title: An unusual presentation of macular amyloidosis.
abstract: Macular amyloidosis is a form of cutaneous amyloidosis characterized by dusky-brown lesions usually located on the upper back between the shoulder blades. This report describes the case of a 45 year-old female presenting with hyperpigmented macules and lace-like, non-pruritic erythema in the sacral and cervical region as well as on both arms and legs. Histology revealed amyloid deposits in the papillary dermis which exhibited apple-green birefringence after Congo red staining. There were no systemic findings. This is a case of macular amyloidosis with an unusual presentation. The literature on the subject is also reviewed.
authors: Centro de Dermatologia Dona Libânia, Fortaleza, CE, Brasil.
authors: Bárbara Lima Araújo
authors: BL
authors: Melo
authors: Igor Santos
authors: IS
authors: Costa
authors: Clara de Assis Martins
authors: Cde A
authors: Goes
authors: Celina Aguiar Frota
authors: CA
authors: Tigre
authors: Nara Frota
authors: NF
authors: André
mesh_terms: D000686:Amyloidosis / Q000473:pathology*; D004396:Coloring Agents; D003224:Congo Red; D005260:Female; D006801:Humans; D008875:Middle Aged; D012875:Skin Diseases, Metabolic / Q000473:pathology*
chemical_list: D004396:Coloring Agents; D003224:Congo Red