Papular xanthoma: a clinicopathological study of 10 cases.

Background: Papular xanthoma (PX) is one of several clinicopathologic variants of normolipemic cutaneous non-Langerhans cell histiocytoses (n-LCH). PX represents a monomorphous reaction pattern of n-LCH characterized by the presence of predominantly xanthomatized macrophages.

Objective: The purpose of this study was to identify the clinical, histological and immunohistochemical characteristics of PX.

Schönlein-Henoch purpura during pregnancy with successful outcome for mother and newborn.

Background: Schönlein-Henoch purpura is a systemic vasculitis that affects vessels of a small caliber and rarely reported in the literature.

Case Presentation: We report on a 35-year-old woman who developed palpable purpura with necrotizing cutaneous lesions on the lower limbs at 27 weeks of gestation. She also complained of epigastric pain and arthralgias.

Isolation and polymerase chain reaction typing of Borrelia afzelii from a skin lesion in a seronegative patient with generalized ulcerating bullous lichen sclerosus et atrophicus.

A 64-year-old woman presented with bullous and ulcerating lichen sclerosus et atrophicus (LSA) on the neck, trunk, genital and perigenital area and the extremities. Histology of lesional skin showed the typical manifestations of LSA; in one of the biopsies spirochaetes were detected by silver staining. Despite treatment with four courses of ceftriaxone with or without methylprednisone for up to 20 days, progression of LSA was only stopped for a maximum of 1 year.

Isolation of Borrelia afzelii from circumscribed scleroderma.

A 45-year-old man presented with circumscribed scleroderma (CS) on the extremities. Histology of lesional skin showed the typical manifestations of scleroderma including a perivascular and interstitial infiltrate of lymphocytes and plasma cells; in one of the biopsies spirochaetes could be detected. Despite treatment with penicillin, progression of CS was observed and spirochaetes were isolated from skin cultures obtained from active scleroderma lesions.

Pseudoporphyria cutanea tarda induced by furosemide in a patient undergoing peritoneal dialysis.

We report on a 32-year-old female patient undergoing peritoneal dialysis for diabetic nephropathy who developed blisters and cutaneous fragility on the dorsa of the hands. Histopathology of an early lesion showed a subepidermal cleft under a regular epidermis with single necrotic keratinocytes and normal dermal structures. In an advanced lesion, a subepidermal bulla and caterpillar bodies were found in the epidermis.

Juvenile hyaline fibromatosis: impaired collagen metabolism in human skin fibroblasts.

Juvenile hyaline fibromatosis (JHF) is inherited as a fatal autosomal recessive disorder characterised by multiple tumorous mucocutaneous proliferations. In this paper a 14 month old girl with JHF is described. For this condition, a malfunction of collagen synthesis is considered as the pathogenetic cause.

Cutaneous malakoplakia on the forehead.

A case of cutaneous malakoplakia in an 81-year-old woman in reported. A reddish slowly growing plaque had appeared on her forehead 13 years previously. Histopathology revealed a dense dermal granulomatous infiltrate consisting of lymphocytes and numerous histiocytes containing Michaelis-Gutmann bodies.