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To the Editor.—
I would like to add that on rectal examination, a spasm of the pyriformis muscle should be considered in differential diagnosis. Anatomically, there is a very close relation with the sciatic nerve.In women, the differential diagnosis is often given away by periodic and episodic painful experiences on intercourse; this pain can be reproduced by manual vaginal examination.
Trommer PR. Weaver's Bottom. JAMA. 1974;228(5):566. doi:10.1001/jama.1974.03230300013007
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