76 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Sarcoidosis or Lofgren's syndrome ... TB Viral: HSV ... , EBV, HIV, HepB ... , Syphilis Parasitic ... Mnemonic #Causes #Differential
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Negative Abscess - Differential ... SAPHO, Sweet's Syndrome ... Auto-Inflammatory: SAPHO syndrome ... Negative #Abscess #Differential ... #Diagnosis #InfectiousDiseases
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Thrombocytopenia - Differential ... etc) - Viral: HIV ... Bacterial: Sepsis - Parasitic ... antiphospholipid syndrome ... Thrombocytopenia #Differential
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
BEE Syndromes - ... pachymeningitis • HIV ... recessive—Usher syndrome ... MS • Other • Syndromes ... aura #BEE #Syndromes
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Encephalopathy - Differential ... paraneoplastic syndromes ... Infectious (fungal, TB, parasitic ... complications of HIV ... Encephalopathy #Differential
Causes of Myocarditis
Infectious Etiologies:
 • Viral agents: Adenoviruses, Enteroviruses (coxsackievirus), Herpesviruses (human herpesvirus 6, Epstein—Barr virus),
Hepatitis C virus, HIV ... Parvovirus B19 • Parasitic ... Immunological Syndromes ... Churg-Strauss syndrome ... #Myocarditis #differential
CENTRAL FACIAL / NASAL LESIONS
Bacteria:
 • Leprosy (saddle nose deformity)
 • Tuberculosis (lupus vulgaris)l
 • Endemic
Blastomycosis Parasite ... Trigeminal trophic syndrome ... infections #diagnosis #infectiousdiseases ... #differential
Infectious Causes of Adrenal Insufficiency
Anatomical distribution of vessels to the adrenal makes the gland prone to
Waterhouse-Friderichsen syndrome ... canimorsus • Virus: HIV ... Pneumocystis Jiroveci • Parasites ... Insufficiency #AI #differential ... endocrinology #infectiousdiseases
Causes of Acute Onset Fever - Differential Diagnosis Algorithm
Viral:
 • Rhinovirus
 • Influenza Virus
 • Parainfluenza
Onset Fever - Differential ... Coronavirus • HIV ... eg.malaria) • Other parasites ... Neuroleptic malignant syndrome ... #Fever #Acute #Differential
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in HIV ... / AIDS - Differential ... should be based on clinical ... CNS #Infections #differential ... opportunistic #InfectiousDiseases