Case report of pancreatic dermoid cyst: can fine needle aspiration make the diagnosis?
BACKGROUND
Pancreatic dermoid cysts are rare, benign, germ cell tumors and part of the differential diagnosis for cystic neoplasms of the pancreas.


METHODS
A 35-year-old man presented with an incidentally discovered, 2 cm cystic pancreatic neoplasm of the pancreatic tail identified on CT scan. Endoscopic ultrasound (EUS) revealed a complex, honeycomb lesion. Fine needle aspiration (FNA) yielded a sample of whitish, necrotic material containing histiocytes, benign epithelial cells, and lymphocytes. After distal pancreatectomy and splenectomy was performed, histology revealed a cyst lined by stratified squamous epithelium with benign sebaceous units consistent with a pancreatic dermoid cysts.


CONCLUSIONS
Although axial imaging reliably detects cystic neoplasms of the pancreas, diagnostic criteria for rare lesions are lacking; therefore alternative modalities such as EUS/FNA can be utilized. This case report highlights the EUS and FNA findings associated with pancreatic dermoid cysts.
Division of Surgical Oncology, Department of Surgery, University of Missouri-Columbia. Columbia, MO, USA. dlyons9715@gmail.com.
Daniel A
DA
Lyons
Emily A
EA
Coberly
Ghassan M
GM
Hammoud
Michael B
MB
Nicholl
D000328:Adult; D044963:Biopsy, Fine-Needle; D003884:Dermoid Cyst / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D061765:Endoscopic Ultrasound-Guided Fine Needle Aspiration; D006801:Humans; D008297:Male; D010179:Pancreas / Q000473:pathology / Q000601:surgery; D010180:Pancreatectomy; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D012680:Sensitivity and Specificity; D013156:Splenectomy; D014057:Tomography, X-Ray Computed