“…There are several reports in the literature of lesions of the RA at the AS, including; aneurysms (Miura et al, 2004;Luzzani et al, 2006;), an aneurysm initially misdiagnosed as a ganglion cyst (Walton & Choudhary, 2002), idiopathic aneurysm (Santos et al, 2008), bilateral aneurysm in a patient with Marfan syndrome (Yukios et al, 2009), mycotic aneurysm of the dorsal carpal branch (Poirier & Stansel, 1972) and traumatic aneurysms (Wenger et al, 1980). McNamara et al (1998) noted that between 1984 and 1995, nine patients were treated with spontaneous thrombosis of the radial artery in the region of the AS, all of whom had ischemic symptoms in the index finger and / or the thumb.…”