Unusual solitary rectal relapse of mantle cell lymphoma after second remission

Mantle cell lymphoma is a rare type of B cell non-Hodgkin's lymphoma (NHL) comprising only 3%–6% of all NHL. It is aggressive and prone to relapse. Around 15%–30% of the patients present with gastrointestinal tract involvement. Solitary rectal mantle cell lymphoma is rare and there are very few reports of the same. Till date, there is no report of a solitary rectal relapse of mantle cell lymphoma occurring after second remission. We report a relapse of solitary rectal mantle cell lymphoma presenting with rectal bleeding after second remission in primary gastric mantle cell lymphoma.