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

78 yo M with sudden onset
Positive "spot sign ... " on Ocular Ultrasound ... POCUS #Ocular #Ultrasound
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
Tetanus Toxin -> Spores ... Fecal-oral route, virus ... shock • Mumps Virus ... lymph -> Koplik's spots ... peds #pediatrics #pathophysiology
Pathyophysiology - hyperglycemic crises in patients with diabetes 
Key signs/symptoms of HHS/DKA:
Both: Polyuria, polydipsia, weight loss,
Pathyophysiology ... diabetes Key signs ... hypotension) DKA: Short
Prader-Willi Syndrome: Pathogenesis and clinical findings
 • Maternal uniparental disomy: inheriting 2 copies of maternal chromosome
Prader-Willi Syndrome Signs ... fractures • Short ... Syndrome #genetics #pathophysiology
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
activates lipolysis Signs ... deficiency: - Short ... endocrinology #pathophysiology
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
conjunctiva) • Bitot's spots ... #Xeropthalmia #pathophysiology ... ophthalmology #diagnosis #signs
Upper Urinary Tract infection (UUTI): Pathogenesis and Clinical Findings

Predisposing Factors:
 - Immunocompromised, Diabetes,
 - Elderly, Female
Elderly, Female (short ... UrinaryTractInfection #UUTI #Pathophysiology ... #Signs #Symptoms
Acute Otitis Media: Pathogenesis and Clinical Findings (in Children)
Upper Respiratory Tract Infection: 
 - Bacterial: Streptococcus
Respiratory syncytial virus ... #OtitisMedia #pathophysiology ... diagnosis #symptoms #signs
Features of a Sickle Cell Crisis 
Sickle-cell disease - an autosomal recessive blood disorder.
Characterized by red
The underlying pathophysiology ... Parvovirus B 19, a virus ... Crisis #Features #Signs
Lower Urinary Tract Infection: Pathogenesis and Clinical Findings

- Predisposing Factors:  Immunocompromised state, diabetes, elderly, female
elderly, female (short ... causing symptoms Signs ... UrinaryTractInfection #LUTI #Pathophysiology ... #Signs #Symptoms