title: Persistent pigmented purpuric eruption associated with mycosis fungoides: a case report and review of the literature.
abstract: A purpuric eruption may be an unusual early manifestation of mycosis fungoides (MF). On the other hand, persistent pigmented purpuric dermatoses (PPPD) may, occasionally, evolve to cutaneous T-cell lymphoma. Coexistence of these two conditions has been reported, but it is extremely rare. We present the case of an elderly woman with a long-standing pruritic, pigmented purpuric eruption. On 1-year follow-up, histological features suggesting early MF were observed and molecular analysis of the rearrangement of T-cell receptor genes revealed clonality. Our patient may represent a case of PPPD evolving to MF, a case of MF clinically featuring PPPD, or an intermediate condition in a nosological continuity extending from PPPD to MF. A persistent pigmented purpuric eruption may rarely be a harbinger of cutaneous T-cell lymphoma. Therefore, vigilant long-term follow-up of PPPD is highly recommended.
authors.affiliation: National University of Athens, Department of Dermatology and Venereology, A. Sygros Hospital, Greece.
authors.forename: S
authors.initials: S
authors.lastname: Georgala
authors.forename: A C
authors.initials: AC
authors.lastname: Katoulis
authors.forename: S
authors.initials: S
authors.lastname: Symeonidou
authors.forename: C
authors.initials: C
authors.lastname: Georgala
authors.forename: G
authors.initials: G
authors.lastname: Vayopoulos
mesh_terms: D005260:Female; D006801:Humans; D008875:Middle Aged; D009182:Mycosis Fungoides / Q000150:complications* / Q000473:pathology; D011693:Purpura / Q000150:complications* / Q000473:pathology; D012878:Skin Neoplasms / Q000150:complications* / Q000473:pathology