Nodular primary localized cutaneous amyloidosis: presentation of 2 case reports and literature review

Abstract

The nodular primary localized cutaneous amyloidosis is rare and characterized by skin deposition of amyloid substance. There are cases of progression to invasive disease. The type of amyloid substance is not specific to this disease, also being found in primary systemic amyloidosis and systemic amyloidosis associated with multiple myeloma. The authors describe two cases of nodular primary localized cutaneous amyloidosis. A 70-year-old man underwent excision of papule on the mouth left commissure, and a 39-year-old woman with a vulva’s labia majora swelling that was excised, in which the histology revealed a nodular amyloidosis, both without systemic involvement. Although the prognosis is benign, the follow-up of the patient is required for early detection of a possible evolution to systemic disease, or exclusion of an underlying systemic amyloidosis.

Keywords

• amiloidosis cutánea primaria
• amiloidosis
• sustancia amiloide