Korean J Lab Med.  2009 Aug;29(4):282-285. 10.3343/kjlm.2009.29.4.282.

A Case of Histiocytic Sarcoma Diagnosed by Bone Marrow Biopsy in a Patient Suffering from Fever for 8 Months

• Jang YH
• Park CJ
• Huh JR
• Jang S
• Chi HS

• KMID: 1096919
• DOI: http://doi.org/10.3343/kjlm.2009.29.4.282

Abstract

Histiocytic sarcoma is a malignant proliferation of cells showing morphologic and immunophenotypic features similar to those of mature tissue histiocytes and is known for its rapid progression and poor prognosis. We describe a case of histiocytic sarcoma diagnosed by bone marrow biopsy. A 64-yr-old male was admitted for fever and weight loss that persisted for 8 months. The patient died undiagnosed on the 7th hospitalization day. A bone marrow biopsy performed just before the patient's death revealed diffuse proliferation of large pleomorphic neoplastic cells with large, round to oval nuclei, vesicular chromatin, and abundant foamy cytoplasm. These cells were positive for histiocytic markers, CD68, lysozyme, CD21, and S-100 protein, but negative for B-cell, T/NK-cell, and epithelial cell markers, thus confirming the presence of histiocytic sarcoma.

Keyword

Histiocytic sarcoma; Bone marrow biopsy; Immunohistochemistry

MeSH Terms

Antigens, CD/metabolism
Antigens, CD31/metabolism
Antigens, Differentiation, Myelomonocytic/metabolism
Bone Marrow/*pathology
Fever/diagnosis
Histiocytic Sarcoma/*diagnosis/pathology/radiography
Humans
Male
Middle Aged
Muramidase/metabolism
S100 Proteins/metabolism
Tomography, X-Ray Computed

Figure

• 

  Fig. 1. Morphologic and immunohistochemical features of the peripheral blood and bone marrow specimen. (A) Rouleaux formation in the peripheral blood smear (Wright stain, ×1,000). (B) Biopsy specimen showing high cellularity, diffuse fibrosis, and large pleomorphic neoplastic cells (H&E stain, ×400). (C) Biopsy specimen showing CD31+ (immunohistochemistry, ×400). (D) Biopsy specimen showing CD68+ cells (immunohistochemistry, ×400). (E) Biopsy specimen showing lysozyme-positive cells (immunohistochemistry, ×400). (F) Biopsy specimen showing S100 protein-positive cells (immunohistochemistry, ×400).

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