hematoma

hematoma /he·ma·to·ma/ (he″mah-to´mah) a localized collection of extravasated blood, usually clotted, in an organ, space, or tissue.

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subdural hematoma  a massive blood clot beneath the dura mater that causes neurologic symptoms by pressure on the brain.

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he·ma·to·ma (hm-tm)

n. pl. he·ma·to·mas or he·ma·to·ma·ta (-m-t)

A localized swelling filled with blood resulting from a break in a blood vessel.

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Hematoma

A localized collection of blood that accumulates in an organ, tissue, or body space as the result of leakage from a broken blood vessel. Hematomas sometimes develop within the nasal cartilage when the nose is fractured.

Mentioned in: Atherectomy, Bone Marrow Aspiration and Biopsy, Computed Tomography Scans, Face Lift, Joint Fluid Analysis, Nasal Trauma, Pelvic Exam, Shaken Baby Syndrome

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hematoma

[hē′mətō′mə, hem′-] pl. hematomas, hematomata

Etymology: Gk, haima + oma, tumor

a collection of extravasated blood trapped in the tissues of the skin or in an organ, resulting from trauma or incomplete hemostasis after surgery. Initially there is frank bleeding into the space; if the space is limited, pressure slows and eventually stops the flow of blood. The blood clots, serum collects, the clot hardens, and the mass becomes palpable to the examiner and is often painful to the patient. A hematoma may be drained early in the process and bleeding arrested with pressure or, if necessary, with surgical ligation of the bleeding vessel. Considerable blood may be lost, and infection is a serious complication. Also spelled haematoma.

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hematoma (hēˈ·m·tōˑ·m),

n an accumulation of clotted blood that develops within an open body space, organ, or tissue as a result of damage to a blood vessel.

Hematoma.

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hematoma (hē´mtō´m),

n a mass of blood in the tissue as a result of trauma or other factors that cause the rupture of blood vessels.

Hematoma.

hematoma, subdural,

n a collection of extravasated blood trapped below the dural membranes of the brain causing pressure on the brain, resulting in pain and neural dysfunction. It may be life threatening.

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hematoma

a localized collection of extravasated blood, usually clotted, in an organ, space or tissue. Contusions (bruises) are familiar forms of hematoma that are seldom serious. Hematomas can occur almost anywhere on the body; they are almost always present with a fracture and are especially serious when they occur inside the skull, where they may produce local pressure on the brain. In minor injuries the blood is absorbed unless infection develops.

For regional hematomas of individual importance see under anatomical name, e.g. ear, penile, vaginal, brain, ethmoid.

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haematoma

A swelling containing blood. It may result from injury (e.g. black eye) or from some blood disease, such as leukaemia. Note: also spelt hematoma.

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hematoma

A tumor-like mass produced by coagulated blood in a cavity. See Cerebral hematoma, Epidural hematoma.

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Patient discussion about hematoma.

Q. What is hematoma?

A. Hematoma is a localized collection of blood, usually clotted, in a tissue or organ. Hematomas can occur almost anywhere on the body. In minor injuries, the blood is absorbed unless infection develops. Contusions (bruises) and black eyes are familiar forms of hematoma. Less serious types include subungual hematoma (under a fingernail or toenail); hematoma auris (in the tissues of the outer ear, better known as cauliflower ear); and perianal hematoma (under the skin around the anus). For the rest of this article: http://www.healthscout.com/ency/68/677/main.html

This may help also:
http://en.wikipedia.org/wiki/Hematoma

Hope this helps.