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hygroma
(hi-gro´mә)
pl. hygromas, hygro´mata
an accumulation of fluid in a sac, cyst, or bursa. adj., hygrom´atous., adj.
cystic hygroma
, hygroma cysticum
an endothelium-lined, fluid-containing lesion of lymphatic origin, encountered most often in infants and children and occurring
in various regions of the body, most commonly in the posterior triangle of the neck, behind the sternocleidomastoid muscle
(hygroma colli cysticum).

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