14 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #Differential #Comparison ... #Table #RadiologyAssistant
Ocular Globe Rupture on POCUS

A patient presents with eye pain and is unable to open his
Ocular Globe Rupture ... ("flat tire sign ... " on CT) #Globe ... #Ophthalmology ... #clinical #ultrasound
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Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... can suggest the diagnosis ... feeding vessel sign ... #Clinical #Radiology ... SepticEmboli #Cavity #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a nodular ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #Differential #Comparison ... #Table #RadiologyAssistant
Periorbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Dacryoadenitis: infection of the lacrimal glands
b. Conjunctivitis: inflammation of the
Pathogenesis and Clinical ... normal: - extra-ocular ... movements and globe ... patient NEEDS a CT ... #diagnosis #signs
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Air Crescent Sign ... on Chest CT • ... consolidation or nodular ... #diagnosis #radiology ... #clinical
Papilledema on Ocular POCUS

This 27yo female presents with an intractable headache. Which of the following do
Diagnosed with Idiopathic ... ultrasound demonstrated signs ... papilla into the globe ... #POCUS #IIH #clinical ... #ultrasound #Ophthalmology
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On the left we see focal irregular septal thickening in the right upper lobe in a
the right upper lobe ... that support this diagnosis ... lymph nodes and a nodular ... #Clinical #Radiology ... Carcinomatosis #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
smokers, upper lobe ... #Clinical #Diagnosis ... #Radiology #CTChest ... #UIP #Comparison ... Fibrosis #Mimic #ILD #RadiologyAssistant
Thumbprinting in Ischemic Colitis- Contrast-enhanced computed tomography of the abdomen, performed to evaluate the possibility of
This radiographic sign ... consistent with a diagnosis ... ischemic #colitis #clinical ... #radiology #CT ... #NEJM