peritenon

tendinous sheath of ex·ten·sor car·pi ul·na·ris mus·cle

[TA]
the dorsal carpal synovial tendon sheath surrounding the tendon of the extensor carpi ulnaris in its course deep to the extensor retinaculum.

peritenon

An obsolete term that formerly referred to peritendinous fibroconnective tissue.

peritenon

(pĕr″ĭ-tē′nŏn) [″ + tenon, tendon]
The sheath of a tendon.

peritenon

the connective tissue structures attached to and surrounding a tendon.
References in periodicals archive ?
The Achilles tendon, like the triceps tendon, does not have a tendon sheath and is surrounded by fibrofatty tissue called the peritenon.
The dissection plane is between the peritenon and the neurovascular bundle, with the neurovascular bundle being taken with the flap.