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Embryology Question Set 1
About the Lecture
The lecture Embryology Question Set 1 by Lecturio USMLE is from the course Embryology – Board-Style Questions.
Included Quiz Questions
A 45-year-old female underwent Endoscopic Retrograde cholangiopancreatography (ERCP) for evaluation of suspected biliary strictures. ERCP identifies two ducts in the pancreas, a small ventral duct and a larger dorsal duct. Diagnosis of pancreatic divisum was made. Which of the following is INCORRECT regarding the condition?
- Computed Tomography (CT) scanning of abdomen is the most sensitive non-invasive diagnostic technique.
- Pancreatic divisum is the most common congenital anomaly of pancreas.
- Most of the patients having pancreatic divisum are asymptomatic and are identified incidentally.
- Endoscopic ultrasonography reveals absence of “stack sign”.
- Patients with recurrent episodes of pancreatitis due to pancreatic divisum can be managed endoscopically or surgically.
A 3-month-old female is brought to a pediatrician by her parents. She has central cyanosis without signs of respiratory distress or signs of heart failure. An Echocardiogram reveals severe pulmonary outflow obstruction with right ventricular hypertrophy, ventricular septal defect and overriding of the aorta. An elective primary surgical repair has been planned at 4 months of age. Which of the following statements is true about this girl's condition?
- Normal hemoglobin in patients with Tetralogy of Fallot does not rule out iron-deficiency anemia.
- Cerebral arterial thrombosis is more common than cerebral venous thrombosis.
- Tricuspid valve is the most common valve affected by bacterial endocarditis in an unoperated Tetralogy of Fallot.
- Refractory heart failure is a common complication of Tetralogy of Fallot.
- Common age of presentation of brain abscess is between 6 to 12 months.
A 10-month-old male infant is brought to the clinic with a history of recurrent episodes of stridor and wheezing. His mother reported that wheezing was exacerbated by crying, feeding, and flexion of neck, and relieved by extension of the neck. Occasionally he used to vomit after feeds. What is the most probable diagnosis?
- Double aortic arch
- Gastroesophageal reflux disease
- Recurrent viral wheeze
- Congenital subglottic stenosis
- Laryngomalacia
A 20-year-old male present with a painless neck mass, gradually increasing in size, situated just anterior and medial to right sternocleidomastoid muscle in the neck for 3 years. Further history revealed that the mass became larger and tender when the patient had an episode of upper respiratory infection. Ultrasound of the neck identified a single round cystic mass with uniform low echogenicity and lack of internal septations. Contrast-enhanced CT scan of the neck showed a homogeneous mass with low attenuation centrally and smooth rim enhancement. Which of the following is the most probable diagnosis?
- 2nd branchial cleft cyst
- Cervical lymphadenopathy
- Ectopic thyroid tissue
- 1st branchial cleft cyst
- Sternomastoid tumor
Author of lecture Embryology Question Set 1
Lecturio USMLE
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