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110
117
OHAMI
5 10
OHAMI
1 2 2 3
1
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3
CT
CG
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CG3dsMAX CT
CG
CG
CG
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OHAMII
Persistent median artery: Relationships to palmar arches and median
nerve branches
Nabil Eid, Yuko Ito, Yoshinori Otsuki
Osaka medical college
Two cases of unilateral persistent median artery PMA were detected during the
dissection of 25 cadavers. The first case was a 75yearold man. A dissection of
his left upper limb revealed a PMA piercing both the median nerve MN and
the anterior interosseous nerve. The PMA coursed distally, deep to the transverse
carpal ligament TCL, forming a medianulnar pattern of complete superficial
palmar arch SPA. The PMA was superficial to two nerves at the distal edge of
the TCL; the extraligamentous recurrent thenar RT branch of MN and the third
common digital nerve TCDN. The other case was an 80 yearoldfemale. Her
left forearm showed a high origin of the radial artery from the brachial artery with
trifurcation of the latter into PMA, common interosseous and ulnar arteries. The
PMA passed deep to the TCL forming radialmedian ulnar pattern of SPA. Both
the transligamentous RT branch of MN and the TCDN passed deep to the PMA
inside the carpal tunnel, before the crossing of the latter nerve ventral to the SPA
on its way to the digits. The relationships of the PMA to MN branches may have
important implications regarding the diagnosis and treatment of MN compressive
syndromes.
OHAMII
10 20
OHAMII
Thiel
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1
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Thiel 5 9
12
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67
TFCC
Thiel Graz Thiel
variation
OHAMIII
11 20
3
variation