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Granulocytic sarcoma (GS) is an extramedullary manifestation of acute myeloid leukemia (AML), myelodysplastic syndrome (MDS) or myeloproliferative neoplasms. The diagnosis depends on morphology, immunohistochemistry and flow cytometry. An unusual location of this tumor may mask its primary source, therefore, a strategy involving immediate symptom control, and investigation is crucial in preventing clinical deterioration. We present a case of a 53-year-old man who initially presented with tumor lysis syndrome and transaminitis, with a subsequent CT Scan that revealed multiple liver lesions. This case describes a rare clinical entity of granulocytic sarcoma as multiple hypoattenuating liver lesions mimicking metastatic disease in its radiographic appearance. Since the imaging features of hepatic masses are nonspecific, and considering the aggressive nature of AML with concomitant tumor lysis syndrome, a confirmatory prompt biopsy should routinely be considered.

Liver Granulocytic Sarcoma With Megakaryocytic Differentiation: A Rare Extra Medullary Involvement That Warrants Liver Biopsy for Prompt Diagnosis