28 results
Pupils: Localization in Coma
 • Small, Reactive pupils: Metabolic coma.
 • Unilateral Fixed, dilated pupil :
Bilateral, Large ... • Bilateral, midposition ... • Horner's syndrome ... Localization #Coma #Neurology ... #differential #
Peripheral Edema - Differential Diagnosis Framework for Lower Extremity Edema

Edema occurs when any of the following
Peripheral Edema - Differential ... Peripheral #Edema #differential ... #Bilateral #Lower ... #Extremity #PhysicalExam ... #Pathophysiology
Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Hypertension - BP > 140/90 (>130/80 for DM)
Hypertensive urgency
Hypertension - Differential ... • Nephritic syndrome ... • Bilateral RAS ... HTN #Secondary #Nephrology ... #Differential #
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
dissociaton; • Usually unilateral ... Holmes-Adie Syndrome ... Young females Differential ... #Adies #Pupil #PhysicalExam ... #neurology #ophthalmology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... dysfunction, and bilateral ... dorsum of foot and lateral ... Myotomes #diagnosis #neurology ... sensory #motor #leg #physicalexam
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
(TIA): • Lateral ... medullary syndrome ... Wallenberg syndrome ... Central #Causes #differential ... #diagnosis #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Sciatica: often bilateral ... constipation Differential ... Examination - bilateral ... #differential # ... diagnosis #causes #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... involved - Bilateral ... (more commonly bilateral ... #lesions #differential ... #diagnosis #neurology
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Metabolic Alkalosis: Differential ... hyperaldosteronism (unilateral ... adenoma/ bilateral ... Metabolic #Alkalosis #Differential ... Diagnosis #Causes #nephrology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
of Hemiplegia - Differential ... extremity findings Unilateral ... Brown-Sequard Syndrome ... #Hemiplegia #Neurology ... #Differential #