Definition of Ipsilateral
Ipsilateral: On the same side. A study of "ipsilateral breast tumor recurrence following lumpectomy and radiation therapy" pertains to cancer returning in the same breast as has been treated. A lesion in the right side of the brain may affect vision ipsilaterally, in the right eye.
The opposite of ipsilateral is contralateral which refers to the other or opposite side.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=4041
Last Editorial Review: 4/6/2004
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