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We commend Kulkarni et al. (1) on their description of a rare case of aberrant splenic artery aneurysm treated with a combination of stent graft and coil embolization. Indeed, aneurysm of splenic artery is a protean disease as for the origin, location, size and clinical manifestations. Furthermore, what appears to be initially a splenic aneurysm can exceptionally turn out to be another vascular lesion as happened to us.In fact, a 74-year-old man with a history of prostate cancer was recently diagnosed as having an aneurysm of 1.7 × 2 cm arising from a short gastric artery on a surveillance CT scan (Fig. 1). Superselective arteriography confirmed the aneurysmatic nature of the lesion (Fig. 2): transcatheter angiographic embolization was attempted twice but failed. At this point, the patient was referred for surgical repair: at laparoscopy, a brown, well-encapsulated, hypervascular lesion was observed in the greater omentum on the left side of the stomach and excised after ligation of its feeding pedicle. Histological and immunochemical features revealed benign hemangiopericytoma of the greater omentum (no mitosis or necrosis along with an immunoprofile positive for CD34 and bcl-2). At 14-month follow-up, the patient appears free from recurrent disease

RE: Hemangiopericytoma of the Greater Omentum: A Potential Imaging Pitfall and Cause of Repeatedly Unsuccessful Angiographic Embolization