Purpura annularis telangiectoides.
Dermatol Online J
; 18(12): 5, 2012 Dec 15.
Article
in En
| MEDLINE
| ID: mdl-23286795
ABSTRACT
Purpura annularis telangiectoides of Majocchi (PATM) is a clinical variant of pigmented purpuric dermatoses. It is characterized by asymptomatic or mildly pruritic, erythematous, annular patches that vary in size. The patches exhibit central clearing and peripheral cayenne pepper petechiae. It classically occurs on the lower legs but may be more generalized. Histopathologic features include a lymphocytic capillaritis with subsequent capillary leakage and extravasated erythrocytes, which is typical of all pigmented purpuric dermatoses. The pathogenesis of PATM is unknown, but it may uncommonly be associated with underlying diseases such as hematologic disorders and rarely cutaneous T-cell lymphoma. There is no standard effective treatment.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pigmentation Disorders
/
Purpura
/
Erythema
Type of study:
Etiology_studies
Limits:
Aged
/
Female
/
Humans
Language:
En
Journal:
Dermatol Online J
Journal subject:
DERMATOLOGIA
Year:
2012
Document type:
Article
Affiliation country: