Fig. 15
From: Errors, discrepancies and underlying bias in radiology with case examples: a pictorial review
A complication (Type 11 error) causing acute harm to the patient and resulting in an insufficient examination. Thorax CT with pulmonary thromboembolism (PTE) protocol was performed for a dyspneic patient with a known breast cancer history. Just after the study, the patient complained of pain and swelling in the forearm. The X-ray of the upper extremity showed extravasated contrast agent to the wrist region (blue arrow, a). It was noted that the amount of intravascular contrast media was not sufficient for the evaluation of PTE (red arrow, b). Medical treatment was given, and the procedure was repeated. This case is a good example of “acute and temporary harm” caused by a periprocedural complication