Lee KC(1), Lee J(1), Kim BH(2), Kim KA(1), Park CM(1).
(1)Dept of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 80 Guro-dong, Guro-gu, Seoul, 152-703, South Korea. (2)Dept of Pathology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, South Korea.
Publication
Ir Med J
Summary
Here we report the case of a 46-year-old patient with a desmoid-type fibromatosis (DF) mimicked a large cystic tumor in the retroperitoneum. Ultrasonography and computed tomography were performed in order to search for localizations and characteristics of the cystic tumor. Radiological findings showed an oval cystic mass with a relatively thick wall, measuring 18.3?×?12.3?×?21.5 cm in the left upper abdomen. Laparoscopic spleen-preserving distal pancreatectomy was performed and histopathological examination by immunohistochemical study enabled us to diagnose a DF invading the pancreatic parenchyma. The patient remained asymptomatic during an 8-month follow up period. DF can manifest as a mainly cystic mass with a thick wall, as in our case, which makes the correct diagnosis difficult. DF should be included in the preoperative differential diagnosis of a cystic retroperitoneal mass, regardless of its rarity.
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