RESUMO
Abstract Secondary osteoma cutis is a phenomenon that may occur in several conditions. When it occurs in a melanocytic nevus it is named osteonevus of Nanta, an event considered uncommon and characterized by the presence of bone formation adjacent or interposed with melanocytic cells. There are reports of its occurrence in various melanocytic lesions, being more frequently associated with intradermal nevus. We report a case of osteonevus of Nanta in combined nevus, possibly the first description of this association.
Assuntos
Humanos , Feminino , Adulto , Dermatoses do Couro Cabeludo/patologia , Dermatopatias Genéticas/patologia , Neoplasias Cutâneas/patologia , Doenças Ósseas Metabólicas/patologia , Ossificação Heterotópica/patologia , Nevo Intradérmico/patologia , Nevo Pigmentado/patologia , Dermatoses do Couro Cabeludo/cirurgia , Dermatopatias Genéticas/cirurgia , Neoplasias Cutâneas/cirurgia , Doenças Ósseas Metabólicas/cirurgia , Imuno-Histoquímica , Ossificação Heterotópica/cirurgia , Nevo Intradérmico/cirurgia , Melanócitos/patologia , Nevo Pigmentado/cirurgiaRESUMO
Secondary osteoma cutis is a phenomenon that may occur in several conditions. When it occurs in a melanocytic nevus it is named osteonevus of Nanta, an event considered uncommon and characterized by the presence of bone formation adjacent or interposed with melanocytic cells. There are reports of its occurrence in various melanocytic lesions, being more frequently associated with intradermal nevus. We report a case of osteonevus of Nanta in combined nevus, possibly the first description of this association.
Assuntos
Doenças Ósseas Metabólicas/patologia , Nevo Intradérmico/patologia , Nevo Pigmentado/patologia , Ossificação Heterotópica/patologia , Dermatoses do Couro Cabeludo/patologia , Dermatopatias Genéticas/patologia , Neoplasias Cutâneas/patologia , Adulto , Doenças Ósseas Metabólicas/cirurgia , Feminino , Humanos , Imuno-Histoquímica , Melanócitos/patologia , Nevo Intradérmico/cirurgia , Nevo Pigmentado/cirurgia , Ossificação Heterotópica/cirurgia , Dermatoses do Couro Cabeludo/cirurgia , Dermatopatias Genéticas/cirurgia , Neoplasias Cutâneas/cirurgiaRESUMO
Primary localized cutaneous nodular amyloidosis is a rare plasma cell dyscrasia in which an amorphous material consisting of light chain amyloid is produced and deposited in the dermis, with varied clinical presentation. We describe the case with unusual and tumor lush clinical presentation in the face with no progression to systemic disease and no evidence of extracutaneous commitment.
Assuntos
Amiloidose Familiar/patologia , Derme/patologia , Dermatoses Faciais/patologia , Dermatopatias Genéticas/patologia , Adulto , Amiloidose Familiar/cirurgia , Derme/cirurgia , Dermatoses Faciais/cirurgia , Humanos , Masculino , Recidiva , Dermatopatias Genéticas/cirurgia , Resultado do TratamentoRESUMO
Basaloid follicular hamartoma is a rare, benign and superficial malformation of hair follicles, characterized histologically by epithelial proliferation of basaloid cells with radial disposition. It can be mistaken for basal cell carcinoma. Even though these hamartomas are considered benign lesions, malignant transformation has rarely been reported. We report the case of a 45-year-old healthy woman, with linear, unilateral basaloid follicular hamartoma which developed inflamed papules histologically suggestive of basal cell carcinoma. We believe that identification of local inflammation could be a clinical clue to guide us towards a malignant transformation of basaloid follicular hamartoma.