. Evolution and disease . Fig. 39.—A side view of the neck; the figures II, IIIand IV indicate the common situations of branchialfistuloe. patches of skin, natural cicatrices, indicating the points ofobliteration of the clefts. It is by no means infrequentto find the cutaneous orifice of a persistent branchial slitsurmounted by a cutaneous tag, which often contains asmall nodule of yellow elastic cartilage resembling thatfound in the pinna; these projecting pieces of skin often VESTIGIAL STRUCTURES. 83 occur unassociated with fistulae, and are most commonin two situations in theneck, at the sp
. Evolution and disease . Fig. 39.—A side view of the neck; the figures II, IIIand IV indicate the common situations of branchialfistuloe. patches of skin, natural cicatrices, indicating the points ofobliteration of the clefts. It is by no means infrequentto find the cutaneous orifice of a persistent branchial slitsurmounted by a cutaneous tag, which often contains asmall nodule of yellow elastic cartilage resembling thatfound in the pinna; these projecting pieces of skin often VESTIGIAL STRUCTURES. 83 occur unassociated with fistulae, and are most commonin two situations in theneck, at the spotsmarked III and IV infig. 39. As a rule theyare symmetrical; usuallythey are short, oftenlooking like mere pim-ples on the side of theneck. In some casesthey may attain alength of two or threecentimetres. A verylarge one is repre-sented as it grew. Fig. 40.—A Girl with a cervical ear orauricle. from the side of a girlsneck, in fig. 40, and ina child, fig. 41. Thesefistulae and cervicalauricles, or ears, asthey are called, usuallyaffect many members ofa family; the mothermaypossesscervical auri-cles, and one child havea cervical fistula, whilsta third may have fistulaeand auricles combined. The question natu-rally suggests itself, ifthese fistulae and auricles occur in man they should also
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Keywords: ., bookcentury1800, bookdecade1, booksubjectcongenitalabnormalities
