Okay so let’s take a look at diffused lung
disease and with this we’ll take a look
at what’s known as idiopathic and with idiopathic
here’s some important differentials we'll walk
through. And we have idiopathic pulmonary fibrosis
and that would be the clinical diagnosis. So
now you want to get in the habit as you go
through this table, where you’re looking
at two patterns. What's my clinical diagnosis
and then therefore, as a pathologist the pattern
that we would then utilize. Idiopathic pulmonary
fibrosis, pathologic pattern is referred to
as being your usual interstitial pneumonia.
Next, if it’s a desquamating type it would
be called desquamating in pathology. If it’s
a respiratory type of bronchiolitis then with
this you should be thinking about smoking.
Acute interstitial pneumonia. Well, this
one’s big for you. This is called diffused
alveolar damage in pathology. In other words
let’s say that your patient has something
like you might have known originally something
called hyaline membrane disease. Or
maybe acute respiratory distress syndrome.
And in some of these instances what happens?
Well then you might have damage to the alveoli,
where you might have hyaline thickening and
you also have diffused alveolar damage.
Acute interstitial pneumonia. Nonspecific,
let’s mention that here. And then cryptogenic.
And with cryptogenic, often referred to as
being BOOP, which is your bronchiolitis obliterans
organizing pneumonia, okay? Say it, BOOP.