BACKGROUND Retrorectal cystic hamartomas, or tailgut cysts, are rare congenital lesions that typically present as presacral masses. These lesions are frequently clinically unrecognized and misdiagnosed. Malignant change is extremely rare. Only 10 additional cases with associated malignancy were recovered from the literature. We describe the clinicopathologic features of 5 cases, including 2 cas...

etrorectal cystic hamartoma are rare tumors of developmental origin usually diagnosed as an incidental finding in adult patients. We present such a case in a 33-year-old lady who presented with acute retention of urine. Ultrasound abdomen showed a retrorectal cystic mass (15 x 10 cm), which, was confirmed on computerized tomography (CT) scan. Exploratory laparotomy via a lower midline incision ...

different opinions exit in histological typing of bone cysts. epidermoid cysts are very rare as the small numbers of published cases indicate. they arises following preceding trauma exclusively in distal phalanges and skull. the roentgenogram shows a round osteolytic resion with no trabecular pattern. we observed 2 cases of epidermoid cyst of finger in imam khomeini hospital central path depart...

BACKGROUND Transanal endoscopic microsurgery (TEM) was originally designed for local endoscopic excision of benign and low-grade mucosal rectal lesions through an endoscopic system. The procedure is particularly challenging for submucosal and retrorectal lesions, as the tumor margins are not well defined. OBJECTIVE To investigate patient and surgical characteristics of TEM as a treatment for ...

abstract hydatid disease is caused by echinococcus spp. especially echinococcus granulosus that is the most common cause of hydatid disease in humans. this disease occurs either through direct contact with infected dogs or indirectly from the ingestion of contaminated water or food with eggs of worms. the most common site in human is the liver (59-75%), followed in frequency by lung (27%), kidn...

Objective: To report a rare case of urachal remnant cyst mimicking benign ovarian cyst.