Vol. 11, Issue 4 (2025)

Introduction: De Quervain's tenosynovitis is a condition affecting the wrist, resulting from inflammation between the tendons of the abductor pollicis longus and extensor pollicis brevis muscles and the osteofibrous tunnel in the first dorsal compartment of the wrist. It usually occurs in cases of microtrauma and also in women in the last trimester of pregnancy, postpartum, and during menopause.
Observation: We report the case of a 36-year-old woman who presented in April 2021 with pain on the outer edge of both wrists at the base of the thumbs. An ultrasound was performed and revealed bilateral tenosynovitis of the long abductor and short extensor tendons of the first finger. Medical treatment was initiated and the outcome was favorable.
Discussion: De Quervain's tenosynovitis, formerly known as crepitant peritendinitis, affects both sexes between the ages of 40 and 50, with a predominance in women. The diagnosis of tendinitis or tenosynovitis is essentially clinical and can be confirmed by ultrasound if necessary. In most cases, treatment is medical, with surgery being used if medical treatment fails.