4.2 Article

The Diagnosis and Management of Advanced Endolymphatic Sac Tumor

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JOURNAL OF CRANIOFACIAL SURGERY
卷 34, 期 5, 页码 E459-E462

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LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/SCS.0000000000009305

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Endolymphatic sac; endolymphatic sac tumor; recurrence; surgical approach

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Endolymphatic sac tumor (ELST) is a rare group of low-grade malignant tumors originating from the endolymphatic sac of the inner ear. The lack of specificity in clinical manifestations makes timely diagnosis difficult, leading to challenges in the treatment of advanced ELSTs. This case report highlights the successful use of the transotic approach for tumor resection, emphasizing the importance of complete surgical resection and careful management of important structures.
Endolymphatic sac tumor (ELST) is a group of low-grade malignant tumors originating from the endolymphatic sac of the inner ear. It is rare in the clinic and has the biological characteristics of slow growth and local aggression. Due to the lack of specificity in the clinical manifestations of patients with ELST, many cases have entered the advanced stage at the time of diagnosis. However, there are still great challenges in the treatment of advanced ELSTs. Here, the authors describe a case of advanced ELST, which relapsed after 2 operations. This time, the authors chose the transotic approach for tumor resection, which achieved the goal of complete resection of the tumor, and the patient recovered smoothly after surgery. There were no surgical complications and no tumor recurrence after the follow-up. Through literature review and our own experience, the authors suggest that complete surgical resection is the first choice for both primary and recurrent advanced ELSTs. The choice of a reasonable surgical approach is the key to ensuring complete resection of the tumor, while preoperative angiography and embolization, fine treatment of important structures during surgery, and postoperative long-term follow-up are equally important for patients with advanced ELST to obtain a good prognosis.

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