12 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: round cysts, evenly ... : 'signet ring sign ... central dot. - LIP #Clinical ... Diagnosis #Radiology #CTChest ... #Cystic #Cysts
Algorithm for Diagnosis of Diffuse Cystic Lung Disease (DCLD)
Round, smooth cysts with normal lung parenchyma in
Round, smooth cysts ... - PLCH Round cysts ... /FB, LCDD, SS Cyst ... pattern not consistent ... #Diagnosis #differential
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... bizarre shaped cysts ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
low attenuation areas ... multiple thick walled cysts ... (LAM): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... perilymphatic distribution ... before the typical cysts ... #Clinical #Radiology ... #HRCT #CTChest
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... before the typical cysts ... #Clinical #Diagnosis ... Radiology #Pulmonary #CTChest ... NodularPattern #Differential
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
is a reticular patern ... caused by multiple cysts ... the central dot sign ... #Clinical #Radiology ... Histiocytosis #Cystic
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Dermatological Conditions - Distribution ... papules, pustules, cysts ... associated with signs ... Christmas tree pattern ... dermatology #rash #differential
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
function tests algorithm ... symptoms/signs ... evaluation of the pattern ... Areas of diagnostic ... Liver #Enzymes #Differential
Pericardial Hemangioma on Echocardiogram (PLAX)
DDx on this para-aortic pericardial mass? 
Radiologist on CT: “No enchancement on
Hemangioma on Echocardiogram ... ECHO appearance differentials ... favour pericardial cyst ... mass showed some areas ... #PLAX #pocus #clinical