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Anais Brasileiros de Dermatologia
On-line version ISSN 1806-4841
MELO, Bárbara Lima Araújo et al. An unusual presentation of macular amyloidosis. An. Bras. Dermatol. [online]. 2011, vol.86, n.4, suppl.1, pp.24-27. ISSN 1806-4841. http://dx.doi.org/10.1590/S0365-05962011000700005.
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 45year-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
Keywords : Amyloidosis; Congo Red; Hyperpigmentation.