The infrequency of the mesenteric, or enterogenous, cyst and the obscurity of the symptoms are indicated by citing the statement of Miller,1 that but thirtyfive cases were reported up to 1913, and in none of the cases was the diagnosis made prior to operation or necropsy.
The etiology remains clouded, diverse views still obtaining, chiefly expressed as dilatations of mesenteric lymphatics and sequestration of the enteric canal. Briefly stated, the histologic characters differ somewhat; the cyst wall is devoid of mucous membrane in several of the reported cases, and these have fostered the opinion that the growth is entirely mesenteric. In the majority, however, the lining of the cyst bears a close resemblance to the epithelium of the intestine, even to the extent of containing villi and muscle fibers. The tumor is invariably congenital and situated at the mesenteric attachment of the small intestine. By some it is believed
WHITE CS. MESENTERIC, OR ENTEROGENOUS, CYST. JAMA. 1920;74(7):440–442. doi:10.1001/jama.1920.02620070008004