Background Incontinentia pigmenti (IP) is a rare X-linked dominant disorder affecting the skin and other ectodermal tissues that is caused by a mutation of the IKBKG/NEMO gene. Case presentation We describe a Turkish family with IP. Sanger sequencing was performed in our patient with IP, and we identified DNA variant c.172_173delAA (p.Asn58SerfsTer79) in IKBKG. We found the same mutation in the patient's mother and grandmother. Conclusion Our report expands the mutation spectrum in this

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... and provides valuable information on the importance of the IKBKG. Our study shows that confirmation of the mutation analysis of IP in the suspected cases is necessary for future planning pregnancies.