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Absent inner dynein arms in a fetus with familial hydrocephalus‐situs abnormality
Author(s) -
Kosaki Kenjiro,
Ikeda Kazushige,
Miyakoshi Kei,
Ueno Mari,
Kosaki Rika,
Takahashi Daisuke,
Tanaka Mamoru,
Torikata Chikao,
Yoshimura Yasunori,
Takahashi Takao
Publication year - 2004
Publication title -
american journal of medical genetics part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.064
H-Index - 112
eISSN - 1552-4833
pISSN - 1552-4825
DOI - 10.1002/ajmg.a.30177
Subject(s) - ventriculomegaly , hydrocephalus , fetus , cilium , abnormality , medicine , anatomy , pregnancy , biology , genetics , surgery , psychiatry
We report a family in which a healthy, unrelated couple had a male fetus with bilateral ventriculomegaly, a normal liveborn girl, a hydatidiform molar pregnancy, a female fetus with ventriculomegaly and situs abnormalities, and a male fetus with hydrocephalus, a three‐lobed left lung, and defective tracheal cilia with absent inner dynein arms and a single centriole. A mutation analysis of FOXJ1 and POLL in the last fetus with ciliary defect revealed no mutation within their coding regions. The presence of three affected fetuses of both sexes in a family with phenotypically normal parents suggests that the condition was inherited as an autosomal recessive trait. A thorough evaluation of the thoracic and abdominal situs is recommended before counseling a family of a child with hydrocephalus, because the recognition of situs defects may point to the diagnosis of primary ciliary defect and recurrence risk of 25% for siblings. This figure is much higher than the general risk of 1–2% for siblings of a patient with isolated hydrocephalus. © 2004 Wiley‐Liss, Inc.