May Be Caused by

 Common

Air bubbles

Crohn disease

Cronkhite-Canada syndrome

Food particles

Nodular lymphoid hyperplasia

Normal lymphoid follicles

Polyposis syndrome

Seeds

 Uncommon

A-beta-lipoproteinemia

Amebiasis

Amyloidosis

Cystic fibrosis

Eosinophilic enteritis

Heavy chain disease

Histoplasmosis

Hyperplastic Peyer patches

Intestinal lymphangiectasia

Mastocytosis

Mycobacterial enteritis

Typhoid fever

Ulcerative colitis

Waldenström macroglobulinemia

Whipple disease

Yersinia enterocolitis