Extravasation

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extravasation

[ik‚strav·ə′sā·shən]

(geology)

The eruption of lava from a vent in the earth.

(medicine)

The pouring out or eruption of a body fluid from its proper channel or vessel into the surrounding tissue.

Extravasation

the accumulation of blood that has flowed out of the blood vessels into the body cavities or surrounding tissues.

Extravasation may occur when the walls of the vessels are destroyed by a mechanical injury or a pathological process (for example, tumor). It may also occur through an uninjured wall, when the permeability of the wall is increased (for example, under the influence of certain chemical substances). The discharged blood may either permeate the tissues affected by the extravasation or form a circumscribed accumulation, called a hematoma. The significance of extravasation is determined by dimensions, rapidity of development, and site of formation. When the process is minor it is resorbed without treatment. If encapsulated or suppurative, it often requires special treatment. Because extravasation may lead to the destruction of tissue, it is especially dangerous in the brain (insult).

Mentioned in ?

Contusion

References in periodicals archive ?

Extravasation of contrast media occurs when iodinated contrast injected intravenously (IV) leaks out into the surrounding tissues because of the dislodgment of the intravenous cannula, leakage from the puncture site or rupture of the vascular wall.

When power injectors go wrong

Active extravasation of contrast, myocardial disruption, and visualized communication between the ventricle and pericardium may signal this rare imaging diagnosis.

Traumatic Cardiac Injury: Ventricular Perforation Caught on CT

Ohyama, "Spontaneous peripelvic extravasation of urine," International Urology and Nephrology, vol.

Severe Hydronephrosis and Perinephric Urinoma with Rupture of Renal Fornix Secondary to Postoperative Urinary Retention following Laparoscopic Umbilical Hernia Repair

Reducing the morbidity from extravasation injuries.

Extravasation management of non-cytotoxic medications/Non-sitotoksik ilaclarda ekstravazasyon yonetimi

Calcinosis cutis following extravasation of calcium chloride.

Erythematous plaque with yellowish papules on the shin: was the eruption on our patient's leg related to the treatment he received during his hospitalization?

Oral mucoceles; extravasation cysts and retention cysts.

Mucocele: retention and extravasation types

The laceration of the liver in this case was in proximity to the gallbladder fossa and contrast extravasation here raised concern for a gallbladder injury.

Laparoscopic cholecystectomy for traumatic gallbladder perforation

As such, sensation of pain and burning in oncology patients should be considered a reliable sign of extravasation even when good blood return is observed.

Bullous cutaneous eruption due to extravasation of acyclovir in an adolescent with acute lymphoblastic leukemia / Akut Lenfoblastik Losemili Bir Adolesanda Asiklovirin Damar Disina Sizmasina Bagli Bulloz Cilt Erupsiyonu

Eight examinations were negative for active extravasation, two of whom showed haemorrhage in second session and were embolized.

An institutional review of transarterial embolization in haemorrhagic urological emergencies

We present a case of tracheal distortion caused by extravasation of fluid in a 73-year-old male undergoing an arthroscopic shoulder cuff repair, in which a cuff leak was useful in deciding safety of extubation.

Tracheal obstruction caused by fluid extravasation during shoulder arthroscopy

Peripeivic extravasation associated with spontaneous rupture of renal pelvis is a rare occurrence, caused mostly by the obstruction due to calculus.

The importance of gray scale and color Doppler ultrasonography in the diagnosis of spontaneous renal pelvis rupture: case report / Spontan renal pelvis yirtilmasi tanisinda gri skala ve renkli Doppler ultrasonografinin onemi: olgu sunumu

Aside from that, a right occipital epidural hematoma and extensive subarachnoid extravasation was found, especially in the posterior cranial fossa (Figures 1, A and B, and 2).

Postmortem whole-body computed tomography angiography visualizing vascular rupture in a case of fatal car crash