marsupialization

(medicine) Surgical evacuation of pancreatic, hydatid, and other cysts when complete removal and closure are not possible.

To form a pouch surgically to treat a cyst when simple removal would not be effective, such as in a pancreatic or a pilonidal cyst. Under anesthesia, the cyst sac is opened and emptied. Its edges are sutured to adjacent tissues, and a drain is left in place. Over a period of several months, secretions will decrease and the sac space will be reduced until it is completely filled. See also operation, Partsch’s.

Surgical alteration of a cyst or similar enclosed cavity by making an incision and suturing the flaps to the adjacent tissue, creating a pouch.

Conversion of a closed cavity, such as an abscess or cyst, into an open pouch, by incising it and suturing the edges of its wall to the edges of the wound. The urinary bladder and prostatic cysts are treated similarly.