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February 15, 1985

Diagnosis of Meralgia Paresthetica-Reply

Author Affiliations

Wayne State University Detroit

JAMA. 1985;253(7):976. doi:10.1001/jama.1985.03350310058009

In Reply.—  Our experience using contact thermography as a diagnostic tool for MP includes 11 patients; six of these cases have been reported.1 In our series, we have found one isothermic lesion in a patient with bilateral MP, eight hyperthermic cases, including one bilateral, and two hypothermic lesions.Thus far, in agreement with Dr Ecker's contention, we have not been able to identify a relationship between the duration or severity of symptoms and the magnitude of the thermographic changes. Through our experience with entrapment neuropathies, particularly the carpal tunnel syndrome, we are moving away from such traditional thermographic terms as "isothermic," "hyperthermic," and "hypothermic." We have seen on multiple occasions that the thermographic image of the same lesion has been either hot or cold at different times during the same examination in response to stress maneuvers.It is generally assumed that all MPs involve the same underlying pathophysiology. Yet,