Please use this identifier to cite or link to this item: http://hdl.handle.net/10201/17843

Title: Blastic OKT6-positive proliferation preceding malignant histiocytosis
Issue Date: 1986
Publisher: Murcia : F. Hernández
ISSN: 0213-3911
Related subjects: CDU::6 - Ciencias aplicadas::61 - Medicina
Keywords: Malignant histiocytosis
Immunohistochemistry
Abstract: A 45-year old male presented latero-cervical lymphoadenopathy. Biopsy revealed a malignant proliferation of immature "lymphoid" cells bearing T6 antigen and HLA-DR but negative for other lymphoid markers, suggesting a phenotype similar to Langerhans cells. The patient did not receive any therapy and six months later developed a histologically typical malignant histiocytosis, involving spleen and liver. Other reported cases of lymphoid malignancies (two bearing the 7'6 antigen on blast cells) preceding malignant histiocytosis were found and compared with ours. Most of these cases were characterized by the pediatric age of the patients and were presented as acute leukemias exhibiting, in at least some of them, reliable T-cell markers. Our case appears to represent, on the other hand, a blastic proliferation of precursors of both histiocytes and Langerhans dendritic cells which eventually progressed to malignant histiocytosis. The relevance of this observation in the debate on the origin of Langerhans cells and the relationships existing between macrophages and dendritic cells is discussed.
Primary author: Bonetti, F.
Chilosi, M.
Menestrina, F.
Lestani, M.
Scarpa, A.
Todeschini, G.
Pizzolo, G.
Fioredonati, L
Published in: Histology and histopathology
URI: http://hdl.handle.net/10201/17843
Document type: info:eu-repo/semantics/article
Number of pages / Extensions: 7
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:Vol. 1, nº 4 (1986)

Files in This Item:
File Description SizeFormat 
Blastic OKT6positive proliferation preceding malignant histiocytosis.pdf3,94 MBAdobe PDFView/Open


Items in Digitum are protected by copyright, with all rights reserved, unless otherwise indicated.