7 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
of Langerhans cell ... central dot. - LIP #Clinical ... #CTChest #Cystic ... #Differential #Comparison ... #Table #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
or Langerhans cell ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cavity #Cyst # ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Langerhans cell ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Differential #Comparison
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
• Nodular or cavitary ... Mimics TB with: Cavitary ... Advanced HIV (CD4 cell ... Disease: Clinical ... Imaging, high res CT
Solitary Cell Plasmacytoma

What?
• Plasma cell neoplasms can present as a single lesion (solitary plasmacytoma)
• In 3%
plasmacytoma) Clinical ... mainly in the oral cavity ... tonsillar fossa, nasal cavity ... Diagnosis? ... • 18F-FDG PET/CT
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
thickening in the basal parts ... these non-specific CT ... broad differential diagnosis ... #CTChest #RBILD ... RespiratoryBronchiolitis #ILD #RadiologyAssistant
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
suspected) - CT ... chest; CT abdomen ... uric acid, high LDH ... renal failure, pulmonary ... Oncology #HemeOnc #Diagnosis