Deletion (12)(q15q21.2).

Deletion (12)(ql5q21.2)The infant who is the subject of this report is, to our knowledge, the second reported case with a deletion, interstitial or terminal, of the long arm of chromosome 12.The patient was a three and a half month old white female.She was the product of an uncomplicated term pregnancy and normal spontaneous vaginal delivery to aJ32 year old, G2P1, healthy mother and a 40 year old healthy father.Birth weight was 3300 g.Paternal history was significant for a child with Potter's syndrome from an earlier marriage.After going home at three days without problems she developed a unilateral breast abscess aged three weeks and required admission to hospital.Weight gain was slow in her first few weeks, reflecting an initial poor suck, but thereafter was satisfactory.At 14 weeks the proband (fig 1) was 61-5 cm (50th centile) in length, 5-19 kg (10th to 25th centile) in weight, and the head circumference was 39-5 cm (10th centile).