RESUMO
Waldenström macroglobulinemia is an indolent B-cell lymphoproliferative disorder. When there is involvement of the central nervous system, Waldenström macroglobulinemia is known as Bing-Neel syndrome. We present a case of Bing-Neel syndrome in a patient who presented with confusion and left orbital pain. 18F-FDG PET/CT was utilized in making the diagnosis.
Assuntos
Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Macroglobulinemia de Waldenstrom/diagnóstico por imagem , Idoso , Humanos , Masculino , Dor/complicações , Macroglobulinemia de Waldenstrom/complicações , Macroglobulinemia de Waldenstrom/patologiaRESUMO
We describe the histological and immunohistochemical features of the changes produced by spiral coil localization wires in the breast parenchyma and lymph nodes of a total of 100 patients undergoing surgery for different breast lesions. Coil wires produced cystic lesions containing a hyaline, mucous-like, PAS-negative fluid. Cavities were lined by cells of variable morphology ranging from synovial-like cells (with a conspicuous epithelial appearance) to mononuclear or multinucleate histiocytic cells that expressed CD68, but were negative for keratins. CD3-positive/CD8-positive T lymphocytes predominated in the inflammatory reaction. Pathologists should be aware of these changes in order to differentiate coil-related lesions from other granulomatous or epithelial lesions, including mucocele-like and ductal carcinoma in situ lesions.
