听神经瘤是一种非癌性(良性)并且通常生长缓慢的肿瘤，它发生在从内耳到大脑的主神经上。

Acoustic neuroma is a noncancerous (benign) and usually slow-growing tumor that develops on the main nerve leading from your inner ear to your brain.

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当时的肿瘤是能生产激素，是功能性肿瘤，其致死率远远远远低于非功能性肿瘤。

This means the tumor was -even then - clearly still producing hormones, proving it was a functional one, which is far less deadly than the nonfunctional ones.

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食道癌，多发性肿瘤性血癌，非霍奇金淋巴瘤等癌症在“趋势”上有微妙的增加。 但很难加以概括，Prezant说。

There are "trends" -- subtle increases -- in gastro-esophageal cancers and blood cancers such as multiple myeloma, and non-Hodgkin's lymphoma, said Prezant, but they are difficult to generalize.

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