A 12 years old boy with carcinoma rectum.

Primary gastrointestinal malignancy constitutes approximately 2% of pediatric neoplasm and colorectal carcinoma is the second most common malignancy among them. This is one of the rarer diseases in children. Carcinoma of the rectum must be considered as a differential diagnosis in childhood if patient presents with per rectal bleeding in conjunction with abdominal pain & weight loss. In our article a 12 years old boy with Mucin secreting adenocarcinoma is being presented. The patient presented with incontinence of stool, with abdominal pain and history of swelling of left lower abdomen during defaecation. He got admitted in a district hospital for several times and USG of whole abdomen was done for several times but no abnormality was detected. Later on, by simple digital rectal examination (DRE) he was clinically diagnosed as a case of CA Rectum and eventually, the diagnosis was established by colonoscopy followed by biopsy.