Intratendinous Fibroma of the Superficial Digital Flexor Tendon within the Carpal Sheath of a Horse

Diagnosis and arthroscopic removal of an intra‐articular epidermoid cyst in the distal interphalangeal joint of a 15‐year‐old horse

“…In horses it has been described within a femorotibial bursae (Kirk, 1982), metatarsophalangeal joints (Smith et al, 1995) and a middle carpal joint (Newman et al, 2014). Intra‐synovial soft tissue tumours reported in horses include mastocytomas (Leadbeater et al, 2010; Uehlinger et al, 2010), lipomas (Hammer et al, 2002; Owens et al, 2017) and a fibroma (Rich et al, 2021). Intra‐articular mass‐like lesions caused by non‐septic chronic inflammation can be classified as villonodular synovitis (Nickels et al, 1976) or chronic proliferative synovitis (Veenedaal & Moffatt, 1980).…”