136 results
Important Causes of Diplopia 
TIER 1-CRITICAL
Basilar artery thrombosis, Botulism, Basilar meningitis, Aneurysmn
TIER 2-EMERGENT:
Vertebral dissection, Myasthenia gravis,
Important Causes ... , Orbital apex syndrome ... URGENT: Brainstem tumor ... Miller-Fisher syndrome ... differential #diagnosis #ophthalmology
Secondary causes of Hypertension
 • Medications, Drugs, Chemo: NSAIDS, Steroids, CNI, Alcohol, Cocaine, OCP, Licorice, MAOI,
Secondary causes ... Other Endocrine causes ... Renin producing tumor ... low renin HTN causes ... Deoxycorticosterone tumor
Tumor lysis syndrome (TLS) - Pathophysiology:
→ Massive tumor cell lysis
→ Release of large amounts of K+,
Tumor lysis syndrome ... (TLS) - Pathophysiology ... : → Massive tumor ... #TumorLysis #syndrome ... #TLS #Pathophysiology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
• Optic Nerve Tumor ... Midbrain (Parinaud's Syndrome ... ): • Tumor • ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Pathophysiology of Tumor Lysis Syndrome (TLS)
Tumor Cell Lysis
-> Release of DNA
 • Purines -> Hypoxanthine /
Pathophysiology ... of Tumor Lysis Syndrome ... (TLS) Tumor Cell ... #TumorLysis #Syndrome ... #TLS #Pathophysiology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
SAME, Cushing Syndrome ... Renin secreting tumor ... diuretics, Bartter syndrome ... , Gitelman syndrom ... Diagnosis #Algorithm #causes
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... Defining the cause ... , Gitelman's syndrome ... Renin-secreting tumor ... diagnosis #algorithm #causes
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... ) • 45, XO Turner ... Mayer-Rokitansky-Küster-Hauser ... Irradiation • Tumor ... Diagnosis #Algorithm #Causes
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Lysis Syndrome ... Leukostasis: • Pathophysiology ... high WBC count cause ... hyperviscosity syndrome ... • Pathophysiology
Causes of Anterior Uveitis - Differential Diagnosis
Anterior Uveitis - 90% of cases of Uveitis
 • Inflammation
Causes of Anterior ... Posner-Schlossman Syndrome ... Behcet's, SLE, TINU syndrome ... HIA B27-related syndrome ... #ophthalmology