Pathol. [mod.L., a. Gr. ἐκχύμωμα; see next.] A tumor formed by an effusion of blood under the skin.

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1541.  R. Copland, Guydon’s Quest. Chirurg., 2 H iij. Such rupcyons be with ecchymosis or ecchymonia [sic].

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1684.  trans. Bonet’s Merc. Compit., V. 139/1. When the Ecchymoma … was just turning to an Abscess, I opened it.

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1876.  Duhring, Dis. Skin, 329. Ecchymomata consist of extensive extravasations, which appear in the form of tumors.

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