Asymptomatic contrast medium extravasation

Asymptomatic CT iodinated contrast extravasation of the upper extremity

“…4 Detection of extravasation can be challenging as a case report of extravasation from an automated contrast injector noted that the injector's pressure monitor did not detect the abnormal injection and the observed pressure waves were indistinguishable from what is seen in uncomplicated infusions. 7 Additionally, the volume of contrast extravasation does not necessarily correlate with the severity of injury; therefore, the patient's signs and symptoms should dictate the need for consultation. After extravasation, one or more of the following should prompt the involvement of surgery: evidence of altered tissue perfusion (ie, prolonged capillary refill time), progressively worsening pain or edema, sensory changes, decreased passive or active range of motion of the extremity (ie, elbow, wrist, or fingers), skin blistering or ulceration.…”