxide Poisoning Feature

Carbon Monoxide Poisoning

Public access defibrillation

Cardiac Arrest

Back blows and chest thrusts

Cardiopulmonary Resuscitation (CPR)

Severe caustic injury of the pharynx

Caustic Ingestion (Cleaning Products)

Chest pain

Chest Pain

Forearm compartments

Compartment Syndrome

Traumatic asphyxia due to blunt chest trauma

Crush Syndrome

Acute cyanide poisoning

Cyanide Poisoning

Decompression sickness diagnostic imaging

Decompression Sickness (DCS)

Dog bite

Dog and Cat Bites

Bilateral pulmonary parenchymal infiltrate compatible with ARDS

Drowning

Chest X-ray of pneumomediastinum and left-sided pleural effusion

Esophageal Perforation

Flail chest

Flail Chest

Focused Assessment with Sonography for Trauma (FAST)

Foreign body aspiration X-ray

Foreign Body Aspiration

Frostbite causes mummified feet

Frostbite

Atropa belladonna

General Principles of Toxidromes

$Sonourethrogram of penile fracture$

Genitourinary Trauma

$CT image of patients skull fractures$

Head Trauma

Pathophysiology chart of heatstroke

Heatstroke

Massive right hemothorax

Hemothorax

A person with birth deformities associated with prenatal exposure to Agent Orange

Herbicide Poisoning

Treatment algorithm diagram for diabetic ketoacidosis

Hyperglycemic Crises

MRI of insulinomas

Hypoglycemia

Osborn waves

Hypothermia

Vespula sp. wasp sting

Insect and Scorpion Stings

Insecticide poisoning etiology

Insecticide Poisoning

Malignant Hyperthermia

Mediastinum

Mediastinitis

Blood supply of the small intestine through the superior mesenteric artery

Mesenteric Ischemia

Lead line in gingiva - metal poisoning

Metal Poisoning (Lead, Arsenic, Iron)

Neck collar attachment for multitrauma patient

Multitrauma

Neuroleptic malignant syndrome

Neuroleptic Malignant Syndrome

Peripheral blood smear showing normochromic RBCs with anisocytosis:poikilocytosis - neutropenia

Neutropenic Fever

Noninvasive ventilation

Noninvasive Ventilation (NIV)

Overview of Antidotes

Overview of Antidotes

Large left thoraco-abdominal wound with epiplocele

Penetrating Abdominal Injury

Bullet in heart

Penetrating Chest Injury

Large volume pneumoperitoneum

Perforated Viscus

Subxiphoid approach for pericardiocentesis

Pericardial Effusion and Cardiac Tamponade

Pneumothorax size determination

Pneumothorax

X-ray chest PA view showing pulmonary oedema

Pulmonary Edema

Hypoxemia

Respiratory Failure

Tea coloured urine due to rhabdomyolysis

Rhabdomyolysis

Sepsis and septic shock

Sepsis and Septic Shock

Clinical characteristics of serotonin syndrome

Serotonin Syndrome

Western diamondback rattlesnake

Snakebites

Female black widow spider

Spider Bites

Staphylococcus aureus Toxic Shock Syndrome

Toxic Shock Syndrome

Lily of the valley

Toxicology of Plants

Emergency situation shock

Types of Shock

Advance directives

Advance Directives

Basics of Medical Ethics

Basics of Medical Ethics

Clinician-Patient Relationship

Clinician–Patient Relationship

Conflict of Interest

Conflict of Interest

Components of medical capacity

Decision-making Capacity and Legal Competence

Delivery of bad news

Delivery of Bad News

Components of valid informed consent disclosure of information

Disclosure of Information

End-of-life issues

End-of-life Issues

Malpractice

Malpractice

Confidentiality

Patient-Doctor Confidentiality

Demonstration against abortion laws

Reproductive Ethical Issues

Research Ethics

Research Ethics

A Venn Diagram illustrating the general addition rule of probability

Basics of Probability

Reliability and Validity

Causality, Validity, and Reliability

$True positive fraction$

Epidemiological Values of Diagnostic Tests

Measures of Central Tendency and Dispersion

Measures of Central Tendency and Dispersion

Phenylketonuria Testing

Measures of Disease Frequency

Annual Death Rate Formula

Measures of Health Status

Contingency Table

Measures of Risk

Number Needed to Treat

Number Needed to Treat

Points of Intervention

Population pyramid USA

Population Pyramids

Trial Graph 3

Statistical Power

Probability models and random variables - types of errors

Statistical Tests and Data Representation

Detection Bias

Types of Biases

General Categories of Population Research Design

Types of Epidemiological Studies

Dichotomization

Types of Variables

Type III acromioclavicular joint injury on x-ray

Acute Shoulder Pain

Colonoscopy

Adult Health Maintenance

Foot pain - Sclerosis and fragmentation of the calcaneal apophysis

Ankle and Foot Pain

Straight leg test

Back Pain

Clinical breast examination

Breast Cancer Screening

ThinPrep Pap smear HPV

Cervical Cancer Screening

Changes in the Elderly

Changes in the Elderly

Child and Adolescent Care

Child and Adolescent Care

Coronal-oblique T2-weighted magnetic resonance image showing full-thickness rotator cuff tear

Chronic Shoulder Pain

Colon polyp

Colorectal Cancer Screening

Asthma Inhaler

Dyspnea

Macular rash of rubella on the skin of a child’s back

Generalized and Localized Rashes

Hand pain - radiograph

Hand and Wrist Pain

Baby with umbilical cord stump

Infant Care

Four exams used to determine the cause of knee pain

Knee Pain

Chest radiograph bronchogenic squamous cell carcinoma

Lung Cancer Screening

Spurling test

Neck Pain

Body Mass Index calculation

Obesity

Older Adult Care and Screening

Analgesic ladder for cancer pain diagram with steps

Pain Management

Ultrasound image of a 12-week fetus

Prenatal Care

Prostate Cancer Fallback image

Prostate Cancer Screening

Foreign body in the carina

Wheezing

Adipose tissue

Adipose Tissue

Cross sections of a small artery (left) and an arteriole (right)

Arteries

Process of endochondral ossification

Bone Development and Ossification

Bone-remodeling diagram

Bone Remodeling and Healing

Sinusoid capillaries

Capillaries

Elastic cartilage

Cartilage

Gap junction

Cell Junctions

Eukaryotic cell

Cell Types: Eukaryotic versus Prokaryotic

Red and yellow marrow portions of the bone

Composition of Bone Marrow

Fibroblasts

Connective Tissue

Electron micrograph of blood cells

Erythrocytes

Goblet cell

Glandular Epithelium

White blood cells

Lymphocytes

Platelet Granule Exocytosis

Platelets

Thymus diagram

Primary Lymphatic Organs

Anatomy of the lymphatic system

Secondary Lymphatic Organs

Layers of the epidermis

Structure and Function of the Skin

Internal structure of a femur head structure of bones

Structure of Bones

Simple columnar epithelium

Surface Epithelium

Cytoskeleton attached to plasma membrane - cell structure

The Cell: Cell Membrane

Filaments of the cytoskeleton

The Cell: Cytosol and Cytoskeleton

Cell and its organelles

The Cell: Organelles

Types of organization within muscles

Types of Muscle Tissue

Longitudinal smooth muscles of Vena Cava

Veins

White Myeloid Cells

Intraepithelial lymphocytes

Adaptive Cell-mediated Immunity

Routes of antigen presentation MHC I and II molecules

Adaptive Immune Response

Kaposi's sarcoma nose

AIDS-defining Conditions

The development of autoimmune diseases

Autoimmunity

Retention of primary dentition X-ray

Autosomal Dominant Hyperimmunoglobulin E Syndrome

B-cell activation and maturation processes in the germinal center

B Cells

Blood-type antigens

Blood Group Systems

Western blotting of B. burgdorferi

Blotting Techniques

C3 deficiency

C3 Deficiency

Cells of the Innate Immune System

Peripheral blood smear Chediak-Higashi syndrome

Chédiak-Higashi Syndrome

NHGRI human male karyotype

Chromosome Testing

Process of phagocytosis in neutrophils

Chronic Granulomatous Disease

Common Variable Immunodeficiency (CVID)

Facial appearance diGeorge syndrome

DiGeorge Syndrome

Hereditary Angioedema (C1 Esterase Inhibitor Deficiency)

HIV replication cycle

HIV Infection and AIDS

Structure of the antibody

Humoral Adaptive Immunity

Hyper IgM Syndrome

Hyper-IgM Syndrome

Inheritance pattern of autosomal recessive conditions

IL-12 Receptor Deficiency

Mechanism of direct ELISA

Immunoassays

Class-switch recombination

Immunoglobulins

Pattern recognition receptors

Innate Immune Response

X-linked recessive inheritance

IPEX Syndrome

Leukocyte migration Leukocyte adhesion deficiency type 1

Leukocyte Adhesion Deficiency Type 1

Respiratory burst diagram

Myeloperoxidase Deficiency

Major histocompatibility complex

Organ Transplantation

Annealing of primers

Polymerase Chain Reaction (PCR)

Dimeric structure of IgA antibody

Selective IgA Deficiency

Bubble Boy Disease

Severe Combined Immunodeficiency

Wiskott–Aldrich syndrome presenting with multiple face petechiae

Severe Congenital Neutropenia

2-signal model - T-cell dependence on costimulation

T Cells

Complement pathway

Terminal Complement Pathway Deficiency

Blood collection process

Transfusion Products

Hemolytic reaction symptoms

Transfusion Reactions

Mast cells in allergy

Type I Hypersensitivity Reaction

Antibody-dependent cellular cytotoxicity Hypersensitivity

Type II Hypersensitivity Reaction

Immune Complex Disease Hypersensitivity III

Type III Hypersensitivity Reaction

Types of hypersensitivity: Type 4

Type IV Hypersensitivity Reaction

Components of vaccines

Vaccination

Wiskott-Aldrich syndrome: petechiae, hematoma and eczema

Wiskott-Aldrich Syndrome

X-linked agammaglobulinemia

X-linked Agammaglobulinemia

Ultrasonography of abdominal aortic aneurysm

Abdominal Aortic Aneurysms

Grade IV megaesophagus

Achalasia

Acne vulgaris pathogenesis illustrated

Acne Vulgaris

Schwannoma histology

Acoustic Neuroma

Comparison of hands acromegaly

Acromegaly and Gigantism

Albino showing actinic keratoses lesions over the chest

Actinic Keratosis (AK)

Chest X-ray shows bronchovascular prominance

Acute Bronchitis

Gallbladder wall thickening acute cholangitis

Acute Cholangitis

Clinical course of ATN

Acute Kidney Injury

Bone marrow smear from a patient with acute lymphoblastic leukemia

Acute Lymphoblastic Leukemia

AML bone marrow findings of Auer rods

Acute Myeloid Leukemia

Advanced otitis media

Acute Otitis Media

Fat tissue necrosis in acute pancreatitis

Acute Pancreatitis

Chest CT scan indicative of severe ARDS

Acute Respiratory Distress Syndrome

69-year-old female with tiredness and a persistent tan

Adrenal Insufficiency and Addison’s Disease

Child with albinism

Albinism

Three stages of alcoholic liver disease

Alcoholic Liver Disease

Alopecia areata

Alopecia

Alport syndrome kidney biopsy

Alport Syndrome

Alzheimers brain

Alzheimer Disease

Amyloid

Amyloidosis

Pathophysiologic mechanism of ALS

Amyotrophic Lateral Sclerosis

Rectum and anal canal schematic

Anal Cancer

Fistula, fissures and abscess

Anal Fissure

Suprasphincteric fistula

Anal Fistula

Spherocytes anemia

Anemia: Overview

Angioedema of the lips

Angioedema

Process of ankylosis

Ankylosing Spondylitis

Bilateral cryptophthalmos anomalies of the cornea

Anomalies of the Cornea

Location of lesion in anterior cord syndrome

Anterior Cord Syndrome

Gram stain of Bacillus anthracis

Anthrax

Example of a collapsed nasal bridge

Antinuclear Cytoplasmic Antibody-Associated Vasculitis

Livedo reticularis

Antiphospholipid Syndrome

Stanford and DeBakey classifications for aortic dissection

Aortic Dissection

Aortic Regurgitation

Aortic Regurgitation

Aortic stenosis heart sounds

Aortic Stenosis

Features of aplastic anemia

Aplastic Anemia

McBurneys Point photograph

Appendicitis

12-lead ECG Arrhythmogenic right ventricular cardiomyopathy (ARVC)

Arrhythmogenic Right Ventricular Cardiomyopathy

Malignant peritoneal mesothelioma as a cause of ascites

Ascites

Stage IV splenic injury

Asplenia

Asthma

Asthma

Contrast MRI showing glioblastoma multiforme

Astrocytoma

Ataxia-telangiectasia

Ataxia-telangiectasia

Partial atelectasis of the right upper lobe

Atelectasis

Atherosclerosis grade 1

Atherosclerosis

Erythema and lichenification in the kneefolds of a patient with atopic dermatitis

Atopic Dermatitis (Eczema)

ECG atrial fribrillation

Atrial Fibrillation

Slow atrial flutter

Atrial Flutter

First-degree AV block ECG

Atrioventricular Block

Alpha-synuclein in the pathogenesis of MSA

Atypical Parkinsonian Syndromes

Warm autoimmune hemolytic anemia

Autoimmune Hemolytic Anemia

Jaundice

Autoimmune Hepatitis

Gross pathology from nephrectomy in a patient with autosomal dominant polycystic kidney disease

Autosomal Dominant Polycystic Kidney Disease

Ultrasonography of the right kidney demonstrating autosomal recessive polycystic kidney disease

Autosomal Recessive Polycystic Kidney Disease

Esophageal granular cell tumor colliding with intramucosal adenocarcinoma

Barrett’s Esophagus

Different Channelopathies in Bartter’s syndrome

Bartter Syndrome

Nodular basal cell carcinoma of the nose

Basal Cell Carcinoma

Histopathological exam of Becker muscular dystrophy

Becker Muscular Dystrophy

Oblique radiograph of the right arm shows soft tissue swelling overlying a broad-based osteochondroma

Benign Bone Tumors

Hepatic adenoma

Benign Liver Tumors

Benign prostatic hyperplasia

Benign Prostatic Hyperplasia

Bartholin gland cyst benign vulvar conditions

Benign Vulvar Conditions

Sagittal cut of the upper eye lid

Blepharitis

Ptosis in botulism

Botulism

Bowen’s disease in an 81-year-old-woman

Bowen Disease and Erythroplasia of Queyrat

Bowenoid papulosis skin biopsy

Bowenoid Papulosis

Brachial plexus

Brachial Plexus Injuries

Sinus bradycardia at 42 bpm

Bradyarrhythmias

MRI of a brain abscess showing the classic “ring enhanced” lesion

Brain Abscess

Surgical-and-endovascular-treatments-for-cerebral-aneurysm-thrombosis-A-Endovascular

Brain Aneurysms

Algorithm describing the course of action in patients with brain death

Brain Death

Bronchiectasis pathophysiology

Bronchiectasis

HRCT in bronchiolitis obliterans

Bronchiolitis Obliterans

Area of spinal cord affected by BSS

Brown-Séquard Syndrome

Acute Budd-Chiari Syndrome Doppler

Budd-Chiari Syndrome

Cutaneous findings in bullous pemphigoid

Bullous Pemphigoid and Pemphigus Vulgaris

Left bundle branch block pathophysiology

Bundle Branch and Fascicular Blocks

Pathophysiology of Cancer Carcinogenesis

Carcinogenesis

Fine-needle aspiration of the liver showing metastatic carcinoid

Carcinoid Tumors and Syndrome

Gross pathology of excised left atrial myxoma

Cardiac Myxoma

Carotid artery stenosis

Carotid Artery Stenosis

Tests for carpal tunnel syndrome

Carpal Tunnel Syndrome

Eye disease simulation cataract

Cataracts in Adults

Summarizing the pathophysiology of celiac disease

Celiac Disease

Coagulative necrosis in kidney tissue

Cell Injury and Death

Histopathology of pulmonary anthracosis

Cellular Accumulations

Heart left ventricular hypertrophy

Cellular Adaptation

Left lower extremity cellulitis

Cellulitis

Location of lesion in central cord syndrome

Central Cord Syndrome (CCS)

Cerebellar Disorders

Chalazion

Haemophilus ducreyi bacteria

Chancroid

Chlamydial intranuclear inclusions

Chlamydial Infections

Gallbladder obstruction

Cholecystitis

Gallstones

Cholelithiasis

Chondrosarcoma on shoulder

Chondrosarcoma

Cytomegalovirus retinitis

Chorioretinitis

Acanthosis nigricans Grade 1

Chronic Diabetic Complications

Activated eosinophils in hypereosinophilic syndrome

Chronic Eosinophilic Leukemia

Hydronephrosis on renal ultrasound

Chronic Kidney Disease

Blood smear from an adult with marked lymphocytosis

Chronic Lymphocytic Leukemia

Bone marrow examination for chronic myeloid leukemia

Chronic Myeloid Leukemia

Chest/abdomen X-ray showing right pneumothorax chronic obstructive pulmonary disease (COPD)

Chronic Obstructive Pulmonary Disease (COPD)

Chronic pancreatitis with arrows

Chronic Pancreatitis

Exemplary photographs for a spectrum of clinical manifestations of chronic venous disease

Chronic Venous Insufficiency

Pathology of alcoholic liver cirrhosis

Cirrhosis

Shoulder anatomy Biodigital

Clavicle Fracture

Cluster Headaches

Cluster Headaches

Segment of resected colon in the unfixed state containing an invasive colorectal carcinoma and two adenomatous polyps

Colon Polyps

Colon polyp

Colorectal Cancer

Examination of Brain reflexes

Coma

Typical features of CRPS

Complex Regional Pain Syndrome (CRPS)

Numerous genital warts on the labia majora

Condylomata Acuminata (Genital Warts)

Signs of CHF

Congestive Heart Failure

Conjunctivitis

Conjunctivitis

The Bristol Stool Scale

Constipation