Plasmacytoma rectum extending to para-rectal region

Abstract

Solitary plasmacytoma most commonly presents in bone (80%), while extramedullary plasmacytoma (EMP) is an uncommon (20%) entity that most commonly involves nasopharynx or upper respiratory tract. Involvement of the gastrointestinal tract occurs in approximated 10% of EMP cases, in that also solitary EMP of the rectum is an exceedingly rare entity. Here we are presenting a case of 55-year-old male patient who was diagnosed to have EMP of rectum in September 2012 who was initially operated in which de-bulking surgery with abdominoperineal resection was done with large residual lesion postoperatively. Then patient was treated with postoperative radiotherapy (RT) with conventional portals 40 Gy in 20 fractions with complete response at 3 months. Patient was followed-up until now (1 year and 2 months post-RT), without any symptom or recurrence.