22 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... : 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... Comparison #Table #RadiologyAssistant
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
Anterior ischemic ... Clinical manifestations ... Doppler US : halo sign ... PET/CT: aortitis ... Ophthalmology #Diagnosis
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... mueormycosis, GPA ... #diagnosis #radiology ... #clinical
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
Feeding Vessel Sign ... on Chest CT • ... lung, pulm AVM, GPA ... #diagnosis #radiology ... #clinical
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
Central Retinal Artery Occlusion: Pathogenesis and clinical findings
 • Inflammatory Disease: (i.e. GCA, SLE, GPA) ->
Pathogenesis and clinical ... GCA, SLE, GPA) - ... -> Cherry-red spot ... ophthalmology #diagnosis ... #signs #symptoms
Cheerio Sign (Open Bronchus Sign) on Chest CT
 • Pulmonary nodule with a central lucency
 •
on Chest CT • Pulmonary ... DDx: Pulm adeno Ca ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Kussmaul's Sign and Friedreich's Sign on Neck Examination

A middle-aged M with unknown PMH presents with dyspnea.
demonstrated in the video ... Most likely diagnosis ... small blue-colored spot ... #PhysicalExam #Clinical ... #Video #Cardiology
Water Lily Sign (Camalote Sign) on Chest CT
 • Hydatid cyst in the lung with a
on Chest CT • Hydatid ... cyst in the lung ... #Camalote #CT # ... Lung #Pulmonary #diagnosis ... #radiology #clinical
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
CT • Central GGO ... IFI, PJP, LG, GPA ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical