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March 1966

Sensory and Neurohistological Correlates of Cutaneous Hyperpathia

Author Affiliations

From the Division of Neurological Surgery, Department ot Surgery, State University of New York, Upstate Medical Center, Syracuse, NY.

Arch Neurol. 1966;14(3):313-320. doi:10.1001/archneur.1966.00470090085012

SENSORY PHENOMENA and the associated cutaneous neurohistological changes which characterize punctate hyperpathic spots have seldom been examined or correlated. Such a correlative study has been the primary concern of this clinical investigation.

"Hyperpathia" in this report denotes a state of sensibility in which a subject reports the sensation elicited by a non-noxious cutaneous stimulus as "painful," or in which a mildly noxious stimulus elicits a response which is characterized by overreaction, radiation, and persistence. "Hypesthetic" and "hypalgesic" describe skin responding only to a more intense stimulus than is required to elicit a response from normal skin, or describe an area in which the subject feels a suprathreshold stimulus as less painful or lighter than in normal skin. "Anesthetic" (clinically) refers to spots insensitive to cotton wisps or a single light pinprick.

Material and Methods  Clinical data were gathered from 20 patients demonstrating hyperpathia from a variety of lesions in the

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