Cystic hygroma of unusual sites: report of two cases.

Cystic hygroma is the cystic variety of lymphangiomas. Its common site is cervico-facial region, followed by axilla, superior mediastinum, mesentery and retroperitoneal region. Its occurrence in upper extremity is rarely reported, whereas its location at sternum has not been reported before. We report two cases of cystic hygroma occurring at unusual sites.