Pancreatic pseudocyst

Pancreatic cysts include true cysts, pseudocysts, and cystic tumors. True cysts include congenital simple cysts, polycystic disease, dermoid cysts, retention cysts, etc. The inner wall of the cyst is covered with epithelium. Cystic tumors include cystic adenoma and cystic carcinoma. The cyst wall of a pseudocyst is composed of fibrous tissue and is not covered with epithelial tissue. Clinically, pseudocysts are most common in pancreatic cysts.