CT AND US FINDINGS OF PANCREATOBLASTOMA

Purpose: Our goal was to evaluate US and CT findings of pancreatoblast oma. Method: Three US and four CT scans before surgery and one follow- up CT after surgery were reviewed in four patients (two female, two ma le) with pathologically proven pancreatoblastoma. The mean age of the patients was 4 years (range 2-5 years). The masses were analyzed for o rigin, US and CT architecture, presence of calcification, enhancement pattern, and metastatic spread. Results: In two patients, the tumors a rose from the pancreatic head and in one patient from the pancreatic t ail. The mean largest diameter of the masses was 10 cm, ranging from 5 to 14 cm. Sonography obtained from three cases showed mixed echogenic solid mass. On the CT scan, all tumors were huge, lobulated masses wi th heterogeneous attenuation. One tumor contained numerous foci of cal cification. On the enhanced CT scan, three tumors showed multiloculate d appearance by enhancing internal septations. There was no evidence o f metastasis to distant organ or abdominal lymph node in any case. Con clusion: We suggest that the most common US finding of pancreatoblasto ma is a mixed echogenic, solid mass inseparable from the pancreas, and the most common CT finding is a relatively well defined, lobulated, h uge mass with multiloculated appearance by enhancing septae in or near the lesser sac.