Korean J Pancreas Biliary Tract.  2014 Jul;19(3):142-146.

A Case of Epidermoid Cyst in the Intrapancreatic Accessory Spleen Mimicking Pancreas Mucinous Cystic Neoplasm

• Park PH
• Cho JH
• Jang PK
• Han JY
• Lee SI
• Kim YS

Abstract

An epidermoid cyst arising from intrapancreatic accessory spleen (ECIPAS) is a rare disease. Most patients with an ECIPAS are detected incidentally and could be misdiagnosed as a pancreatic cystic neoplasm such as mucinous cystic neoplasm (MCN) or intraductal p ancreatic mucinous neoplasm (IPMN). We described an ECIPAS with high cystic fluid carcinoembryonic antigen (CEA), which was misdiagnosed as a MCN of pancreas. Fifty one-year-old female was presented with a 2 cm sized non-enhancing pancreas cystic mass on the outside CT scan. Endoscpic ultrasonography (EUS) guided aspiration was performed. It showed a 2.3 x 1.9 cm unilocular cyst nearby 1.6 x 1.1 cm homogenous hypoechoic mass in pancreas tail, and cystic fluid CEA was 1564.18 ng/mL. On the basis of EUS results with elevated fluid CEA level, the presumptive diagnosis is likely to MCN of pancreas, and she underwent a laparoscopic distal pancreatectomy. The final pathology was the epidermal cyst in the intrapancreatic accessory spleen.

Keyword

Epidermoid cyst; Intrapancreatic spleen; Pancreas cyst

MeSH Terms

Carcinoembryonic Antigen
Diagnosis
Epidermal Cyst*
Female
Humans
Mucins*
Pancreas*
Pancreatectomy
Pancreatic Cyst
Pathology
Rare Diseases
Spleen*
Tomography, X-Ray Computed
Ultrasonography
Carcinoembryonic Antigen
Mucins