RT Journal A1 ROSENBERG N T1 "lipoma" of the spermatic cord: Potential relationship to indirect inguinal hernia in adults JF Archives of Surgery JO Archives of Surgery YR 1979 FD April 1 VO 114 IS 4 SP 549 OP 550 DO 10.1001/archsurg.1979.01370280203038 UL http://dx.doi.org/10.1001/archsurg.1979.01370280203038 AB In children, indirect inguinal hernia is of congenital origin, and is due to incomplete obliteration of the processus vaginalis. No such cause applies to indirect hernia in middle age, since one cannot assume that a congenitally unobliterated peritoneal protrusion would remain quiescent during young vigorous adulthood only to become symptomatic in middle life.An indirect hernia in this age group seems almost universally associated with a spermatic cord lipoma and/or other properitoneal fat adherent to the sac. Such fat tissue is easily deformable, and has almost fluid-like characteristics permitting it to insinuate itself into tissue planes. The internal ring is a channel through the transversalis fascia, and the gradual introduction of fat by internal propulsive forces can widen that pathway. Parietal peritoneum can enter the defect under repeated pressure from above, be dragged into the breach by its adherent fatty pseudopodium, or both.In two studies of recurrent inguinal hernia,