The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Central Retinal Vein Occlusion (CRVO): Pathogenesis and clinical findings

#CentralRetinalVein #Occlusion #CRVO #pathophysiology #ophthalmology #diagnosis #signs #symptoms
Central Retinal Vein Occlusion ... CentralRetinalVein #Occlusion ... #CRVO #pathophysiology ... #ophthalmology ... diagnosis #signs #symptoms
Central Retinal Artery Occlusion: Pathogenesis and clinical findings
 • Inflammatory Disease: (i.e. GCA, SLE, GPA) ->
Retinal Artery Occlusion ... Retinal Artery Occlusion ... #CRAO #pathophysiology ... #ophthalmology ... diagnosis #signs #symptoms
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
Retinoblastoma Signs / Symptoms ... Retinoblastoma #pathophysiology ... #ophthalmology ... diagnosis #signs #symptoms
Alzheimer’s Disease: Pathogenesis and Clinical Findings
Risk factor for Late Onset Alzheimer's (99% of cases):
 - Increasing
chromosome 21) Signs / Symptoms ... AlzheimersDisease #Dementia #pathophysiology ... #geriatrics #diagnosis ... #signs #symptoms
Prader-Willi Syndrome: Pathogenesis and clinical findings
 • Maternal uniparental disomy: inheriting 2 copies of maternal chromosome
Syndrome Signs/Symptoms ... Syndrome #genetics #pathophysiology ... #peds #pediatrics
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
Hard Exudates • Occlusion ... #Retinopathy #pathophysiology ... #ophthalmology ... diagnosis #signs #symptoms
Diabetic Retinopathy: Pathogenesis and clinical findings

Mild Non-proliferative DR
 • Outpouchings of the weakened capillary walls or
infarcts from occlusions ... Retinopathy #Diabetes #ophthalmology ... complications #pathophysiology
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
#Xeropthalmia #pathophysiology ... #ophthalmology ... diagnosis #signs #symptoms
Acute Otitis Media: Pathogenesis and Clinical Findings (in Children)
Upper Respiratory Tract Infection: 
 - Bacterial: Streptococcus
#OtitisMedia #pathophysiology ... #diagnosis #symptoms ... #signs #peds #pediatrics
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
Orbital #Cellulitis #pathophysiology ... #ophthalmology ... diagnosis #signs #symptoms