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[A-leukemic caecal myeloid sarcoma: a difficult diagnosis].

Marie-Cécile Nollevaux·Monique Delos·Henri Noël·Anne Sonet·Alain Rosière·Ivan Théate
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Abstract

Myeloid sarcoma is a malignant neoplasia composed of abnormal myeloid or monocytic cells, often localized in bones, but also rarely in extra-medullary sites such as lymph nodes, skin and soft tissue. We report a case of caecal myeloid sarcoma, diagnosed in a 60 year old woman who complained from abdominal pain and weight loss, in absence of any medullary disorder. Initially misdiagnosed as a B lymphoma because of a weak positivity for CD79a, the diagnosis of primitive caecal myeloid sarcoma was eventually established after further investigations showing a positivity for lysozyme and myeloperoxidase. This report of such a rare clinical and pathological presentation of a myeloid sarcoma underlines a difficult differential diagnosis for which adequate immunohistochemistry, including lysozyme and myeloperoxydase is mandatory.

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Abdominal PainAntigens, CDCD79 AntigensCecal NeoplasmsDiagnosis, DifferentialFemaleHumansImmunohistochemistryLeukemia, MyeloidMiddle AgedMuramidasePeroxidaseReceptors, Antigen, B-CellWeight LossCase ReportsJournal Article

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Marie-Cécile Nollevaux, Monique Delos, Henri Noël, Anne Sonet, Alain Rosière, Ivan Théate. 2004. [A-leukemic caecal myeloid sarcoma: a difficult diagnosis].. https://doi.org/10.1016/s0242-6498(04)94000-x

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