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#radiology #ctchest #differential

Differential Diagnosis of Ground-glass Opacity.

Some abbreviations
HP: Hypersensitive pneumonitis
DIP: Desquamative interstitial pneumonia
PAP: Pulmonary alveolar proteinosis
MIA:
#radiology #ctchest ... Hypersensitive pneumonitis DIP
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
a patient with DIP ... Clinical #Radiology #CTChest ... #DIP #DesquamativeInterstitialPneumonia
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
predominance: UIP ... , NSIP, DIP. - Centrilobular ... Radiology #Pulmonary #CTChest
Arthritis of the Hand - Arthritis Patterns

Osteoarthritis:
• Osteoarthritis of the hand usually involves the DIP and
usually involves the DIP ... Heberden's nodes - DIP ... joints, but not the DIP ... + DIP + 1st CMC ... + all DIP = PsA
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
lung diseases LIP ... I-JIP: usual interstitial ... AIP: acute interstitial
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
function of the DIP ... distal to the DIP ... Swollen and tender DIP ... Extension splint of DIP ... free movement of PIP
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
PIP joints are ... usually dorsal • DIP ... and PIP joints ... hyperextension) • DIP ... deformity (if volar DIP
Phalanges - Hand Anatomy

Joints between phalanges are named interphalangeal meaning “between phalanges.” Because each finger has
#PIP (proximal interphalangeal ... #DIP (distal interphalangeal
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
Lymphangiomyomatosis, LIP ... Diagnosis #Radiology #CTChest ... Comparison #LAM #LIP
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Pneumonia • (UIP ... Pneumonia • (DIP ... Pneumonia • (LIP