perforating calcific elastosis perforating calcific elastosis perforating calcific elastosis is an acquired, localized cutaneous disorder, most frequently found in obese, multiparous, middle-aged women, characterized by lax, well-circumscribed, reticulated or cobble-stoned plaques occurring in the periumbilical region with keratotic surface papules. perforating calcific elastosisother nameslocalized acquired cutaneous pseudoxanthoma elasticum, perforating periumbilical calcific elastosis, and periumbilical perforating pseudoxanthoma elasticumhistopathology of perforating calcific elastosis: clumping of short elastic fibers in the dermis.specialtydermatology