A Case of a Surviving Male Infant with Incontinentia Pigmenti

Incontinentia pigmenti (Bloch-Sulzberger''s disease) is an X-linked dominantly inherited disorder which is usually lethal in hemizygous males, but rarely found in male infants. It can be explained by the presence of an extra X chromosome (Klinefelter''s syndrome), hypomorphic mutations, and somatic mosaicism. We herein report a rare case of incontinentia pigmenti with typical course of skin manifestation in normal karyotype (46, XY) male infant.