Spontaneous Upper Extremity Venous Thrombosis in a Collegiate Soccer Player: A Case Report.

Spontaneous effort-induced thrombosis is a rare but reported phenomena that was originally described over 100 years ago. The pathogenesis of this thrombosis arises from an abnormality of the thoracic outlet usually combined with a history of physical activity that includes repetitive arm motions, usually of the dominant hand. We present the case of an adolescent patient who presented to a pediatric emergency department with progressive pain, discoloration, and swelling of the shoulder of his nondominant hand. The pain became acutely worse with graying appearance of his arm. The patient was diagnosed with spontaneous thrombosis of the upper extremity extending from the left subclavian vein extending to the axillary vein. Treatment of this patient included aggressive anticoagulation, thrombolysis, and costectomy.