A case of multiple recurrent intussusceptions due to multiple lymphomatous polyposis associated with diffuse large B-cell lymphoma of gastrointestinal tract in a 15-year-old child: A rare case report

Synchronous diffuse large B-cell lymphoma masquerading as jejunojejunal intussusception with unexplained pleural effusion in elderly male: A rare manifestation

“…Multiple primary malignant tumors are defined as the detection of two or more malignancies in an individual person [1,2] In particular, synchronous primary malignancy is extremely rare [2][3][4][5]. The GI tract is the most common site of extra-nodal lymphoma involvement.…”

“…Lymphoma of the small intestine is the most common part of the ileum, followed by the jejunum and duodenum [10]. The most common identification site is the ileocolon region [1,2,5,8,[11][12][13][14]. The vast majority of GILs are NHLs, DLBCL, mucosa-associated lymphoid tissue lymphomas (MALTomas), although Hodgkin lymphoma about one-third of NHL has been reported.…”

“…About 90% of cases of intussusception in children arise from unknown causes [4,15], which include infections, anatomical factors and altered motility. Only 10% of which is secondary to specific pathological lesions such as Meckel's diverticulum, polyps, and benign or malignant tumor [1,8]. The most small bowel lead points are benign lesions, and malignant lesions account for 30% of intussusception cases [1][2][3][4].…”

“…Only 10% of which is secondary to specific pathological lesions such as Meckel's diverticulum, polyps, and benign or malignant tumor [1,8]. The most small bowel lead points are benign lesions, and malignant lesions account for 30% of intussusception cases [1][2][3][4].…”

“…Obstruction and perforation are rare and life-threatening complications of GIL. Multiple intestinal intussusception caused by synchronous DLBCLs of the jejunum is extremely rare [1,8,16,17]. Secondary lymphoma pleural involvement (secondary pleural lymphoma) is common and occurs in about 20% of lymphomas.…”