13 results
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... : Lupus erythematosus ... Examination: • Signs ... Dermatitis (Consider HIV ... #Differential #
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
: HCV infection, ... HBV infection, ... HIV infection ... systemic lupus erythematosus ... (SLE), rheumatoid
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... Systemic lupus erythematosus ... (SLE), Sarcoidosis ... Cancer, Histiocytic disorders ... Paracoccidioides • Viruses: HIV
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
and permanent alopecia ... Differential ... fibromyalgia) • Infections ... ) • Endocrine disorders ... • Nonscarring alopecia
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Splenomegaly - CTD (SLE ... ) - Viral infections ... Associated - SLE ... • HCV, HBV Not
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... to exclude are infections ... purpura: strong sign ... , and SLE) • Urinalysis ... Cryoglobulins • HIV
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Non-neuromuscular disorder ... Lack of UMN/LMN signs ... • Inflammatory disorders ... parainfluenza, Coxsackie, HIV
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... diseases, such as SLE ... purpura: Strong sign ... ischemia • Skin: Erythematous
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
• Bilateral signs ... Evaluate for NMO, SLE ... simplex virus, HIV ... - Sjogren - Vasculitis ... management #neurology #differential
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... Mechanical/degenerative disorders ... noninflammatory Signs ... Parvovirus B19 • HIV ... arthritis • SLE