Abstract: . . .  of the lack of predisposing factors, underlying diseases, and trauma to the shoulder, the diagnosis was delayed. This report serves to remind clinicians of the important role of the certified athletic trainer (AT) in recognizing the clinical signs and symptoms associated with atraumatic thrombosis , so as to fa- cilitate timely medical referral and treatment of this uncom- mon, yet potentially fatal condition. Individuals who partici- pate in athletics can develop UEDVT, so team physicians and ATs must be aware of this rare condition. CASE REPORT . . .
. . .  AbuRahma AF, Sadler D, Stuart P, Khan MZ, Boland JP. Conventional versus thrombolytic therapy in spontaneous (effort) axillary-subclavian vein thrombosis . Am J Surg. 1991;161:459465. 10. Azakie A, McElhinney DB, Thompson RW, Raven RB, Messina LM, Stoney RJ. Surgical management of subclavian-vein effort thrombosis as a result of thoracic outlet compression. J Vasc Surg. 1998;28:777786. 11. DiFelice GS, Paletta GA Jr, Phillips BB, Wright RW. Effort thrombosis in the elite throwing athlete. Am J Sports Med. 2002;30:708712. 12. Nemmers DW, Thorpe PE, Knibble . . .
. . .  DW, Fantini GA, Weiland AJ. An aneurysm involving the axillary artery and its branch vessels in a major league baseball pitcher: a case report and review of the literature. Am J Sports Med. 1999;27:370375. 14. Prandoni P, Polistena P, Bernardi E, et al. Upper-extremity deep vein thrombosis : risk factors, diagnosis, and complications. Arch Intern Med. 1997;157:5762.  . . .
. . .  Fantini GA, Weiland AJ. An aneurysm involving the axillary artery and its branch vessels in a major league baseball pitcher: a case report and review of the literature. Am J Sports Med. 1999;27:370375. 14. Prandoni P, Polistena P, Bernardi E, et al. Upper-extremity deep vein thrombosis : risk factors, diagnosis, and complications. Arch Intern Med. 1997;157:5762.  . . .
. . .  nontraditional baseball season at the collegiate level. One year after initial develop- ment of the condition, the patient returned to normal physical activity, participated for the entire year without limitation, and helped lead his team to a second-place finish in the National Collegiate Athletic Association World Series. DISCUSSION Although early clinical recognition of UEDVT is important, diagnosis can be difficult due to its indeterminate cause and Page 3 200 Volume 41 Number 2  . . .
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