- 期刊
Lymphoepithelial Cyst of the Parotid Gland - A Case Report
腮腺淋巴上皮囊腫－病例報告
摘要
淋巴上皮囊腫在以前常被稱為鰓裂或鰓囊腫，其病因仍有爭論。主要的學說包括鰓器學說、胸管學說和包含學說等。它發生在腮腺的機會較少，而依照病人和HIV感染的相關性，可分成和AIDS相關與不相關兩類。自AIDS盛行後，和HIV感染相關的腮腺淋巴上皮囊腫顯著增加。一位81歲男性因左耳下兩個夕月緩慢變大的腫瘤而來求診，理學檢查可見左耳下一直徑5公分，堅實無壓痛之腫塊，無顏面神經麻痺及頸部淋巴結，電腦斷層攝影顯示在左腮腺深部有一不被顯影的均埆中密度腫塊。術前診斷為腮腺良性腫瘤或囊腫。手術採部分腮腺切除術，結果發現腫塊為內含棕色晶狀樣液體的囊腫，病理組織檢查淋巴上皮囊腫，追檢HIV為陰性，術後兩年無復發現象。腮腺淋巴上皮囊腫常會被誤診為其他的腮腺良性腫瘤，所以術前的許多檢查雖然可幫助診斷，仍須病理組織檢查才能確診。台灣雖不是AIDS盛行區，但HIV感染的可能性仍需加以考慮。
關鍵字
無資料並列摘要
The lymphoepithelial cyst has been commonly termed branchial cleft cyst or branchial cyst. Although many theories, including the branchial apparatus theory, thymic duct theory, and inclusion theory, have been put forward, the etiology is still controversial. Parotid lymphoepithelial cysts are rare and could be divided into two groups, AIDS-related and non-AIDS related, by the relateionship with HIV infection. A non-AIDS related lymphoepithelial cyst of left parotid gland in an 81-year-old man presenting as a parotid tumor is described. A left partial parotidectomy was carried out to remove the lesion. There was no recurrence after 2 years. Lymphoepithelial cysts of the parotid gland are often misdiagnosed as other benign tumors in spite of detailed preoperative investigations. Thus a pathological proof is needed for precise diagnosis. In addition, we also need to take the possibility of HIV infection into consideration, although Taiwan is not an AIDS epidemic area.
延伸閱讀
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