Periumbilical perforating pseudoxanthoma elasticum.

A 58-year-old, gravida 6, obese woman presented with a pruritic yellowish plaque around the umbilicus, which first appeared about 3 years ago. She also had flat yellow papules on the axilla and neck. After a burn from a heating device, a few perforating papules and a violaceous hue occurred on the plaque. Histological examination revealed pathological elastic fibers with a keratotic plug and perforation in the deep dermis, which was consistent with perforating pseudoxanthoma elasticum. This case indicates that perforating pseudoxanthoma elasticum, a variant of hereditary pseudoxanthoma elasticum may perforate due to mechanical factors.

A Case of Perforating Calcific Elastosis in a Multiparous Women after Laparoscopic Surgery / 대한피부과학회지

Perforating calcific elastosis is a localized cutaneous acquired disorder most frequently in obese, multiparous, middle-aged women. We report a case of perforating calcific elastosis in a 66-year-old multiparous woman who had asymptomatic yellowish cobblestoned plaque with keratotic papules scattered on its surface in the periumbilical region. She have been treated to laparoscopic surgery 5 years ago. The biopsy specimen showed basophilic calcified elastic fibers in the dermis that undergo transepidermal elimination. The von Kossa stain showed dense deposition of calcium in this area.

Two case of perforating calcific elastosis / 대한피부과학회지

Perforating calcific elastosis, referred to as periumbilical perforating pseudoxanthoma elasticum that can occur in middle-aged, multiparous, obese women with a possible genetic predisposition to pseudoxanthoma elasticum. We report two cases which showed the clinical and histopathologic fundings of perforating calcific elastosis in a 77 year-old and; 69 year-old woman. Clinically, the losio is were well-demarcated, yellow to brownish hyperpigmentcd and verrucous plaques with discreted ratotic papules just above the umbilicus. Histopathologically, altered basophilic calcified elastic fiber were extruded through the hyperplastic epidermis to the surface of the skin and were present in the eticular dermis.