Summary
The following malformations were observed in a human embryo of 28 mm crown-rump length obtained at operation for tubal rupture in a case of extrauterine pregnancy:
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1.
Secondary anophthalmia with dysplasia and in part aplasia of the diencephalon. Rudiments of both eyes and eyestalklike proliferations within the diencephalon. No lenses and on the left side only a palpebral fissure. Hypoplasia of the right telencephalic hemisphere and of the right side of diencephalon, mesencephalon and proximal parts of the medulla oblongata. Pseudotumorous proliferations in the diencephalon, in the alar plate of the medulla oblongata (protruding into the fourth ventricle) and in the arachnoid. Hypoplasia of the right internal, middle, and external ear. Dysplasia and in part aplasia of facial osseous elements (cebocephalia).
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Proximal esophageal atresia with distal tracheoesophageal fistula.
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A Fallot's tetralogy with right-sided aortic arch and regressive right-sided ductus arteriosus, tricuspid atresia, hypoplasia of the right ventricle with excessive hypertrophy of its wall, and hypoplasia of the pulmonary trunk. Single left superior vena cava and abnormal, semicircular course of the stems of both coronary arteries.
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We are grateful to Miss D.T. Kiers (Dept. of Clinical Pathology) for technical assistance and to Dr. J. Moll for cooperation during the different stages of preparation of the manuscript. We also thankfully acknowledge the photographic work of Miss P. Delfos and Mr. W. van den Oudenalder.
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Schenk, V.W.D., Geene, M.J., Klein, H.W. et al. A human embryo of 28 mm crown-rump length with cerebral, esophagotracheal and cardiovascular malformations. Anat. Embryol. 150, 53–62 (1976). https://doi.org/10.1007/BF00346286
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DOI: https://doi.org/10.1007/BF00346286