结论卵巢原发性恶性黑色素瘤来源于卵巢成熟的囊性畸胎瘤恶变，是一种罕见的卵巢肿瘤。

Conclusions Primary ovarian malignant melanoma arising from a mature cystic teratoma with malignant change, was a rare neoplasm.

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结果：卵巢良、恶性肿瘤的CT诊断准确性均为89%，其中畸胎瘤达93%，卵巢区炎性包块的准确性为73%。

Results: CT diagnostic accuracy of malignancy was 89%, while the accuracy of teratoma was 93%, inflammatory masses was 73%.

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结果：卵巢良、恶性肿瘤的CT诊断准确性均为89%，其中畸胎瘤达93%，卵巢区炎性包块的准确性为73%。

Results: CT diagnostic accuracy of malignancy was 89%, while the accuracy of teratoma was 93%, inflammatory masses was 73%.

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