Subcutaneous fat necrosis of the newborn is an unusual form of panniculitis, with few
cases described in medical literature. The disease affects newborns at term or
post-term, with normal general health. We describe two cases of newborns affected by
the disease. One of them already had lesions since birth. Also, we discuss the use of
puncture for diagnostic assistance.
Primary cutaneous plasmacytoma is a rare disease characterized by monoclonal proliferation of plasma cells in the skin, in the absence of bone or systemic disease. It can be solitary or multiple, the latter being even more rare and presenting a higher mortality rate. We describe the clinical, histopathological and immunohistochemical aspects as well as the evolution of an 87-year-old female patient, diagnosed as having multiple primary cutaneous plasmacytomas. Keywords: Brazil; Lymphoma; Plasmacytoma Resumo: O plasmocitoma cutâneo primário é uma entidade rara, caracterizada pela proliferação monoclonal de plasmócitos na pele, na ausência de doença óssea ou sistêmica. Pode ser único ou múltiplo, sendo esta última forma ainda mais rara e de pior prognóstico. Descreveremos os aspectos clínicos, histopatológicos, imunohistoquímicos e a evolução de um caso de paciente do sexo feminino, 87 anos, com diagnóstico de plasmocitoma cutâneo primário com múltiplas lesões.
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