Produção Nacional
Revisado por pares
Mature T/NK‐Cell lymphomas of the oral and maxillofacial region: A multi‐institutional collaborative study
2021; Wiley; Volume: 50; Issue: 6 Linguagem: Inglês
10.1111/jop.13205
ISSN1600-0714
AutoresJosé Alcides Almeida de Arruda, Thamiris de Castro Abrantes, John Lennon Silva Cunha, Ana Luiza Oliveira Corrêa Roza, Michelle Agostini, Aline Corrêa Abrahão, Nathalie Henriques Silva Canêdo, Denize D’Azambuja Ramos, Cristiane Milito, Flávia Sirotheau Corrêa Pontes, Hélder Antônio Rebelo Pontes, Marinez Bizarro Barra, Virgílio Gonzales Zanella, Marco Antônio Trevizani Martins, Manoela Domingues Martins, Mônica Simões Israel, NATHÁLIA DE ALMEIDA FREIRE, Maria Eduarda Zeraik Barreto, Celeste Sánchez‐Romero, Román Carlos, Lucas Guimarães Abreu, Pablo Agustín Vargas, Oslei Paes de Almeida, Felipe Paiva Fonseca, Mário José Romañach, Ricardo Alves Mesquita, Bruno Augusto Benevenuto de Andrade,
Tópico(s)T-cell and Retrovirus Studies
ResumoAbstract Background The diagnosis of oral and maxillofacial mature T/NK‐cell neoplasms is challenging because of their rarity, morphological heterogeneity and complex immunophenotype with scarce available data describing their clinical and microscopic aspects. Therefore, in this study, we investigated a series of mature T/NK‐cell neoplasms affecting this anatomical region and provided an updated literature review. Methods Cases diagnosed as mature T/NK‐cell lymphomas affecting the oral and maxillofacial region were retrospectively retrieved from six pathology files and their diagnoses were confirmed using haematoxylin and eosin‐stained slides, immunohistochemical reactions and in situ hybridization for Epstein‐Barr virus (EBV) detection. Patients’ clinical data were collected from their pathology forms. Results A total of 22 cases were included in this study. Eleven (50%) consisted of extranodal NK/T‐cell lymphomas, nasal type; eight (36.4%) were peripheral T‐cell lymphomas, NOS; two (9.1%) were adult T‐cell leukaemia/lymphomas, and one (4.5%) was an ALK‐positive anaplastic large cell lymphoma. Overall, males predominated, with a mean age of 55.7 years. The palate was the most affected site (50%), and tumours usually presented as destructive and painful ulcers. EBV was present in all cases of extranodal NK/T‐cell lymphoma nasal type but was absent in the other subtypes. Conclusion Among mature T/NK‐cell lymphomas of the oral and maxillofacial region, extranodal NK/T‐cell lymphoma, nasal type and peripheral T‐cell lymphoma, NOS predominated. Older men were the most affected patients, and this heterogeneous group of neoplasms has a very aggressive clinical behaviour.
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