21 results
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
0.5mm downgoing ST ... Equivalents / Don't Miss Signs ... have no pain - LAD ... avR - proximal LAD ... Interpretation #differential
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Cystic LCH: - LAM ... : 'signet ring sign ... emphysema: no walls, central ... Cystic #Cysts #Differential
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Dizziness - Vertigo - Differential ... Bone Fracture Central ... symptoms/signs, ... Dizziness #Vertigo #Neurology ... #Differential #
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Elevation - Differential ... STE: "Pardee's sign ... ventricle pacing lead ... (Eiffel Tower sign ... Segment #Elevation #differential
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Polydipsia • Central ... Exogenous solute load ... #Polyuria #Differential ... Algorithm #causes #nephrology
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
anterior sail sign ... posterior fat pad ... can't make A-OK sign ... Management: Pain control ... II-IV, pending orthopedic
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Peripheral and Central ... CENTRAL VERTIGO ... signs or symptoms ... #Peripheral #Central ... Vertigo #Causes #differential
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
anterior sail sign ... posterior fat pad ... Management: Pain control ... II-IV, pending orthopedic ... Diagnosis #Management #Orthopedics
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... lesions of the central ... Lack of UMN/LMN signs ... #Weakness #Differential ... #Diagnosis #neurology
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
to Headaches - Differential ... lyme • Altered mental ... • Meningeal signs ... Systemic symptoms and signs ... Diagnosis #Algorithm #neurology