A tendon sheath is a layer of synovial membrane around a tendon.[1] It permits the tendon to stretch[2] and not adhere to the surrounding fascia. It contains a lubricating fluid that allows for smooth motions of the tendon during muscle contraction and joint movements.[3]
It has two layers:
synovial sheath
fibrous tendon sheath
Fibroma of the tendon sheath has been described.[4][5]
^Betts, J. Gordon (2013). "9.4 Synovial joints". Anatomy & physiology. Houston, Texas: OpenStax. ISBN 978-1-947172-04-3. Retrieved 16 April 2023.
^Ciatti; Mariani, P. (2009). "Fibroma of tendon sheath located within the ankle joint capsule". Journal of Orthopaedics and Traumatology. 10 (3): 147–150. doi:10.1007/s10195-009-0058-2. PMC 2744735. PMID 19644650.
^Okada; Shinozaki, T.; Hirato, J.; Yanagawa, T.; Takagishi, K. (2009). "Fibroma of tendon sheath of the infrapatellar fat pad in the knee". Clinical Imaging. 33 (5): 406–408. doi:10.1016/j.clinimag.2008.11.029. PMID 19712825.
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