Incidence of Gonadal Cancer in the Quahaug Mercenaria mercenaria

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Abstract
Mercenaria mercenaria were collected during the summers of 1969 and 1970 in the vicinity of Rose Island Narragansett Bay, Rhode Island. This study supports the first 3 cases of primary ovarian neoplasms and indicates the incidence of these anomalies in the quahaug. Histopathological examination revealed that out of 316 fe males, 12 had ovarian neoplasms, including 1 which had neoplastic cellular invasion of the red gland, heart and genital pores. Among 223 males 2 had testicular neoplasms devoid of invasive properties. Microscopical examination of both male and female neoplasms revealed the morphological and nuclear cytological characteristics of the tumors to be identical and of germ cell origin.

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