15 results
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
- Differential Diagnosis ... Acute Eos PNA • Chronic ... Pneumonia, COP, Chronic ... #Differential #Diagnosis ... #pulmonary #radiology
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Radiation C - Cystic Fibrosis ... caused by a rigid chest ... clearance: - Cystic Fibrosis ... aspergillosis - Chronic ... #differential #diagnosis
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... smokers, upper lobe ... In chronic HP fibrotic ... #Clinical #Diagnosis ... #Radiology #CTChest
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Pulmonary fibrotic ... • Silicosis • Chronic ... characteristic features Clinical ... malignancy, and chronic ... Tuberculosis Diagnosis
Longstanding Sarcoidosis
Here a typical chest film in a patient with long standing Sarcoidosis (stage IV).
There is
Here a typical chest ... The differential diagnosis ... includes chronic ... with upper lobe ... #Clinical #Radiology
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
has five major clinical ... aches, joint pain, chest ... fungal stain of clinical ... MC: CNS CSF: • ... pulmonary infection
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Pulmonary fibrotic ... • Silicosis • Chronic ... characteristic features Clinical ... malignancy, and chronic ... Tuberculosis Diagnosis
Notice that even within each lobe there is a gravity dependent difference in density.
This is only
even within each lobe ... exsudate due to infection ... #Clinical #Radiology ... #CTChest #CHF # ... Alveolar #Pulmonary
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Immunocompromised status • Chronic ... encounters due to NTM: Chronic ... of right middle lobe ... massiliense in CF ... Disease: Clinical
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
the left lower lobe ... like idiopathic pulmonary ... in chronic hypersensitivity ... #Clinical #Radiology ... #CTChest #DrugInduced