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- W2024883758 abstract "Germ-cell neoplasms, in particular teratomas with immature and mature somatic type tissues, are some of the most commonly found tumors in children. Approximately 5% of these neoplasms appear in one of several extracranial sites in the head and neck region. This study reports the clinical, pathologic and immunohistochemical findings in six germ-cell neoplasms occurring in the neck and facial areas. A mass was recognized at birth in five children, and the sixth patient was 2 1/2 years old at diagnosis. Four of the six neoplasms contained one or another element of endodermal sinus tumor; two of these had a mixed pattern of endodermal sinus tumor and teratoma. The other two cases were purely teratomas. The serum alpha-fetoprotein was known to be elevated in three children whose tumors had endodermal sinus elements; it returned to normal level in two of the children, but remained high in the one fatal case. Placental alkaline phosphatase and alpha-fetoprotein were demonstrated immunohistochemically in two of the three cases, with available tissue containing endodermal sinus tumor. Teratomatous metastases in ipsilateral cervical lymph nodes were found in one patient with a pure teratoma; that patient is disease-free one year after surgery. Only nine previous examples of endodermal sinus tumor have been reported in the head and neck region, exclusive of the central nervous system. There is one other case in the literature of a congenital cervicothyroidal teratoma with metastatic disease. These six neoplasms illustrate the clinical and pathologic spectrum in this nosologically homogeneous, but morphologically diverse, category of tumors." @default.
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- W2024883758 date "1990-03-01" @default.
- W2024883758 modified "2023-10-15" @default.
- W2024883758 title "Germ cell neoplasms of head and neck soft tissues: A pathologic spectrum of teratomatous and endodermal sinus tumors" @default.
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- W2024883758 doi "https://doi.org/10.1016/0046-8177(90)90232-t" @default.
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