Resumo
Objetivo: Relatar o caso de tumor do saco endolinfático, descrevendo os principais achados clínicos, radiológicos e anatomopatológicos, as estratégias terapêuticas multidisciplinares empregadas e o desfecho clínico. Detalhamento do caso: Mulher de 42 anos apresentou hipoacusia e vertigem há 12 meses, com evolução para paralisia facial periférica e afasia. A tomografia computadorizada evidenciou destruição lítica agressiva do ápice petroso e da mastoide, enquanto a ressonância magnética demonstrou o padrão clássico em “sal e pimenta” e aneurisma carotídeo incidental. Após ressecção cirurgica subtotal, o diagnóstico foi confirmado por imunohistoquímica, com positividade para CAM 5.2, GFAP e EMA. Diante de lesão residual volumosa e invasão de estruturas neurovasculares, instituiu-se radioterapia (70 Gy). O seguimento em 2025 evidenciou redução volumétrica sustentada da lesão, estabilidade do aneurisma e recuperação funcional satisfatória por meio de reabilitação multidisciplinar com posterior aumento da lesão em exames subsequentes. Considerações finais: O estudo evidenciou que o diagnóstico do tumor do saco endolinfático depende da integração entre clínica, avaliação anatomopatológica, imunohistoquimica e radiológica, com a imagem exercendo papel central na diferenciação de mimetizadores e no direcionamento terapêutico. O tratamento combinado e a abordagem multidisciplinar possibilitaram controle da doença e preservação funcional.
Referências
AMAROWICZ J, WARZECHA M. Application of kinesiology taping for pain management in oncologic patients. Advances in Rehabilitation, 2020; 34(2): 32–41.
BAUSCH B, et al. Characterization of endolymphatic sac tumors and von Hippel-Lindau disease in the International Endolymphatic Sac Tumor Registry. Head Neck, 2016; 38(1): E673-9.
BELL D, et al. Endolymphatic sac tumor (aggressive papillary tumor of middle ear and temporal bone): sine qua non radiology-pathology and the University of Texas MD Anderson Cancer Center experience. Annals of Diagnostic Pathology, 2011; 15(2): 117-23.
BRADA MD, et al. Padrão de expressão imuno-histoquímica dos alvos teranósticos SSTR2 e PSMA em tumores do saco endolinfático: uma série de casos de uma única instituição. Head and Neck Pathology, 2022; 16: 1012–1018.
FERRI E, et al. A rare case of endolymphatic sac tumour: clinicopathologic study and surgical management. Case Reports in Otolaryngology, 2014; 2014: 376761.
GE H, et al. Endolymphatic sac tumor: case report and literature review. Chinese Neurosurgical Journal, 2020; 6: 16.
GIOACCHINI FM, et al. Surgical Management of Endolymphatic Sac Tumor: A Systematic Review and Meta-Analysis. Journal of International Advanced Otology, 2023; 19(3): 248-254.
GIOACCHINI FM, et al. Symptoms and clinical features in patients affected by endolymphatic sac tumor: a systematic review and meta-analysis. European Archives of Oto-Rhino-Laryngology, 2022; 279(11): 5081-5088.
HEFFNER DK. Low-grade adenocarcinoma of probable endolymphatic sac origin A clinicopathologic study of 20 cases. Cancer, 1989; 64(11): 2292-302.
JHAVERI M, et al. Diagnostic Imaging Brain. 4th ed. Philadelphia: Elsevier, 2021; 1200p.
LE H, et al. Clinicoradiologic characteristics of endolymphatic sac tumors. European Archives of Oto-Rhino-Laryngology, 2019; 276(10): 2705-2714.
MEZRI S, et al. Papillary endolymphatic sac tumor: Case report with clinical study and therapeutic management. International Journal of Surgery Case Reports, 2025; 133: 111630.
PATEL T, et al. A Rare Case of Endolymphatic Sac Tumour: Clinical, Radiological, Pathological and Immunohistochemical Findings with Review of Literature. Indian Journal of Otolaryngology and Head & Neck Surgery, 2022; 74(3): 3638-3642.
SINCLAIR G, et al. Therapy options in the management of endolymphatic sac tumors: A case series and literature review. Surgical Neurology International, 2025; 16: 508.
SKALOVA A, et al. Endolymphatic sac tumor (aggressive papillary tumor of middle ear and temporal bone): Report of two cases with analysis of the VHL gene. Pathology - Research and Practice, 2008; 204(8): 599-606.
SUN, Y, et al. Endolymphatic sac tumor: case report and review of the literature. Diagnostic Pathology, 2012; volume 7, 01-01.
SYKOPETRITES V, et al. The endolymphatic sac tumor: challenges in the eradication of a localized disease. European Archives of Oto-Rhino-Laryngology, 2021; 278(7): 2297-2304.
TANG JD, et al. Systematic Review of Endolymphatic Sac Tumor Treatment and Outcomes. Otolaryngology–Head and Neck Surgery, 2023; 168(3): 282-290.
THOMPSON LDR, et al. CAIX and pax-8 Commonly Immunoreactive in Endolymphatic Sac Tumors: A Clinicopathologic Study of 26 Cases with Differential Considerations for Metastatic Renal Cell Carcinoma in von Hippel-Lindau Patients. Head and Neck Pathology, 2019; 13(3): 355-363.
WENG J, et al. Surgical Management and Prognostic Factors for Endolymphatic Sac Tumor: A Single-Institute Experience with a Systematic Review. World Neurosurgery, 2025; 194: 123384.
YUAN K, et al. Case report: Endolymphatic sac tumor with blurred vision. Frontiers in Oncology, 2025; 14: 1463526.
ZANOLETTI E, et al. Endolymphatic sac tumour in von Hippel-Lindau disease: management strategies. Acta Otorhinolaryngologica Italica, 2017; 37(5): 423-429.
