111 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... Sarcoidosis or Lofgren's syndrome ... #Differential # ... Diagnosis #Dermatology
Uveitis - Definition, Causes and SUN Classification

Inflammation of the iris, ciliary body, vitreous, retina and/or choroid
Incidence
/year per 100,000 ... inhabitants 3rd leading cause ... retinal ischemia Causes ... Classification #Differential ... #Diagnosis #Ophthalmology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
Pupillary Defects - Differential ... Syphilis (light-near ... Midbrain (Parinaud's Syndrome ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Mucous Membrane Disorder - Differential Diagnosis Algorithm
Erosions/Ulcers/Blisters
 - Primary Dermatologic Diseases
     •
Membrane Disorder - Differential ... Stevens-Johnson Syndrome ... • Behcet's syndrome ... #Differential # ... Diagnosis #Algorithm #causes
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Skin Ulcers - Differential ... ) • Behcet's syndrome ... ulcerative #skinrash #dermatology ... #Differential # ... Diagnosis #Algorithm #causes
Conductive Hearing Loss - Differential Diagnosis Algorithm

Normal Otoscopy - Middle Ear:
 • Otosclerosis
 • Congenital (Ossicular
Hearing Loss - Differential ... Tumors (SCC) • Dermatologic ... Middle Ear: ... #HearingLoss #Differential ... Diagnosis #Algorithm #Causes
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
6mm); • Light-near ... Holmes-Adie Syndrome ... Young females Differential ... dissociation • Other causes ... PhysicalExam #neurology #ophthalmology
Dizziness - Central and Peripheral Causes - Differential Diagnosis
Central Causes:
 • Cerebrovascular:  vertebrobasilar, TIA, Wallenburg,
- Differential ... canal dehiscence syndrome ... • Cogan's syndrome ... Amy Chung, MD, MSc ... #Differential #
Causes of Anterior Uveitis - Differential Diagnosis
Anterior Uveitis - 90% of cases of Uveitis
 • Inflammation
Uveitis - Differential ... Posner-Schlossman Syndrome ... HIA B27-related syndrome ... Anterior #Uveitis #Differential ... #ophthalmology
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
) - Differential ... - Ramsay Hunt syndrome ... Nerve V: • TMJ syndrome ... the tragus to differentiate ... Otolaryngology #differential