Qualitative Assessment of Diffusion Weighted Imaging and Susceptibility Weighted Imaging of Myeloid Sarcoma Involving the Brain

Conclusions: In patients with history of leukemia or myeloproliferative disorder, identification of homogenous mass hyperdense on unenhanced CT, T1 isointense, and T2/fluid-attenuated inversion recovery hyperintense with restricted diffusion and homogenous postcontrast enhancement without significant susceptibility artifact is suggestive of myeloid sarcoma.
Source: Journal of Computer Assisted Tomography - Category: Radiology Tags: Neuroradiology Source Type: research

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We report a case of a 30-year-old man with a urinary bladder mass, which was consistent with myeloid sarcoma with t(8;21). The importance of myeloid sarcoma of the bladder is that it could be misdiagnosed and must be differentiated from other poorly differentiated bladder tumors composed of round cells, mainly because it is a malignant neoplasm with a good response to treatment, which does not require surgery.
Source: Pathology Case Reviews - Category: Pathology Tags: Case Reviews Source Type: research
Hematological malignancies can manifest as extramedullary soft tissue masses in relatively rare cases. The rarity of it causes a diagnostic and therapeutic challenge. One of the rarest manifestations is myeloid sarcoma (MS). MS develops as part of acute myeloid leukemia, myeloproliferative neoplasm, or myelodysplastic syndrome or at relapse, especially following allogeneic hematopoietic stem cell transplant. The tumor displays high myeloperoxidase expression, hence the color green, and is called chloroma. It most commonly appears in lymph nodes, skin and soft tissues, bone, testes, gastrointestinal tract, and peritoneum. I...
Source: Oncology Research and Treatment - Category: Cancer & Oncology Source Type: research
SUMMARY Granulocytic sarcoma also called myeloid sarcoma is an extramedullary tumour of immature granulocytic cells. It is a rare entity, and mostly accompanied by acute myeloid leukaemia. It is observed during the course of myeloproliferative disorders especially in chronic myeloid leukaemia and myelodysplastic syndromes. Here, we report a case of a 60-year-old male with past history of myelofibrosis admitted to the emergency room due ulceronecrotic lesions, fever and dysphagia. We emphasize the importance of recognizing this entity and its severity.RESUMO O sarcoma granuloc ítico, também chamado de sarcoma ...
Source: Revista da Associacao Medica Brasileira - Category: General Medicine Source Type: research
SUMMARY Granulocytic sarcoma also called myeloid sarcoma is an extramedullary tumour of immature granulocytic cells. It is a rare entity, and mostly accompanied by acute myeloid leukaemia. It is observed during the course of myeloproliferative disorders especially in chronic myeloid leukaemia and myelodysplastic syndromes. Here, we report a case of a 60-year-old male with past history of myelofibrosis admitted to the emergency room due ulceronecrotic lesions, fever and dysphagia. We emphasize the importance of recognizing this entity and its severity.RESUMO O sarcoma granuloc ítico, também chamado de sarcoma ...
Source: Revista da Associacao Medica Brasileira - Category: General Medicine Source Type: research
Aggressive systemic mastocytosis (ASM), mast cell leukemia (MCL) and mast cell sarcoma (MCS) are rare, life-threatening mast cell disorders, characterized by an aggressive clinical course, drug resistance and a poor survival. Established disease-modifying therapies include interferon-alpha (INF-A), cladribine (2CdA) and midostaurin (PKC412). However, these treatment approaches are unable to exert curative effects in advanced mastocytosis. Intensive therapy, including poly-chemotherapy and hematopoietic stem cell transplantation (HSCT) have also been suggested for patients with rapidly progressing ASM and MCL (Ustun et al, ...
Source: Blood - Category: Hematology Authors: Tags: 634. Myeloproliferative Syndromes: Clinical: Poster I Source Type: research
We report a case of myeloid sarcoma with megakaryoblastic differentiation in the breast of a patient with history of essential thrombocythemia. The mass was composed of undifferentiated pleomorphic malignant cells in trabecular cords and nests with many scattered giant malignant cells and brisk abnormal mitoses. On immunohistochemistry, the neoplastic cells were positive for CD61, CD31, CD34, Factor VIII and CD43 which confirmed the diagnosis. To our knowledge, this is the first report of myeloid sarcoma with megakaryoblastic morphology occurring in the breast. Here we discuss the clinicopathologic features of this rare en...
Source: Hematology Oncology and Stem Cell Therapy - Category: Cancer & Oncology Source Type: research
This report describes a 75-year-old male with a known history of AML who developed both AIFS and myeloid sarcoma. Several months after successful treatment for biopsy proven AIFS, this patient developed a new soft tissue mass of the nasal septum. A new biopsy was obtained which revealed infiltrating blast cells with evidence of monocytic differentiation diagnostic of myeloid sarcoma. Given symptoms of severe nasal obstruction, this patient received palliative radiotherapy to the nasal septum, which provided temporary improvement prior to the patient succumbing to his underlying malignancy. We review the existing reports of...
Source: Journal of Hematopathology - Category: Pathology Source Type: research
We report a case of myeloid sarcoma with megakaryoblastic differentiation in the breast of a patient with history of essential thrombocythemia. The mass was composed of undifferentiated pleomorphic malignant cells in trabecular cords and nests with many scattered giant malignant cells and brisk abnormal mitoses. On immunohistochemistry, the neoplastic cells were positive for CD61, CD31, CD34, Factor VIII and CD43 which confirmed the diagnosis. To our knowledge, this is the first report of myeloid sarcoma with megakaryoblastic morphology occurring in the breast. Here we discuss the clinicopathologic features of this rare en...
Source: Hematology Oncology and Stem Cell Therapy - Category: Cancer & Oncology Source Type: research
This report describes a 75-year-old male with a known history of AML who developed both AIFS and myeloid sarcoma. Several months after successful treatment for biopsy proven AIFS, this patient developed a new soft tissue mass of the nasal septum. A new biopsy was obtained which revealed infiltrating blast cells with evidence of monocytic differentiation diagnostic of myeloid sarcoma. Given symptoms of severe nasal obstruction, this patient received palliative radiotherapy to the nasal septum, which provided temporary improvement prior to the patient succumbing to his underlying malignancy. We review the existing reports of...
Source: Journal of Hematopathology - Category: Pathology Source Type: research
ConclusionDe novo myeloid sarcoma mostly presented isolated. Lesions were often localized at skin and lymph nodes. Genetic aberrations frequently involved coreā€binding factor rearrangements in de novo cases and a complex karyotype in secondary cases.This article is protected by copyright. All rights reserved.
Source: European Journal of Haematology - Category: Hematology Authors: Tags: Original Article Source Type: research
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