31 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... : 'signet ring sign ... LIP #Clinical #Diagnosis ... #Radiology #CTChest ... Comparison #Table #RadiologyAssistant
Hilar and mediastinal lymphadenopathy
In sarcoidosis the common pattern is right paratracheal and bilateral hilar adenopathy ('1-2-3-sign').
In
adenopathy ('1-2-3-sign ... #Diagnosis #Radiology ... Lymphadenopathy #Differential ... #RadiologyAssistant
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
"Terry Thomas" sign ... to diagnosis scapholunate ... ("Terry Thomas sign ... 1 week MH/CCF ... Orthopedics #Sports #MSK
Bronchiectasis is defined as localized bronchial dilatation.
The diagnosis of bronchiectasis is usually based on a combination
dilatation (signet-ring sign ... A signet-ring sign ... #Diagnosis #Radiology ... Bronchiectasis #Differential ... #RadiologyAssistant
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... "pooping duck sign ... 1 week MH/CCF ... #XRay #Diagnosis ... Orthopedics #Sports #MSK
Refeeding Syndrome: Pathogenesis and clinical findings

Patients at Risk of Refeeding Syndrome:
 - Little or no nutritional
overload -> - CHF ... Constipation - MSK ... Refeeding #Syndrome #diagnosis ... #pathophysiology ... #symptoms #signs
Diffuse consolidation
The most common cause of diffuse consolidation is pulmonary edema due to heart failure.
This is
cardiogenic edema, to differentiate ... Look for other signs ... #Diagnosis #Radiology ... Consolidation #Differential ... #RadiologyAssistant
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
are enough to diagnose ... excludes other differentials ... ’s called Frog sign ... PhysicalExam #JVP #Cardiology ... #Neck #Frog #Sign
Diagram of different types of bone tumors that can occur around the knee on XRay -
blade of grass sign ... #Bone #Tumors #Diagnosis ... #Bony #Differential ... #Radiology #XRay ... #msk #lesions #
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
sensory • Before diagnosis ... MeralgiaParesthetica #MSK ... #pathophysiology ... #differential # ... diagnosis #signs