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A hematoma, also spelled haematoma, or blood suffusion is a localized bleeding outside of blood vessels, due to either disease or trauma including injury or surgery ...
Perianal hematoma are caused by the rupture of a small vein that drains blood from the anus. [4] This rupture may be the result of forceful or strained bowel movement, anal sex or caused by heavy lifting, coughing or straining. Once the rupture has formed, blood quickly pools within a few hours and, if left untreated, forms a clot. [citation ...
People on these medications can have a subdural hematoma after a relatively minor traumatic event. Another cause can be a reduction in cerebrospinal fluid pressure, which can reduce pressure in the subarachnoid space, pulling the arachnoid away from the dura mater and leading to a rupture of the blood vessels. [10]
Retroperitoneal hematoma, retroperitoneal hemorrhage ... It can be caused by major trauma or by non-traumatic mechanisms. ... a ruptured aortic aneurysm. [5]
Longitudinal section showing rupture of the tunica albuginea with an adjacent 1.92 cm hematoma (between calipers), due to trauma. [ 2 ] B: Axial T2-weighted turbo spin-echo magnetic resonance imaging scan showing left-sided discontinuity of the tunica albuginea (arrow), secondary to fracture.
Small or minor injuries often heal spontaneously, especially in children. Larger injuries hemorrhage extensively, often causing hemorrhagic shock. A splenic hematoma sometimes ruptures, usually in the first few days, although rupture can occur from hours to even months after injury. [1]
More rarely, hematoma can result from breast biopsy. Rarely, a breast hematoma can also occur spontaneously due to a rupture of blood vessels in the breast, especially in persons with coagulopathy [ 1 ] [ 2 ] or after long-term use of blood-thinning drugs such as aspirin or ibuprofen.
Spleen is the most common cause of massive bleeding in blunt abdominal trauma to a solid organ. Spleen is the most commonly injured organ. A laceration of the spleen may be associated with hematoma. [13] Because of the spleen's ability to bleed profusely, a ruptured spleen can be life-threatening, resulting in shock.