Palmar Cutaneous Branch of the Median Nerve

The palmar cutaneous branch of the median nerve is a sensory branch of the median nerve.
Branches of radial side of median nerve 6 - 7 cm proximal to wrist crease.
The palmar cutaneous branch of the median nerve is dorsal to the volar forearm fascia in Section 9 and goes into the subcutaneous tissues of the thenar eminence at the wrist crease.
In Section 9 the palmar cutaneous branch of the median nerve is located between the palmaris longus and the flexor carpi radialis tendons.

Diagrams & Photos

Note the median nerve and its palmar cutaneous bran
Note the cut median nerve (dotted line), the palmar cutaneous branch (PCBMN), and the cut palmaris longus (PL).
Note the the palmar cutaneous branch of the median nerve (PCBMN)

Key Points

The palmar cutaneous branch of the median nerve can arise ulnarly from the median nerve.
The palmar cutaneous branch of the median nerve can sometimes be located superficial to or radial to flexor carpi radialis tendon.
In the subcutaneous tissue the palmar cutaneous branch of the median nerve can have 1-3 branches.
In a small percentage of cases, the palmar cutaneous branch of the median nerve communicates with the dorsal sensory radial nerve.