16 results
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Algorithm. ... disruption of vascular ... . 2) When cutaneous ... commonly renal and ... #Dermatology #Rash
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Algorithm Physical ... • Radiation Vascular ... insufficiency • Vasculitis ... Mycosis fungoides (cutaneous ... Ulcers #ulcerative #skinrash
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Vesiculobullous Skin Rash ... Algorithm Vesicles ... Bullous systemic lupus ... drug eruption #Vesicular ... Vesiculobullous #SkinRash
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
bullous or vesicular ... mucositis - Rash ... aphthous ulcers, cutaneous ... such as systemic lupus ... strong sign of cutaneous
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
NPSLE rare, Malar rash ... Rare (SSA+ for cutaneous ... Manifestations: Malar rash ... #sle #comparison ... #rheumatology #diagnosis
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
response -> Subacute cutaneous ... plugging -> Discoid Rash ... Malar (butterfly) Rash ... Livedo Reticularis, Vasculitis ... pathophysiology #diagnosis
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential Diagnosis ... Algorithm Pinpoint ... Disruptions in vascular ... (lupus, RA, Sjogren's ... for hepatitis B and
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
scarring • Subacute cutaneous ... Differential Diagnosis ... ANCA-associated vasculitis ... Vasculitis: • ... Erythematosus #Diagnosis
Cutaneous larva migrans skin Rash
25 F recent Caribbean vacation, walked barefoot on sand and now with
Cutaneous larva ... rash. diagnosis ... self-limited Diagnosis ... larva #migrans #skinRash ... dermatology #clinical #photo
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Vascular Sludging ... Labs/Diagnosis: ... Henoch-Schönlein purpura) • Cutaneous ... (e.g. systemic lupus ... Cryoglobulins #diagnosis