RT Journal Article SR Electronic T1 MR appearance of an orbital leiomyoma. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 473 OP 474 VO 14 IS 2 A1 Carrier, D A A1 Mawad, M E A1 Kirkpatrick, J B YR 1993 UL http://www.ajnr.org/content/14/2/473.abstract AB The authors describe the MR appearance of an intraconal orbital vascular leiomyoma that probably arose from smooth muscle in the wall of a vein. Cavernous hemangiomas, schwannomas, neurofibromas, and other well-encapsulated masses can have a similar appearance.