13 results
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Skin Ulcers by Etiology ... Differential Diagnosis Algorithm ... • Bleomycin Hematologic ... Thalessemia • Cryoglobulinemia ... Viral - Herpes simplex
Cryoglobulinemia Classification Types

Type 1: Monoclonal IgM (rarely IgG/lgA)
 • Raynaud phenomenon, Digital ulcers/gangrene, Livedo reticularis, Hyperviscosity
Cryoglobulinemia ... Classification ... phenomenon, Digital ulcers ... #Classification ... #Types #hematology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
nodules, Deep ulcers ... Vasculitis: • Immune Complex ... Urticarial/LCV) - Cryoglobulinemic ... Vasculitis #skin #dermatology ... #rheumatology #
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Genital Skin Ulcers ... Differential Diagnosis Algorithm ... Painful: • Herpes simplex ... painless #genitals #Ulcers ... ulcerative #skinrash #dermatology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Cryoglobulinemia ... deposit of immune complexes ... Purpura - Skin ulcers ... diagnosis #types #classification ... #rheumatology #
Oral Skin Ulcers - Differential Diagnosis Algorithm
Single Ulcer:
 • Traumatic ulcer
 • Angular ulcer
 • Aphthous
Differential Diagnosis Algorithm ... • Herpes simplex ... stomatitis • Herpes simplex ... mouth #SkinRash #dermatology ... Differential #Diagnosis #Algorithm
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
immunofluorescence Immune Complex ... Lupus Nephritis, Cryoglobulinemia ... differential #diagnosis #algorithm ... #rheumatology
Genital Lesions - Differential Diagnosis Algorithm
Elevated - Vesicles:
 • Herpes simplex
Elevated - Papules / Plaques -
Differential Diagnosis Algorithm ... Depressed - Erosions/Ulcers ... Depressed - Erosions/Ulcers ... #skinlesions #dermatology ... Differential #Diagnosis #Algorithm
Cryofibrinogenemia Summary

Cryofibrinogenemia Epidemiology:
 • 40-70 years with a modest female predominance

Cryofibrinogenemia:
 • The precipitation of a
precipitating complex ... vasculitis, sepsis or cryoglobulinemia ... sensitivity • Painful ulcers ... Calciphylaxis • Cryoglobulinemia ... #hematology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tracts Immune Complex ... ANCA +MPO) • Cryoglobulinemic ... livedo reticularis, ulcers ... genital aphthous ulcers ... #classification