Hematoma

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Related to hematomas: edema, epidural hematoma

hematoma

[‚hē·mə′tō·mə]
(medicine)
A localized mass of blood in tissue; usually it clots and becomes encapsulated by connective tissue.

Hematoma

 

a localized accumulation of liquid blood in tissues.

A hematoma is formed during hemorrhages if the blood does not infiltrate the tissues (such as the subcutaneous tissue, muscles, periosteum, brain, liver, and spleen) but rather separates them, forming a cavity. The primary cause of hematomas is trauma, or rupture of pathologically altered blood vessels. Small hematomas are resorbed without a trace, but an inflammatory reaction develops, with the formation of a thick capsule, around large ones. Hematomas result in swelling, ecchymosis, pain, and dysfunction of the affected organ. Treatment involves application of a pressure bandage, and treatment with cold the first day and then heat. Surgery is indicated if a liver or spleen hematoma ruptures or if the hematoma suppurates.

References in periodicals archive ?
Hemorrhage tends to be located near the portal triads, while hematomas can arise from anywhere in the parenchyma.
Management of acute subdural hematomas from aneurysmal rupture.
The patient underwent a computed tomography (CT) scan of the right lower extremity, which demonstrated a hematoma in the region of the gluteus maximus measuring 13 cm by 9.
14) reported the staged laparoscopic decortication of bilateral subcapsular hematomas causing a Page kidney, also due to shock wave lithotripsy.
Rectus sheath hematoma is a collection of blood within the abdominal wall musculature or fascia.
Additional CT scans obtained there confirmed the presence of the subdural hematomas and mild cerebral swelling.
SAN DIEGO - In 500 consecutive cesarean deliveries closed with subcuticular absorbable staples, only one hematoma occurred, and the overall surgical site infection rate was 1.
Spontaneous intestinal hematoma is a rare complication of anticoagulant therapy, and small bowel obstruction caused by intramural hematoma secondary to anticoagulant therapy is even rarer.
11] With the HM3 electrohydraulic lithotripter, the incidence of post-SWL symptomatic peri-renal hematomas detected by ultrasound is estimated to be 0.
Also, we conclude that the conservative management for intramuscular hematomas might be preferred in advanced age.
These also provide reliable scientific evidence for clinical tracing, observation, and absorption judgment of small and moderate-sized hematomas in nonsurgical treatment.
There are no more than a few reports in the literature, hitherto, mentioning about abdominal wall hematomas due to enoxaparin (1-3) whereas other types of hematomas are more frequently reported (4,5).