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Sporadic case of trichorhinophalangeal syndrome type III in a European patient.

par Vilain, Catheline ;Sznajer, Yves ;Rypens, Françoise ;Désir, Daniel ;Abramowicz, Marc
Référence American journal of medical genetics, 85, 5, page (495-497)
Publication Publié, 1999-08

Article révisé par les pairs

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Résumé :

Trichorhinophalangeal syndrome type III (TRP III) shares common traits with TRP I and II, including sparse hair, a "pear-shaped" nose, osteodysplasia with cone-shaped epiphyses, and autosomal dominant inheritance, but is distinguished by the presence of severe brachydactyly. TRP III was first described in 1984 in Japanese patients, one sporadic case [Sugio and Kajii, 1984: Am. J. Med. Genet. 19:741-753,1984] and two families [Niikawa and Kamei, 1986: Am. J. Med. Genet. 24:759-760; Nagaï et al., 1994: Am. J. Med. Genet. 49:278-280], and more recently in a Turkish family [Itin et al., 1996: Dermatology 193:349-352]. We report an additional observation in a patient of European descent, who presented with short stature, cone-shaped epiphyses, sparse hair, a pear-shaped nose, normal intelligence and severe brachydactyly. Neither parent had manifestations of TRP and there was no other reported case in the family, indicating a presumably fresh mutation. Our observation refines the clinical spectrum of TRP III in another ethnic background and may be of help in identifying the gene or genes for TRP syndromes.