Resumo

MASDEU, Martín et al. Mediastinal Teratoma with Malignant Areas: Case Report and Discussion. Rev. am. med. respir. [online]. 2022, vol.22, n.1, pp.57-61. ISSN 1852-236X.

Several types of tumors may occur in the anterior mediastinum, of which germ cell tumors constitute 10-15%, the most frequent being the mature teratoma. The finding of a malignant component in mature teratoma is rare, and few cases of malignancies such as squamous carcinoma, adenocarcinoma, sarcoma, or neuroendocrine tumors have been described. We present the case of a young woman diagnosed with mature teratoma and development of adenocarcinoma within tumor wall, conferring an unfavorable prognosis, with poorly defined treatment options given the exceptional a mature of the disease. This clinical case highlights the fact that careful histopathological sampling of solid areas is required in a teratoma, even in young patients whose lesions are smaller. Although there are recommendations in favor of chemotherapy, they are based on series of a limited number of patients. Complete resection of the neoplasm and multidisciplinary follow-up would be of relevance for the control of local and distant recurrences.

Palavras-chave : Teratoma; Mediastinal Neoplasms; Adenocarcinoma.

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