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hematoma vs. blood clot

hematoma

[hee-ma-toh-muh, hem-uh-] / ˌhi mæˈtoʊ mə, ˌhɛm ə- /

noun

Pathology.

a circumscribed collection of blood, usually clotted, in a tissue or organ, caused by a break in a blood vessel.

blood clot

[bluhd klot] / ˈblʌd ˌklɒt /

a mass of coagulated blood, as within a blood vessel or at the site of an open wound.