Fig. 1From: A rare serious case of retroperitoneal paraganglioma misdiagnosed as duodenal gastrointestinal stromal tumor: a case reportAxial abdomen C.T with I. V contrast shows 9 × 7.3 × 6.5 cm well defined heterogeneous retroperitoneal mass with peripheral enhancement and central necrosis mimic 4th segment duodenal GIST (white arrow)Back to article page