In utero diagnosis of trichothiodystrophy by endoscopically-guided fetal eyebrow biopsy

Rubén A. Quintero, Walter J. Morales, Enid Gilbert-Barness, Jennifer Claus, Patricia W. Bornick, Mary H. Allen, Jeanne Ackerman, Boris Koussef

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Objective: To describe the prenatal diagnosis of trichothiodystrophy (TTD) through endoscopically-guided fetal eyebrow biopsy. Materials and Methods: A 32-year-old patient, gravida 4, para 3, with a history of 2 previous infants affected with TTD was referred at 175/7 weeks for fetal hair biopsy. DNA repair studies had been normal in the previous children. Four 1-mm biopsies were obtained from the external aspect of the fetal eyebrows under direct endoscopic guidance. Fetal hair samples were assessed with polarized microscopy, electron microscopy, hematoxylin and eosin staining, and were also sent for analysis of sulfur content (cystine levels). Results: The fetal eyebrows were the only adequate source of hair in the early second trimester. The biopsy samples yielded adequate material for all tests. Polarized microscopy showed characteristic banding patterns, but trichoschisis was not apparent. Cystine levels (19 μmol/l) in the biopsy sample were significantly lower than an age-matched (fresh spontaneous abortion) control (368 μmol/l). Conclusion: Prenatal diagnosis of TTD is possible in the second trimester through endoscopically-guided eyebrow biopsy. An adequate amount of hair is present in the eyebrows by then, and the disease is already manifest. Analysis of sulfur content of the hair samples is preferred over polarized or electron microscopy, as many classic microscopic findings of TTD may not be present in the early second trimester. Copyright (C) 2000 S. Karger AG, Basel.

Original languageEnglish
Pages (from-to)152-155
Number of pages4
JournalFetal Diagnosis and Therapy
Volume15
Issue number3
StatePublished - May 1 2000

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Trichothiodystrophy Syndromes
Eyebrows
Hair
Biopsy
Second Pregnancy Trimester
Cystine
Prenatal Diagnosis
Sulfur
Microscopy
Electron Microscopy
Spontaneous Abortion
Hematoxylin
Eosine Yellowish-(YS)
DNA Repair
Staining and Labeling

Keywords

  • Fetal skin biopsy
  • Fetoscopy
  • Trichothiodystrophy, prenatal diagnosis

ASJC Scopus subject areas

  • Obstetrics and Gynecology
  • Pediatrics, Perinatology, and Child Health

Cite this

Quintero, R. A., Morales, W. J., Gilbert-Barness, E., Claus, J., Bornick, P. W., Allen, M. H., ... Koussef, B. (2000). In utero diagnosis of trichothiodystrophy by endoscopically-guided fetal eyebrow biopsy. Fetal Diagnosis and Therapy, 15(3), 152-155.

In utero diagnosis of trichothiodystrophy by endoscopically-guided fetal eyebrow biopsy. / Quintero, Rubén A.; Morales, Walter J.; Gilbert-Barness, Enid; Claus, Jennifer; Bornick, Patricia W.; Allen, Mary H.; Ackerman, Jeanne; Koussef, Boris.

In: Fetal Diagnosis and Therapy, Vol. 15, No. 3, 01.05.2000, p. 152-155.

Research output: Contribution to journalArticle

Quintero, RA, Morales, WJ, Gilbert-Barness, E, Claus, J, Bornick, PW, Allen, MH, Ackerman, J & Koussef, B 2000, 'In utero diagnosis of trichothiodystrophy by endoscopically-guided fetal eyebrow biopsy', Fetal Diagnosis and Therapy, vol. 15, no. 3, pp. 152-155.
Quintero RA, Morales WJ, Gilbert-Barness E, Claus J, Bornick PW, Allen MH et al. In utero diagnosis of trichothiodystrophy by endoscopically-guided fetal eyebrow biopsy. Fetal Diagnosis and Therapy. 2000 May 1;15(3):152-155.
Quintero, Rubén A. ; Morales, Walter J. ; Gilbert-Barness, Enid ; Claus, Jennifer ; Bornick, Patricia W. ; Allen, Mary H. ; Ackerman, Jeanne ; Koussef, Boris. / In utero diagnosis of trichothiodystrophy by endoscopically-guided fetal eyebrow biopsy. In: Fetal Diagnosis and Therapy. 2000 ; Vol. 15, No. 3. pp. 152-155.
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