The patient is a 24-year-old right-handed amateur female tennis player who presented with a 4-week history of progressively worsening left ulnar-sided wrist pain (USWP). Onset of pain was gradual, with no inciting traumatic event. Specifically, her pain was most severe when hitting her two-handed backhand. Symptoms associated with instability such as wrist ‘clunking’ and neurological symptoms such as paresis or paresthesia were absent. Physical examination revealed point tenderness over the distal ulna. To assess the patient’s wrist pain, plain X-rays and ultrasound were obtained for initial investigation. An MRI was subsequently requested to rule out coexistent pathology. Plain film radiography is typically the initial imaging modality used for the investigation of USWP. It is safe, fast and inexpensive and useful for excluding fractures, dislocations, arthritis or positive ulnar variance (associated with …

中文翻译：

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尺侧腕伸肌 (ECU) 腱鞘炎

患者是一名 24 岁的右手业余女子网球运动员，有 4 周的左尺侧手腕疼痛 (USWP) 逐渐恶化的病史。疼痛的发作是渐进的，没有引发创伤性事件。具体来说，当她用双手反手击球时，疼痛最为剧烈。不存在与不稳定相关的症状，例如手腕“嘎嘎作响”，以及神经系统症状，例如麻痹或感觉异常。体格检查发现尺骨远端有点压痛。为了评估患者的手腕疼痛，我们进行了 X 光平片和超声波检查以进行初步检查。随后要求进行核磁共振检查以排除共存的病理。平片放射线照相通常是用于 USWP 研究的初始成像方式。它安全、快速、便宜，可用于排除骨折、脱位、关节炎或尺骨正向变异（与……相关）。