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Definition of Contralateral

Contralateral: On the other side. The contralateral breast is the breast on the other breast. A stroke affecting the right side of the brain may cause contralateral paralysis, affecting the left arm and leg. The opposite of contralateral is ipsilateral which refers to the same side.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=2836
Last Editorial Review: 4/6/2004

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