Noninflammatory gas formation following embolization of adrenal carcinoma.

Gas formation as a result of transcatheter tumor embolization has recently been observed by conventional radiography. We report the computed tomography identification of similar benign gas formation following transcatheter embolization of a large adrenal carcinoma. Computed tomography should be the most sensitive method available for detecting gas formation. It is important to recognize this gas formation as a consequence of embolization and cell necrosis rather than as an indication of an inflammatory complication.