9 results
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Langerhans cell ... histiocytosis (LCH ... #Clinical #Radiology ... #HRCT #CTChest ... #Cystic #Pattern
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
LCH: multiple round ... #Clinical #Radiology ... #HRCT #CTChest ... #LowAttenuation ... #Cystic #Pattern
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
of Langerhans cell ... Cystic LCH: - LAM ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
LIP, Langerhans cell ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #LowAttenuation ... Differential #Diagram #Comparison
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Langerhans cell ... before the typical cysts ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
or a cystic pattern ... with Langerhans cell ... LCH is called a ... #Clinical #Radiology ... #CXR #CTChest #
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Langerhans cell ... before the typical cysts ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
with Langerhans cell ... is a reticular patern ... stage Langerhans cell ... #Clinical #Radiology ... LCH #LangerhansCellHistiocytosis
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
papules, pustules, cysts ... scale • Basal cell ... • Squamous cell ... Christmas tree pattern ... ; pruritis #dermatology