Temporal Bone Myeloid Sarcoma

Temporal bone myeloid sarcoma.

A 69-year-old male previously diagnosed with acute myeloblastic leukemia secondary to myelodysplastic syndrome (LMA with dysplasia, karyotype 46XY, and no cytogenetics abnormalities) refractory to treatment (hydroxyurea, cytarabine, mitoxantrone, and azacitidine) presented with right-side otalgia, otorrhea, and deafness with 2 months progression. He had been treated with oral ciprofloxacin, ear...

Temporal Bone Myeloid Sarcoma

Myeloid sarcoma is a rare condition that's caused by the aggregation of immature myeloid cells in leukemic patients. Myeloid sarcoma occurring in the temporal bone more frequently involves the mastoid bone than is the case for metastatic lesions arising from non-systemic malignancies. The disease is difficult to diagnose when it presents with symptoms that mimic otomastoiditis. However, an earl...

Granulocytic sarcoma of the temporal bone.

We report an unusual case of granulocytic sarcoma involving the temporal bone. The occurrence of this tumor usually heralds acute myelogenous leukemia or the onset of the blastic phase of chronic myelogenous leukemia. Recognition of this rare entity is important, because early aggressive chemotherapy can cause regression of the tumor, as in our case, and thus improve patient longevity.

Diagnosis of Myeloid Sarcoma of Female Breast by Routine Microscopic Findings Using Immunohistochemical Method, Bone Marrow Aspiration and Flow Cytometry

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 refe...

Myeloid Sarcoma