66 results
Central retinal artery occlusion (CRAO). Positive "spot sign" on Ocular Ultrasound

78 yo M with sudden onset
Positive "spot sign ... " on Ocular Ultrasound ... Occlusion #Embolus #Clinical ... #POCUS #Ocular ... #Ultrasound
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
Pathogenesis and Clinical ... tenderness • Positive ... vertebrae • CT - collar ... Spondylolisthesis #MSK #diagnosis ... #pathophysiology
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Maculopapular - Diagnostic ... Ill-appearing, vital sign ... Mucocutaneous or ocular ... Immunocompromised #Diagnosis ... Targetoid #Algorithm #Differential
False Positive Lung Point on POCUS
Lung-Cardiac Point and Lung-Diaphragm Point
These images highlight selected differentials to pleural
False Positive Lung ... highlight selected differentials ... LungPoint #POCUS #clinical ... lungdiaphragam #ultrasound ... #diagnosis #mimics
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... : 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
Pathogenesis and Ocular ... conjunctiva) • Bitot's spots ... #Xeropthalmia #pathophysiology ... ophthalmology #diagnosis ... #signs #symptoms
92F w acute painless monocular vision loss. What's the diagnosis?

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Central retinal artery occlusion (CRAO)! Retrobulbar "spot
What's the diagnosis ... Retrobulbar "spot ... sign" with embolus ... #Clinical #POCUS ... #OcularUS #CRAO
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
Pathogenesis and Clinical ... Impaired extra-ocular ... Orbital #Cellulitis #pathophysiology ... ophthalmology #diagnosis ... #signs #symptoms
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 position ... ophthalmology #diagnosis ... #signs #symptoms
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
association • M > F Clinical ... Behcet syndrome (Clinical ... Skin lesions • Positive ... Behcet disease) Differential ... #management #signs