Meckel-Gruber syndrome associated with Rokitansky-Kuster-Hauser syndrome

Recurrent aberrations identified by array-CGH in patients with Mayer-Rokitansky-Küster-Hauser syndrome

OBJECTIVE

To identify genetic causes of Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome.

DESIGN

Prospective laboratory study.

SETTING

University hospital.

PATIENT(S)

Fifty-six patients with MRKH syndrome.

INTERVENTION(S)

Identification of microdeletions and -duplications in a group of 48 MRKH patients by array-CGH. Results obtained by array-CGH were confirmed by RT-qPCR. Sequential analysis of two candidate genes LHX1 and HNF1B in a group of 56 MRKH patients.

MAIN OUTCOME MEASURE(S)

Identification of chromosomal regions and genes (recurrent and private) associated with MRKH syndrome.

RESULT(S)

We could delineate three definitively relevant regions (1q21.1, 17q12, and 22q11.21) and suggest that LHX1 und HNF1B are candidate genes for MRKH syndrome, because we identified recurrent deletions affecting these genes and a possible causative missense mutation in LHX1.

CONCLUSION(S)

Our findings suggest that different chromosomal regions are associated with MRKH syndrome.

Meckel Gruber syndrome: a first trimester diagnosis of a recurrent case

We report of a case of Meckel Gruber Syndrome (MGS) in a woman, who suffered previously from a pregnancy with the same disorder. MGS, consisting of an occipital encephalocele, bilateral cystic kidneys and postaxial polydactyly, is a rare autosomal recessive disorder, with a recurrence risk of 25%. With the present technology, a targeted ultrasound in the late embryonic or early fetal stages of pregnancy has the potential to diagnose this syndrome. Clinical screening in further pregnancies is of utmost importance and the management of such cases is presented.