[hi″dro-mi-o´mah] a leiomyoma with cystic degeneration.
hy·dro·my·o·ma
(hī'drō-mī-ō'mă) A leiomyoma that contains cystlike foci of proteinaceous fluid; hydromyomas occur more frequently in leiomyomas of the uterus, as a result of degenerative changes. [hydro- + G. mys, muscle, + -oma, tumor]