To the Editor: The article by Blau et al. (N.E.J.M., October 16, 1969) reports the benign course of trigeminal sensory neuropathy in 10 patients. We should like to describe two patients with apparent transient trigeminal sensory neuropathy associated with typical Bell's palsy. Because we were puzzled by the simultaneous involvement of the two cranial nerves or their nuclei, these patients were hospitalized for extensive investigations for possible brain-stem lesions. The first patient, J.T. (A065235), a 36-year-old white housewife, was seen because of facial weakness and numbness for five days. She had complete weakness, of the lower-motor-neuron type, on the right. © 1970, Massachusetts Medical Society. All rights reserved.