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They are often associated with some form of defective audition harelip, ocular disturbance, club-feet, congenital hernia, etc. These supernumerary members vary from one to five in number and are sometimes hereditary. Reverdin describes a man having a supernumerary nipple on the right side of his chest, of whose five children three had preauricular appendages.
Morgan reports two cases of congenital macrostoma accompanied by malformation of the auricles and by auricular appendages. Van Duyse mentions congenital macrostoma with preauricular tumors and a dermoid of the eye. Macrostoma is sometimes produced by lateral fissures.
In a case studied by Fevrier the exploration of a lateral pharyngeal fistula produced by the introduction of the sound violent reflex phenomena, such as pallor of the face and irregular, violent beating of the heart. The rarest of the lateral class is the preauricular fissure, which has been observed by Fevrier, Le Dentu, Marchand, Peyrot, and Routier.
There were median fissures of the upper lip, preauricular appendages, oral deformity, and absence of the olfactory proboscis The fetus was therefore a cyclops arrhynchus, or cyclocephalus. Blok describes a new-born infant which lived for six or seven hours, having but one eye and an extremely small mouth.
The knowledge of anomalous auricles is lost in antiquity. As a rule, supernumerary auricles are preauricular appendages. Warner, in a report of the examination of 50,000 children, quoted by Ballantyne, describes 33 with supernumerary auricles, represented by sessile or pedunculated outgrowths in front of the tragus.
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