Hamid Tabrizchi; Shahriar Dabiri; Alireza Soutodehnejad; Bahram Azadeh; Malcolm M.M. Hayes
Volume 2, Issue 1 , January 2007, , Pages 41-44
Abstract
Localized Leishmania Lymphadenitis (L.L.L) is a self limited clinical presentation of cutaneous leishmaniasis. Microscopic findings in L.L.L are very similar to Toxoplasma lymphasenitis. In all cases, an intensive microscopic search should be done for Leishman bodies. In this study, we describe our microscopic ...
Read More
Localized Leishmania Lymphadenitis (L.L.L) is a self limited clinical presentation of cutaneous leishmaniasis. Microscopic findings in L.L.L are very similar to Toxoplasma lymphasenitis. In all cases, an intensive microscopic search should be done for Leishman bodies. In this study, we describe our microscopic findings and results of our immnohistochemical (IHC) study with a panel of monoclonal antibodies against T-Cells, B-Cells, histiocytes, Langerhans cells, and dendritic reticulum cells. Morphologic and immunohistochemical study in this case showed expanded paracortical tissue with many small clusters of epithelioid histiocytes and large reactive B follicles. Immature sinus histiocytosis in subcapsular and trabecular sinuses was also seen.
Hamid Tabrizchi; Mahnaz Yazdanpanah; Behjat Kalantarie Khandani; Esmat Mozaffari
Volume 1, Issue 4 , September 2006, , Pages 181-184
Abstract
Myeloid sarcoma of female breast is a rare presentation of acute myeloid leukemia (AML). The tumor mass may precede or occur concurrently with AML, CML, myeloproliferative disorders, and/or myelodysplastic syndromes. Histologically, it looks like a large cell lymphoma and can be misdiagnosed. A case ...
Read More
Myeloid sarcoma of female breast is a rare presentation of acute myeloid leukemia (AML). The tumor mass may precede or occur concurrently with AML, CML, myeloproliferative disorders, and/or myelodysplastic syndromes. Histologically, it looks like a large cell lymphoma and can be misdiagnosed. A case referred as a suspected case of large cell lymphoma. Initial morphological study with conventional H and E staining showed diffuse infiltration of pleomorphic large blast cells with occasional mature cells showing eosinophilic cytoplasmic granules. Immunohistochemical study was done on paraffin material for this suspected case of myeloid sarcoma and tumor cell reaction with myeloperoxidase was positive. The histological diagnosis was finalized as myeloid sarcoma. Initial bone marrow aspiration showed less than 20% myeloid blasts but after three weeks the marrow aspiration showed 30% of myeloid blasts. Flow cytometry was also performed and proved the diagnosis of acute myeloid leukemia. It is concluded that in conditions of an unusual case of pleomorphic large cell lymphoma, myeloid sarcoma may be a possibility.
