Fetal goitrous hypothyroidism followed by neonatal transient hyperthyroidism: A case report

Tadashi Matsumoto; Kei Miyakoshi; Kenji Kasai; Hitoshi Ishimoto; Mamoru Tanaka; Kazushige Ikeda; Yasunori Yoshimura

doi:10.1159/000073143

Fetal goitrous hypothyroidism followed by neonatal transient hyperthyroidism: A case report

Tadashi Matsumoto, Kei Miyakoshi, Kenji Kasai, Hitoshi Ishimoto, Mamoru Tanaka, Kazushige Ikeda, Yasunori Yoshimura

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

We report a case of fetal goitrous hypothyroidism followed by neonatal transient hyperthyroidism. A fetal goiter (26 × 38 mm) was detected by ultrasound and magnetic resonance imaging at 29 weeks of gestation. Hypothyroidism was confirmed by cordocentesis, which revealed an elevated TSH (255 μIU/ml) and a low free T4 (0.4 ng/dl). The fetal goiter decreased in size after treatment with four 240-microgram intra-amniotic administrations of levothyroxine. A 2,829-gram male neonate was delivered vaginally at 37 weeks of gestation, showing an euthyroid status at birth. On day 3, free T3 was 6.9 pg/ ml and free T4 was 6.4 ng/dl, indicating hyperthyroidism. This persisted for 4 months. His thyroid functions reverted to normal at 4 months of age and have been within normal range since. Undetermined factors might be involved in the development of thyroid dysfunction in the perinatal period.

Original language	English
Pages (from-to)	459-462
Number of pages	4
Journal	Fetal Diagnosis and Therapy
Volume	18
Issue number	6
DOIs	https://doi.org/10.1159/000073143
Publication status	Published - 2003 Nov 7

Keywords

Fetal goiter
Intrauterine treatment
Thyroid dysfunction

ASJC Scopus subject areas

Pediatrics, Perinatology, and Child Health
Embryology
Radiology Nuclear Medicine and imaging
Obstetrics and Gynaecology

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10.1159/000073143

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abstract = "We report a case of fetal goitrous hypothyroidism followed by neonatal transient hyperthyroidism. A fetal goiter (26 × 38 mm) was detected by ultrasound and magnetic resonance imaging at 29 weeks of gestation. Hypothyroidism was confirmed by cordocentesis, which revealed an elevated TSH (255 μIU/ml) and a low free T4 (0.4 ng/dl). The fetal goiter decreased in size after treatment with four 240-microgram intra-amniotic administrations of levothyroxine. A 2,829-gram male neonate was delivered vaginally at 37 weeks of gestation, showing an euthyroid status at birth. On day 3, free T3 was 6.9 pg/ ml and free T4 was 6.4 ng/dl, indicating hyperthyroidism. This persisted for 4 months. His thyroid functions reverted to normal at 4 months of age and have been within normal range since. Undetermined factors might be involved in the development of thyroid dysfunction in the perinatal period.",

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AU - Miyakoshi, Kei

AU - Kasai, Kenji

AU - Ishimoto, Hitoshi

AU - Tanaka, Mamoru

AU - Ikeda, Kazushige

AU - Yoshimura, Yasunori

PY - 2003/11/7

Y1 - 2003/11/7

N2 - We report a case of fetal goitrous hypothyroidism followed by neonatal transient hyperthyroidism. A fetal goiter (26 × 38 mm) was detected by ultrasound and magnetic resonance imaging at 29 weeks of gestation. Hypothyroidism was confirmed by cordocentesis, which revealed an elevated TSH (255 μIU/ml) and a low free T4 (0.4 ng/dl). The fetal goiter decreased in size after treatment with four 240-microgram intra-amniotic administrations of levothyroxine. A 2,829-gram male neonate was delivered vaginally at 37 weeks of gestation, showing an euthyroid status at birth. On day 3, free T3 was 6.9 pg/ ml and free T4 was 6.4 ng/dl, indicating hyperthyroidism. This persisted for 4 months. His thyroid functions reverted to normal at 4 months of age and have been within normal range since. Undetermined factors might be involved in the development of thyroid dysfunction in the perinatal period.

AB - We report a case of fetal goitrous hypothyroidism followed by neonatal transient hyperthyroidism. A fetal goiter (26 × 38 mm) was detected by ultrasound and magnetic resonance imaging at 29 weeks of gestation. Hypothyroidism was confirmed by cordocentesis, which revealed an elevated TSH (255 μIU/ml) and a low free T4 (0.4 ng/dl). The fetal goiter decreased in size after treatment with four 240-microgram intra-amniotic administrations of levothyroxine. A 2,829-gram male neonate was delivered vaginally at 37 weeks of gestation, showing an euthyroid status at birth. On day 3, free T3 was 6.9 pg/ ml and free T4 was 6.4 ng/dl, indicating hyperthyroidism. This persisted for 4 months. His thyroid functions reverted to normal at 4 months of age and have been within normal range since. Undetermined factors might be involved in the development of thyroid dysfunction in the perinatal period.

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KW - Intrauterine treatment

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Fetal goitrous hypothyroidism followed by neonatal transient hyperthyroidism: A case report

Abstract

Keywords

ASJC Scopus subject areas

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