Volume 1

A system of obstetric medicine and surgery : theoretical and clinical for the student and practitioner / by Robert Barnes and Fancourt Barnes.

Date:
1884-1885
Catalogue details

Licence: Public Domain Mark

Credit: A system of obstetric medicine and surgery : theoretical and clinical for the student and practitioner / by Robert Barnes and Fancourt Barnes. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    c t\r. XIII. substitution of an entirely new and anomalous type of structure in the malformed part, but only in the simple permanence of some of its transitory foetal types, has been reduced within the last thirty years (before 1839) by the able investigations of Wolff, Autenrieth, Meckel, St. Hilaire, and others into one of the most certain and comprehensive, and at the same time one of the most beautiful, laws in teratological anatomy.' Ahlfeld discusses the several theories of the genesis of mal- formations. In the first place, he ranks the cases of splitting of the not-yet differentiated germ. These are the double formations. First of these is entire splitting of the germ. These are:—1. Homologous twins; 2. Omphalopagus (union of twins at the umbilicus); 3. Thoracopagus (union at the chest); 4. Graniopagus, with its varieties ; 5. Sacralteratom ; 6. Incktsions: i. abdominalis (double inclusions), i. testieuli, i. ovarii, i. subcutanea, i. of the mediastinum, i. of the lungs, i. of the cranial cavity. Fcetal transplantations. Partial splitting of the germ. Multip)le splitting of the germ. Homologous triplets. Tricephalus. Splitting of single organs, or duplication.—Doubling of the extremities, of the hands, feet, fingers, toes; splitting of the finger-nail, s])litting of the mammary-gland, or polymastia; doubling of the nipple ; multiplication of the vertebrae (forma- tion of a tail, tail-like outgrowths); multiplication of the ribs, cervical. Giant formations. Gigantic gro^vlh.—Excessive development of one entire half of the body; excessive development of the whole heart; strong development of one-half of the head; one-sided en- largement of one limb; gigantic growth of hands and feet; trophy of the external ear, of the cheeks; macroglossia; gigantic growth of a tooth ; struma congenita; hypertrophy of breast, heart, kidneys, bladder, uterus, clitoris, penis. Splittings of the anterior union line.—These will be noticed hereafter. Splittings of the posterior imion line.—Watery collections in the course of the cerebro-spinal canal.; hydrocephalus;