RT Journal Article SR Electronic T1 Primary amenorrhoea due to ovarian dysgenesis: a previously undescribed chromosome 12 abnormality JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr0720103201 DO 10.1136/bcr.07.2010.3201 VO 2011 A1 Paul Grant A1 David Lipscomb YR 2011 UL http://casereports.bmj.com/content/2011/bcr.07.2010.3201.abstract AB This case describes for the first time a de novo chromosomal abnormality (46, XX, inv dup del(12)(qter-p13.3::p13.3-p12.3:)dn.ish inv dup del(12)(TEL-ETV6++) which produced the phenotype of a female with primary ovarian failure and subsequent osteopenia in early adult life. This warranted treatment with oestrogen replacement therapy and close supportive monitoring.