Mesenteric cyst

A mesenteric cyst (MeSH C04.182.473) is a cyst in the mesenterium, and is one of the rarest abdominal tumors, with approximately 822 cases reported since 1507.^[1] The incidence is between 1 per 100,000 to 1 per 250,000 hospital admissions.^[1]

Tillaux's triad named after the French surgeon Paul Jules Tillaux can be seen in cases of mesenteric cyst. It consists of the following signs:^[2]

• a fluctuating swelling near the umbilicus
• freely mobile in the direction perpendicular to the attachment of mesentery
• on percussion: zone of resonance—i.e., band of bowel resonance (due to loop of bowel in front of cyst) and dull note behind due to fluid inside the cyst

It is basically^{[clarification needed]} of two types:

1. Chylolymphatic, the most common type: thin wall, lined by flat endothelium, clear chylous fluid present, separate blood vessels
2. Enterogenous: thick wall, lined by columnar, mucinous fluid present common blood supply

Treatments:

1. Chylolymphatic cyst: Enucleation
2. Enterogenous cyst: Excision of cyst along with resection and anastomosis of part of bowel that shares common blood supply with the cyst

References

1. Liew, S. C.; Glenn, D. C.; Storey, D. W. (1994). "Mesenteric cyst". The Australian and New Zealand Journal of Surgery. 64 (11): 741–744. doi:10.1111/j.1445-2197.1994.tb04530.x. PMID 7945079.
2. Goel, Trilok Chandra; Goel, Apul (2016-12-21). Lymphatic Filariasis. ISBN 9789811022579.