5848 results
Proptosis - Differential Diagnosis - Unilateral vs Bilateral
Unilateral:
 • Infections (can become bilateral with cavernous sinus
- Differential Diagnosis ... bilateral with cavernous ... Infections (with cavernous ... - Carotid cavernous ... #Differential #Diagnosis
Priapism: Pathogenesis

 - Post-cavernosal venous occlusion -> Post-cavernosal venous drainage is mechanically obstructed e.g. sickle cell
nitric oxide from cavernous ... pools in corpora cavernosa ... Pathophysiology #Urology #Diagnosis
Diplopia - Differential Diagnosis
Step 1: Consider Stroke
Step 2: Diplopia PLUS
 - Cavernous Sinus Syndrome
 - Infection
- Differential Diagnosis ... Diplopia PLUS - Cavernous ... #Differential #Diagnosis
Pulsatile Exophthalmos on Physical Exam - Protrusion and Pulsation of the eyeball

The differential diagnosis of pulsatile
The differential diagnosis ... neurofibromatosis, carotid-cavernous
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
One-and-a-half Syndrome • Cavernous ... #differential #diagnosis
Important Causes of Diplopia 
TIER 1-CRITICAL
Basilar artery thrombosis, Botulism, Basilar meningitis, Aneurysmn
TIER 2-EMERGENT:
Vertebral dissection, Myasthenia gravis,
apex syndrome, Cavernous ... #differential #diagnosis
Tolosa-Hunt Syndrome
What?
 • Unilateral orbital/retrobulbar pain
 • Paresis of the cranial nerves Ill, IV, VI
 •
inflammation of the cavernous ... TolosaHunt #neurology #diagnosis
Multiple Cranial Neuropathies - High Yield Differential Diagnosis
 • Intrinsic brainstem process
 • Compressive brainstem process
Yield Differential Diagnosis ... brainstem process • Cavernous ... #Differential #Diagnosis
Clinical Effects of Large and Small Pituitary Tumours
Local complications - Headache, Visual field defect, Disconnection hyperprolactinaemia,
hyperprolactinaemia, Diplopia (cavernous ... Signs #Symptoms #Diagnosis
Differential Diagnosis for Vision Loss
Unilateral, Painful Vision Loss:
 • Corneal abrasion, Acute angle-closure glaucoma, Inflammation-iritis, uveitis,
Differential Diagnosis ... Endophthalmitis, Cavernous ... #differential #diagnosis