is the palmer branch of the median nerve compressed during carpal tunnel syndrome?

Answer 1

No. The palmar cutaneous n. branches out proximally and runs superficial to the flexor retinaculum.

However, it can be entrapped in conjunction with CTS. See this article: Wada T,Imai T,Ishii S. Entrapment neuropathy of the palmar cutaneous branch of the median nerve concomitant with carpal tunnel syndrome: a case report. J Hand Surg [Br]. 2002 Dec;27(6):583-5.

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