Akademik

A cystic swelling containing a serous fluid, such as housemaid's knee, etc. SYN: hydroma. [hygro- + G. -oma, tumor]

- h. axillare h. of the axillary region.

- cervical h. a benign cystic overgrowth of lymphatics of the neck, present at birth, which may form a large tumor-like mass. SYN: h. colli cysticum.

- h. colli cysticum SYN: cervical h..

- cystic h. fetal malformation of fluid accumulations, usually around the neck and shoulders; may be simple or complex; often associated with Turner syndrome.

- subdural h. accumulation in the subdural space of proteinaceous fluid, usually derived from serum, or of cerebrospinal fluid due to a tear in the arachnoid membrane.

hy·gro·ma hī-'grō-mə n, pl -mas also -ma·ta -mət-ə a cystic tumor of lymphatic origin

a type of cyst. It may develop from a lymphangioma (cystic hygroma) or from the liquified remains of a subdural haematoma (subdural hygroma).