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hematoma vs. blood clot

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

noun

Pathology.
  • hematomas,
    plural
  • hematomata
    plural

  1. 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 /

noun

  • blood clots
    plural

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