Science Fair Project Encyclopedia
Hematoma
A hematoma, or haematoma, is a collection of blood, generally the result of hemorrhage. Hematomas exist as bruises (ecchymoses), but can also develop in organs.
Hematomas can gradually migrate, as the extravasated cells and pigment move in the connective tissue. For example, a patient who hurts the base of his thumb might cause an hematoma which will slowly move all through the finger within a week. Gravity is the main determinant of this process.
Hematomas on articulations can reduce mobility of a member and present roughly the same symptoms as a fracture.
Types
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details