The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Erectile Dysfunction: Pathogenesis

Erectile Dysfunction - Persistent or recurrent inability to achieve an erection sufficient to achieve
trauma, iatrogenic, diabetes ... hyperlipidemia, diabetes ... (penile artery diameter ... #Pathophysiology ... #Urology #Diagnosis
Diabetic Retinopathy: Pathogenesis and clinical findings

Mild Non-proliferative DR
 • Outpouchings of the weakened capillary walls or
Diabetic Retinopathy ... #Retinopathy #Diabetes ... #ophthalmology ... #diagnosis #complications ... #pathophysiology
Diabetic Foot: Pathogenesis and clinical findings
 • Polyol Pathway - Excess glucose enters Polyol pathway ->
Diabetic Foot: Pathogenesis ... increasing cytogenetic dysfunction ... #DiabeticFoot #pathophysiology ... #complications ... #Diabetes
Alzheimer’s Disease: Pathogenesis and Clinical Findings
Risk factor for Late Onset Alzheimer's (99% of cases):
 - Increasing
Signs / Symptoms / Complications ... Executive planning dysfunction ... concentration • Motor dysfunction ... AlzheimersDisease #Dementia #pathophysiology
Fecal Incontinence - Pathogenesis and Complications
Continence mechanisms are impaired
 • Local neuronal damage
 • External and
Pathogenesis and Complications ... Diabetes) • Altered ... Incontinence #geriatrics #pathophysiology
Prader-Willi Syndrome: Pathogenesis and clinical findings
 • Maternal uniparental disomy: inheriting 2 copies of maternal chromosome
Signs/Symptoms/Complications ... Obesity -> Type 2 diabetes ... Syndrome #genetics #pathophysiology
Pituitary Mass Effects - Pathogenesis and Clinical Findings
 • Pituitary turnors are almost always a benign
Signs / Symptoms / Complications ... Hyperprolactinemia • Diabetes ... • Hypothalamic dysfunction ... mnemonic #GLFTAP #pathophysiology
Upper Urinary Tract infection (UUTI): Pathogenesis and Clinical Findings

Predisposing Factors:
 - Immunocompromised, Diabetes,
 - Elderly, Female
Immunocompromised, Diabetes ... lower tract: As a complication ... UrinaryTractInfection #UUTI #Pathophysiology
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
Signs / Symptoms / Complications ... Retinoblastoma #pathophysiology ... #ophthalmology
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Signs / Symptoms / Complications ... bladder/bowel dysfunction ... Syndrome #MSK #pathophysiology