Bloom's syndrome: a probable new case with cytogenetic findings.

Abstract
A 19-yr-old Jordanian girl, born to 1st cousin parents, has most features of Bloom''s syndrome but is tall and has secondary amenorrhea. Blood and skin cultures revealed a normal diploid female complement, but about 1/4 of the cells show chromosome or chromatid gaps, breaks and rearrangements. These abnormalities were localized after trypsin banding and were non-randomly distributed along the chromosomes.