A case of imaging diagnosis of 20-year recurrence of endolymphatic sac tumor

This paper reports a case of recurrent endolymphatic sac tumor after subtotal resection, which was initially diagnosed as papillary sweat adenoma. The CT and MRI characteristics, clinical manifestations and pathological morphology of the tumor were analyzed, and the relevant literature was reviewed. The imaging manifestations were mainly summarized in order to improve the understanding of the tumor by radiologists and clinicians.