(fleb'ō-mī'ō-mă-tō'sis), Thickening of the walls of a vein by an overgrowth of muscular fibers arranged irregularly, intersecting each other without any definite relation to the axis of the vessel. [phlebo- + myoma + G. -osis, condition]
phlebomyomatosis
(flĕb″ō-mī″ō-mă-tō′sĭs) [″ + mys, muscle, + oma, tumor, + osis, condition] Thickening of the tissue of a vein from an overgrowth of muscular fibers.