18 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... : 'signet ring sign ... emphysema: no walls, central ... #Cysts #Differential ... #Comparison #Table
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Causes of Dizziness ... Diagnosis Algorithm ... Bone Fracture Central ... neurologic symptoms/signs ... #Causes
Causes of Cystic Renal Mass - Differential Diagnosis Algorithm
Benign - Anechoic on ultrasound, Well-demarcated on ultrasound/CT,
Causes of Cystic ... Diagnosis Algorithm ... Carcinoma - No signs ... #RenalMass #Nephrology ... #Causes
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Hypochloremia - Differential ... Diagnosis Algorithm ... - Gitelman SIGNS ... #Diagnosis #Algorithm ... Pathophysiology #Nephrology
Ascites - Diagnostic Approach and Differential Diagnosis
The most common causes: cirrhosis, malignancy and heart failure. Approx
most common causes ... more than one cause ... dullness, puddle sign ... Analysis: 1) General ... fluid; brown: elevated
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
with vascular causes ... #Vertigo #diagnosis ... #findings #signs ... #symptoms #comparison ... #neurology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Diagnosis Algorithm ... Auspitz sign, Koebner's ... shaped) lesion with elevated ... scaling, red border, central ... #causes
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Bacterial Meningitis - Differential ... pleocytosis • A mildly elevated ... pleocytosis with an elevated ... Acute meningeal signs ... #diagnosis #neurology
Generalized Seizures and Pseudoseizures
Generalized seizures "are conceptualized as originating as some point within, and rapidly engaging,
generalized or a general ... seizure caused ... Classification #Diagnosis ... #Neurology #Signs ... #Symptoms #Comparison
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Causes of Peripheral ... and Central Vertigo ... varying neurologic signs ... #differential # ... diagnosis #neurology