morgagnian cyst

[môr-gänyē-ən]
n.
  1. A fluid-filled cyst that is attached to the fimbriated end of the uterine tube or to the upper end of the testis and is a remnant of the embryonic mesonephric duct.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.