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1.
Rev. méd. Chile ; 137(2): 269-274, feb. 2009. ilus, tab
Article in Spanish | LILACS | ID: lil-516094

ABSTRACT

Histiocytic sarcoma (HS) is a rare malignant neoplasm of the lymphohematopoietic system, that occurs in lymph nodes, skin and at extranodal sites, particularly the gastrointestinal tract. Although it shows characteristics histoiogical and immunohistochemical features, it may be misdiagnosed. We report a 67 year-old female patient presenting with colicky abdominal pain and vomiting. A CT sean of the abdomen revealed a tumor in the ileum, that was surgically removed. On pathology, the neoplastic cells displayed large abundant eosinophilic cytoplasm, with bizarre-shaped nuclei, that expressed CD 45, CD 68 and lisozyme. The diagnosis of HS requires the use of a panel of immunohistochemical markers and may be supported by ultrastructural findings .


Subject(s)
Aged , Female , Humans , Histiocytic Sarcoma/pathology , Ileal Neoplasms/pathology , Histiocytic Sarcoma/therapy , Ileal Neoplasms/therapy , Lymph Nodes/pathology
3.
Arch. argent. dermatol ; 39(2): 89-96, mar.-abr. 1989. ilus
Article in Spanish | LILACS | ID: lil-95803

ABSTRACT

La Reticulosis Medular Histiocítica constituye una neoplasia maligna generalmente fatal en un período corto de tiempo. Los histiocitos atípicos invaden hueso, médula ósea, higado, bazo, intestino, meninges, piel agregando nosotros laringe, localización no referida en la bibliografia consultada. Las lesiones cutáneas constituyen el 10-13% del compromiso general; consisten en tumores queratósicos ulcerados, distribuidos en tronco y miembros. Los métodos inmunohistoquimicos (lisozima, alfa, antitripsina, S-100) son actualmente otro elemento importante de diagnóstico, siendo como en nuestro caso positivos tanto en laringe como piel. La evolución es mala, falleciendo en poco tiempo por sobreinfecciones o bien hemorragias. Nuestra paciente respondió satisfactoriamente a la quimioterapia instituida, en un período de dos años de control.


Subject(s)
Humans , Adult , Female , Histiocytes/pathology , Histiocytic Sarcoma/pathology , Histiocytes/enzymology , Histiocytes/physiology , Histiocytic Sarcoma/diagnosis , Histiocytic Sarcoma/therapy , Lymphatic Diseases/classification , Lymph Nodes/pathology
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