36 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #Cysts #Differential ... #Comparison #Table
Primary Bone Tumors - Differential Diagnosis Algorithm 

Metastatic - Most common tumour in adults
 - Breast
- Differential ... - Thyroid - Lung ... Cyst Malignant ... Diagnosis #Algorithm #Orthopedics ... Causes #Oncology #Radiology
Diagram of different types of bone tumors that can occur around the knee on XRay -
different types of bone ... sequestrum, cloaca, and ... blade of grass sign ... #Differential # ... Radiology #XRay
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
bone cyst • Osteoid ... sequestrum, cloaca, and ... blade of grass sign ... #Differential # ... Diagnosis #Radiology
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
disruption (may be bony ... Discharge with orthpedic ... 1 week MH/CCF ... #Radiology #XRay ... #Orthopedics #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
fractured carpal bone ... "pooping duck sign ... common carpal bone ... 1 week MH/CCF ... Wrist #Carpal #Radiology
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
we describe a chest ... are trying to figger ... #CXR #Lucency #Differential ... #Table #CavitaryLesion ... #Diagnosis #Radiology
Bone Tumor Location within the Skeleton

Epiphysis: 
Only a few lesions are located in the epiphysis, so
cyst must be added ... to the differential ... Metaphysis: NOF, SBC, CMF ... Diaphysis #Epiphysis #Radiology ... #MSK #Differential
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... low attenuation (table ... is interstitial lung ... #Diagnosis #Radiology
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
bone cortex • ... anterior sail sign ... can't make A-OK sign ... Splint: Posterior long ... Elbow #Humerus #Radiology