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Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Centrilobular emphysema ... central dot. - LIP #Clinical ... #Diagnosis #Radiology
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... associated pulmonary emphysema ... #Clinical #Diagnosis ... #Cavity #Cyst #Emphysema
Empyema Necessitans (EN) on Chest Wall Physical Examination

Pulmonary teaching case: you are called to the bedside
Empyema Necessitans ... drain - What’s the diagnosis ... This is Empyema ... Because Empyema ... #PhysicalExam #clinical
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Empyema Necessitans (EN) on Chest POCUS

Pulmonary teaching case: you are called to the bedside of a
Empyema Necessitans ... POCUS - What’s the diagnosis ... This is Empyema ... Because Empyema ... Necessitans #EN #Chest #clinical
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On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
challenging differential diagnosis ... centrilobular emphysema ... Emphysema however ... diseases and also in emphysema ... #Clinical #Radiology
COPD phenotypes:  Blue Bloaters vs. Pink Puffers
The two most stereotypical forms of COPD are pink
physiology and clinical ... have classic “dry emphysema ... #Diagnosis #COPD
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Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... Centrilobular emphysema ... #Clinical #Radiology
In the hospital: minimal improvement with abx for CAP. Lung US to the rescue. Diagnostic thora;
Diagnostic thora ... IMUS_Spokane #Clinical ... #POCUS #Lung #Empyema
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UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... centrilobular emphysema ... #Clinical #Diagnosis
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
Pathogenesis and Clinical ... Meningitis -> Subdural empyema ... ophthalmology #diagnosis