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題名 | Bilateral Extensor Digitorum Brevis Manus--A Rare Anatomical Variant: A Case Report=雙側手部伸指短肌--罕見解剖學變異:病例報告 |
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作者姓名(中文) | 林仲樵; 許宏達; 鄭立福; 呂明川; 黃介琦; 簡守信; 李俊達; | 書刊名 | 臺灣整形外科醫學會雜誌 |
卷期 | 23:4 2014.12[民103.12] |
頁次 | 頁343-348 |
分類號 | 416.615 |
關鍵詞 | 手部伸指短肌; 解剖變異; Extensor digitorum brevis manus; Extensor indicis proprius; |
語文 | 英文(English) |
中文摘要 | 背景:伸指短肌為一解剖上罕見之變異,常被誤認為腱鞘囊腫之類的手部腫瘤。此種變異會造成外觀上不同於常人,但是很少影響日常或導致生活上的不適感。目的及目標:本文提供此種罕見解剖變異之病例報告,並討論相關研究中對此病例的分類與治療材料及方法:一位42歲男性主訴兩手背腫瘤已有兩年時間。右手的腫瘤比左手大。期間並無疼痛等臨床症狀。臨床上懷疑為伸指短肌之變異,後經手術切除右手背的腫瘤並送病理檢驗。結果:病理報告為正常橫紋肌組織,臨床表現符合伸指短肌變異的診斷,屬於Ogura分類第二型。結論:伸指短肌之解剖變異因為在臨床上罕見,常無法正確診斷。影像學檢查(核磁共振及超音波)能幫助更準確的術前診斷,其中超音波檢查便利性佳,價格較低且能提供即時影像。而手術適應症多根據病人要求或臨床症狀。 |
英文摘要 | Background: The extensor digitorum brevis manus muscle (EDBM) is a rare anatomical variant of an aberrant muscle, which may mimic a dorsal hand tumor or being misdiagnosed as a ganglion cyst. This variation results in gross abnormal appearance, but little discomfort in daily life. Aim and Objectives: This article provide a case report of anatomical variant and some literature review for classification and management. Materials and Methods: A 42-year-old man complained of a tumor over the dorsal aspect of his bilateral hands for 2 years. The tumor was larger on the right hand. There was no associated pain or other clinical symptoms. An EDBM was suspected and surgical excision of the right dorsal hand tumor was performed under patient's will and for pathologic proof. Results: The pathology proved a normal striated muscle tissues. The clinical finding was compatible to the extensor digitorum brevis manus, Ogura classification type II. Conclusion: The EDBM is usually diagnosed incorrectly due to its rarity. Image study (ultrasound and MRI) may help for a more accurate preoperative diagnosis. Ultrasound study was favored due to it availability, lower cost and real-time property. Surgical indication depends on the patient's request and clinical symptoms. |
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