Proposta de algoritmo diagnóstico para o carcinoma epidermoide da cabeça e pescoço com tumor primário desconhecido: uma abordagem baseada na evidência
DOI:
https://doi.org/10.34631/sporl.3154Palavras-chave:
Cancro cabeça e pescoço, carcinoma epidermoide, Tumor primário ocultoResumo
Objetivos: Construção de um algoritmo de abordagem diagnóstica para aplicar nos casos de carcinoma epidermóide da cabeça e pescoço com tumor primário desconhecido.
Material e Métodos: Foi realizada uma revisão narrativa da literatura nas bases de dados PubMed e Scopus em junho de 2025, focada em estudos sobre a abordagem diagnóstica do carcinoma epidermoide da cabeça e pescoço com tumor primário desconhecido.
Resultados: O protocolo proposto inicia-se com uma estratificação vírica através da pesquisa de p16 e EBER na biópsia da adenopatia, seguida de uma abordagem diagnóstica sequencial guiada por estes resultados, integrando uma avaliação imagiológica funcional com PET-TC antes da realização de biópsias de locais suspeitos. Nos casos com EBER negativo, é recomendada uma exploração cirúrgica sistemática do trato aerodigestivo superior, que, na ausência de lesões suspeitas, deve ser complementada com amigdalectomia total bilateral e mucosectomia ipsilateral da base da língua. Nos casos com EBER positivo, o foco diagnóstico é dirigido para a nasofaringe, sendo recomendada avaliação imagiológica com ressonância magnética.
Conclusões: Uma abordagem sistematizada nos casos de carcinoma epidermoide em adenopatias cervicais com tumor primário desconhecido poderá permitir uma melhor utilização dos recursos atualmente disponíveis e aumentar a taxa de identificação do tumor primário.
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Referências
1. Xing Y, Zhang J, Lin H, Gold KA, Sturgis EM, Garden AS. et al. Relation between the level of lymph node metastasis and survival in locally advanced head and neck squamous cell carcinoma. Cancer. 2016 Feb 15;122(4):534-45. doi: 10.1002/cncr.29780.
2. Hosni A, Dixon PR, Rishi A, Au M, Xu W, Song Y. et al. Radiotherapy characteristics and outcomes for head and neck carcinoma of unknown primary vs T1 base-of-tongue carcinoma. JAMA Otolaryngol Head Neck Surg. 2016 Dec 1;142(12):1208-1215. doi: 10.1001/jamaoto.2016.3083.
3. Manoharan M, Kalman NS, Rabinowits G. Head and neck squamous cell carcinoma of unknown primary: a diagnostic work-up. Oncologist. 2024 Mar 4;29(3):192-199. doi: 10.1093/oncolo/oyad311.
4. Grau C, Johansen LV, Jakobsen J, Geertsen P, Andersen E, Jensen BB. Cervical lymph node metastases from unknown primary tumours: results from a national survey by the Danish Society for Head and Neck Oncology. Radiother Oncol. 2000 May;55(2):121-9. doi: 10.1016/s0167-8140(00)00172-9.
5. Golusinski P, Di Maio P, Pehlivan B, Colley S, Nankivell P, Kong A. et al. Evidence for the approach to the diagnostic evaluation of squamous cell carcinoma occult primary tumors of the head and neck. Oral Oncol. 2019 Jan:88:145-152. doi: 10.1016/j.oraloncology.2018.11.020.
6. Alzahrani F, Sahovaler A, Mundi N, Rammal A, Fnais N, MacNeil SD. et al. Transoral robotic surgery for the identification of unknown primary head and neck squamous cell carcinomas: its effect on the wait and the weight. Head Neck. 2022 May;44(5):1206-1212. doi: 10.1002/hed.27023
7. Maghami E, Ismaila N, Alvarez A, Chernock R, Duvvuri U, Geiger J, et al. Diagnosis and management of squamous cell carcinoma of unknown primary in the head and neck: ASCO guideline. J Clin Oncol. 2020 Aug 1;38(22):2570-2596. doi: 10.1200/JCO.20.00275.
8. Masuoka S, Hiyama T, Kuno H, Sekiya K, Sakashita S, Kobayashi T. Imaging approach for cervical lymph node metastases from unknown primary tumor. Radiographics. 2023 Mar;43(3):e220071. doi: 10.1148/rg.220071.
9. Havsteen I, Ohlhues A, Madsen KH, Nybing JD, Christensen H, Christensen A. Are movement artifacts in magnetic resonance imaging a real problem?-A narrative review. Front Neurol. 2017 May 30:8:232. doi: 10.3389/fneur.2017.00232.
10. Motz K, Qualliotine JR, Rettig E, Richmon JD, Eisele DW, Fakhry C. Changes in unknown primary squamous cell carcinoma of the head and neck at initial presentation in the era of human papillomavirus. JAMA Otolaryngol Head Neck Surg. 2016 Mar;142(3):223-8. doi: 10.1001/jamaoto.2015.3228.
11. Park JM, Jung CK, Choi YJ, Lee KY, Kang JH, Kim MS. et al. The use of an immunohistochemical diagnostic panel to determine the primary site of cervical lymph node metastases of occult squamous cell carcinoma. Hum Pathol. 2010 Mar;41(3):431-7. doi: 10.1016/j.humpath.2009.09.001.
12. Vent J, Haidle B, Wedemeyer I, Huebbers C, Siefer O, Semrau R. et al. p16 expression in carcinoma of unknown primary: diagnostic indicator and prognostic marker. Head Neck. 2013 Nov;35(11):1521-6. doi: 10.1002/hed.23190.
13. Graboyes EM, Sinha P, Thorstad WL, Rich JT, Haughey BH. Management of human papillomavirus–related unknown primaries of the head and neck with a transoral surgical approach. Head Neck. 2015 Nov;37(11):1603-11. doi: 10.1002/hed.23800.
14. Lewis Jr JS, Beadle B, Bishop JA, Chernock RD, Colasacco C, Kalicanin T. et al. Human papillomavirus testing in head and neck carcinomas: guideline update. Arch Pathol Lab Med. 2025 Jun 1;149(6):e115-e150. doi: 10.5858/arpa.2024-0388-CP.
15. Altekin I, Taş A, Yalcin O, Guven SG, Aslan Z, Adali MK. et al. Frequency of Epstein-Barr virus and human papilloma virus in patients with nasopharyngeal carcinoma. Eur Arch Otorhinolaryngol. 2020 Jul;277(7):2041-2047. doi: 10.1007/s00405-020-05907-x.
16. Eduardo B, Raquel C, Rui M. Nasopharyngeal carcinoma in a south European population: epidemiological data and clinical aspects in Portugal. Eur Arch Otorhinolaryngol. 2010 Oct;267(10):1607-12. doi: 10.1007/s00405-010-1258-3.
17. Breda E, Queirós A, Moniz C, Ferreira V, Palmeira C, Pinto D. Detecção do virus Epstein-Barr no carcionoma indiferenciado da nasofaringe em Portugal-zona Norte. Rev Port ORL. 2001;39:363-8.
18. Bowe CM, Garg M. The role of non-oropharyngeal biopsies in head and neck squamous cell carcinoma of unknown primary: a systematic review. Clin Otolaryngol. 2024 Sep;49(5):531-537. doi: 10.1111/coa.14157.
19. von Schulthess GK, Steinert HC, Hany TF. Integrated PET/CT: current applications and future directions. Radiology. 2006 Feb;238(2):405-22. doi: 10.1148/radiol.2382041977.
20. Yeung HW, Schöder H, Smith A, Gonen M, Larson SM. Clinical value of combined positron emission tomography/computed tomography imaging in the interpretation of 2-deoxy-2-[F-18]fluoro-D-glucose-positron emission tomography studies in cancer patients. Mol Imaging Biol. 2005 May-Jun;7(3):229-35. doi: 10.1007/s11307-005-4113-y.
21. Rusthoven KE, Koshy M, Paulino AC. The role of fluorodeoxyglucose positron emission tomography in cervical lymph node metastases from an unknown primary tumor. Cancer. 2004 Dec 1;101(11):2641-9. doi: 10.1002/cncr.20687.
22. Han A, Xue J, Hu M, Zheng J, Wang X. Clinical value of 18F-FDG PET-CT in detecting primary tumor for patients with carcinoma of unknown primary. Cancer Epidemiol. 2012 Oct;36(5):470-5. doi: 10.1016/j.canep.2012.03.002.
23. Deonarine P, Han S, Poon F, de Wet C. The role of 18F-fluoro-2-deoxyglucose positron emission tomography/computed tomography in the management of patients with carcinoma of unknown primary. Scott Med J. 2013 Aug;58(3):154-162. doi: 10.1177/0036933013496958.
24. Mani N, George MM, Nash L, Anwar B, Homer JJ. Role of 18-Fludeoxyglucose positron emission tomography-computed tomography and subsequent panendoscopy in head and neck squamous cell carcinoma of unknown primary. Laryngoscope. 2016 Jun;126(6):1354-8. doi: 10.1002/lary.25783
25. Rudmik L, Lau HY, Matthews TW, Bosch JD, Kloiber R, Molnar CP. et al. Clinical utility of PET/CT in the evaluation of head and neck squamous cell carcinoma with an unknown primary: a prospective clinical trial. Head Neck. 2011 Jul;33(7):935-40. doi: 10.1002/hed.21566.
26. Johansen J, Buus S, Loft A, Keiding S, Overgaard M, Hansen HS. et al. Prospective study of 18FDG‐PET in the detection and management of patients with lymph node metastases to the neck from an unknown primary tumor. Results from the DAHANCA‐13 study. Head Neck. 2008 Apr;30(4):471-8. doi: 10.1002/hed.20734.
27. Di Maio P, Iocca O, De Virgilio A, Giudice M, Pellini R, D'Ascanio L. et al. Narrow band imaging in head and neck unknown primary carcinoma: a systematic review and meta‐analysis. Laryngoscope. 2020 Jul;130(7):1692-1700. doi: 10.1002/lary.28350.
28. Tanzler ED, Amdur RJ, Morris CG, Werning JW, Mendenhall WM. Challenging the need for random directed biopsies of the nasopharynx, pyriform sinus, and contralateral tonsil in the workup of unknown primary squamous cell carcinoma of the head and neck. Head Neck. 2016 Apr;38(4):578-81. doi: 10.1002/hed.23931.
29. Cianchetti M, Mancuso AA, Amdur RJ, Werning JW, Kirwan J, Morris CG. et al. Diagnostic evaluation of squamous cell carcinoma metastatic to cervical lymph nodes from an unknown head and neck primary site. Laryngoscope. 2009 Dec;119(12):2348-54. doi: 10.1002/lary.20638.
30. Koch WM, Bhatti N, Williams MF, Eisele DW. Oncologic rationale for bilateral tonsillectomy in head and neck squamous cell carcinoma of unknown primary source. Otolaryngol Head Neck Surg. 2001 Mar;124(3):331-3. doi: 10.1067/mhn.2001.114309.
31. Lindberg R. Distribution of cervical lymph node metastases from squamous cell carcinoma of the upper respiratory and digestive tracts. Cancer. 1972 Jun;29(6):1446-9. doi: 10.1002/1097-0142(197206)29:6<1446::aid-cncr2820290604>3.0.co;2-c.
32. Kothari P, Randhawa PS, Farrell R. Role of tonsillectomy in the search for a squamous cell carcinoma from an unknown primary in the head and neck. Br J Oral Maxillofac Surg. 2008 Jun;46(4):283-7. doi: 10.1016/j.bjoms.2007.11.017.
33. Farooq S, Khandavilli S, Dretzke J, Moore D, Nankivell PC, Sharma N. et al. Transoral tongue base mucosectomy for the identification of the primary site in the work-up of cancers of unknown origin: systematic review and meta-analysis. Oral Oncol. 2019 Apr:91:97-106. doi: 10.1016/j.oraloncology.2019.02.018.
34. Fu TS, Foreman A, Goldstein DP, de Almeida JR. The role of transoral robotic surgery, transoral laser microsurgery, and lingual tonsillectomy in the identification of head and neck squamous cell carcinoma of unknown primary origin: a systematic review. J Otolaryngol Head Neck Surg. 2016 May 4;45(1):28. doi: 10.1186/s40463-016-0142-6.
35. Doescher J, Veit JA, Hoffmann TK. [The 8th edition of the AJCC Cancer Staging Manual: Updates in otorhinolaryngology, head and neck surgery]. HNO. 2017 Dec;65(12):956-961. doi: 10.1007/s00106-017-0391-3.
36. Mehanna H, Taberna M, von Buchwald C, Tous S, Brooks J, Mena M. et al. Prognostic implications of p16 and HPV discordance in oropharyngeal cancer (HNCIG-EPIC-OPC): a multicentre, multinational, individual patient data analysis. Lancet Oncol. 2023 Mar;24(3):239-251. doi: 10.1016/S1470-2045(23)00013-X.
37. Chen AM, Meshman J, Hsu S, Yoshizaki T, Abemayor E, John MS. Oropharynx-directed ipsilateral irradiation for p16-positive squamous cell carcinoma involving the cervical lymph nodes of unknown primary origin. Head Neck. 2018 Feb;40(2):227-232. doi: 10.1002/hed.24906.
38. Gorolay VV, Niles NN, Huo YR, Ahmadi N, Hanneman K, Thompson E. et al. MRI detection of suspected nasopharyngeal carcinoma: a systematic review and meta-analysis. Neuroradiology. 2022 Aug;64(8):1471-1481. doi: 10.1007/s00234-022-02941-w.
39. King AD, Woo JKS, Ai QY, Chan JSM, Lam WKJ, Tse IOL. et al. Complementary roles of MRI and endoscopic examination in the early detection of nasopharyngeal carcinoma. Ann Oncol. 2019 Jun 1;30(6):977-982. doi: 10.1093/annonc/mdz106.
40. Luo WJ, Feng YF, Guo R, Tang LL, Chen L, Zhou GQ. et al. Patterns of EBV-positive cervical lymph node involvement in head and neck cancer and implications for the management of nasopharyngeal carcinoma T0 classification. Oral Oncol. 2019 Apr:91:7-12. doi: 10.1016/j.oraloncology.2019.01.012
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Direitos de Autor (c) 2026 Diogo Cunha-Cabral, Pedro Marques Gomes, José Pedro Pereira, André Alves Carção, Nuno Oliveira, Marta Vilaça, Gustavo Lopes, José Ferreira Penêda

Este trabalho encontra-se publicado com a Licença Internacional Creative Commons Atribuição-CompartilhaIgual 4.0.



