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WHO Classification of Tumours
Myeloid sarcoma
Nasal cavity and Sinuses


Definition

Myeloid sarcoma is defined as a tumour mass consisting of myeloid blasts that occurs at a site other than the bone marrow (BM), most frequently skin, lymph node, gastrointestinal tract, bone, soft tissue and testis. The median age is 56 years at clinical manifestation and the prognosis is unfavourable
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Swerdlow SH, Campo E, Harris NL, Jaffe ES, Pileri SA, Stein H, Thiele J, Vardiman JW (Eds.)
WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues
4th Edition
International Agency for Research on Cancer: Lyon 2008



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