31 results
Diabetic Retinopathy: Pathogenesis and clinical findings

Mild Non-proliferative DR
 • Outpouchings of the weakened capillary walls or
into the deeper retinal ... to significant retinal ... • Localized retinal ... ischemia causes ... macula, and/or retina
Marcus Gunn Pupil - Relative Afferent Pupillary Defect (RAPD)
Definition: Afferent loop of the pupillary light reflex
Relative Afferent Pupillary ... Afferent loop of the pupillary ... Optic nerve* (main cause ... ), Retina, Macula ... #Defect #RAPD #neurology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
Isocoria - Pupillary ... - Differential Diagnosis ... Nerve Tumor • Retinal ... #Algorithm #Causes ... #Ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
unilateral; • Slow pupillary ... females Differential Diagnosis ... dissociation • Other causes ... #Adies #Pupil #PhysicalExam ... #neurology #ophthalmology
Argyll Robertson Pupil
Definition:
 - Irregular and small (1-2mm) pupil
 - Light-near dissociation (accommodation remains intact)
 -
bilateral - Abscent pupillary ... Robertson #Pupil #neurology ... #diagnosis #ophthalmology ... #physicalexam
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
parietal lobe • Retina ... (Many causes!) ... * (most common cause ... Wonderland #Syndrome #diagnosis ... #neurology #differential
Relative Afferent Pupillary Defect

This maneuver of intermittent light stimulus is called the alternating light test or
Relative Afferent Pupillary ... very sensitive diagnostic ... regarding the cause ... #Defect #Neurology ... Pupils #MacrusGunn #PhysicalExam
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
- Differential Diagnosis ... → Diagnostic of ... embolism • AVM • Papillary ... #causes #urology ... #nephrology #renal
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
GI Losses - Gastric
 • Vomiting
 • NG suction
GI
Causes of Metabolic ... - Differential Diagnosis ... MetabolicAlkalosis #NonGap #Nephrology ... #Differential #Diagnosis ... #Algorithm #Causes
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... - Differential Diagnosis ... renovascular HT, Renin-secreting ... #differential #diagnosis ... #nephrology #potassium