21 results
Bell's Phenomenon on Physical Exam

Carles Bell realized that when trying to close the eye on the
Bell's Phenomenon ... Physical Exam Carles ... #Phenomenon #Sign ... #clinical #video ... #PhysicalExam #ophthalmology
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
Anterior ischemic ... Clinical manifestations ... Doppler US : halo sign ... #Rheumatology #Ophthalmology ... #Diagnosis #Algorithm
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Differential Diagnosis Algorithm ... Clinical Pearls ... • Neurologic symptoms ... a mass as the cause ... #Causes #Ophthalmology
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
Pathogenesis and clinical ... mutated in all cells ... Retinoblastoma #pathophysiology ... #ophthalmology ... #symptoms
Polyarteritis Nodosa (PAN): Pathogenesis and Clinical Findings

Medical Comorbidities Malignancies (most commonly hairy-cell leukemia)
Immunogenetic Predisposition: patient is
Pathogenesis and Clinical ... Viral replication causes ... - Myocardial ischemia ... #Diagnosis #Signs ... #Symptoms #Vasculitis
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
Pathogenesis and clinical ... #Retinopathy #pathophysiology ... #ophthalmology ... #diagnosis #signs ... #symptoms #complications
Central Retinal Artery Occlusion: Pathogenesis and clinical findings
 • Inflammatory Disease: (i.e. GCA, SLE, GPA) ->
Pathogenesis and clinical ... retinal edema caused ... #ophthalmology ... #diagnosis #signs ... #symptoms
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... high WBC count cause ... AKI, acute limb ischemia ... WBC >100k, + lab signs ... Lysis of tumor cells
Features of a Sickle Cell Crisis 
Sickle-cell disease - an autosomal recessive blood disorder.
Characterized by red
Crises can be precipitated ... The underlying pathophysiology ... capillaries leading to ischaemia ... Crisis #Features #Signs ... #Symptoms
X-Linked Agammaglobulinemia: Pathogenesis and clinical findings
The epidemiology of this disease is 1/340,000 births and roughly double
Pathogenesis and clinical ... Signs of immunodeficiency ... to produce all classes ... /Symptoms/Findings ... Agammaglobulinemia #XLinked #pathophysiology