The appearance of a trigeminal neuropathy in a patient with an active solid tumor elsewhere is most likely due to metastasis.
Isolated trigeminal neuropathy may indicate metastasis in patients with active solid tumors; hypothesis-generating and leaves open systematic validation.
The occurrence of isolated metastasis to the trigeminal nerve or ganglion form a distant, solid tumor is rare. This communication describes a patient with carcinoma of the lung; an isolated trigeminal neuropathy developed and at autopsy proved to be secondary to metastasis to the trigeminal ganglion. The appearance of a trigeminal neuropathy in a patient with an active solid tumor elsewhere in the body is most likely due to metastasis.
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Peyton Delaney (1977) studied this question.
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