File:Modern surgery, general and operative (1914) (14759161766).jpg

Identifier: modernsurgerygen1914daco (find matches)
Title: Modern surgery, general and operative
Year: 1914 (1910s)
Authors: Da Costa, J. Chalmers (John Chalmers), 1863-1933
Subjects: Surgery Surgery, Operative
Publisher: Philadelphia, London, W. B. Saunders company
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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the wall of the cystoma. Mucous Cystomata.—A mucous cystoma, like an atheromatous cystoma,is due to the displacement of epithelium, but in the former condition it is pave-ment-epithelium and in the latter it is columnar epithelium. The latter is filledwith a mucoid material and the former with a fatty debris. Such a mucousC3^stoma must not be confused with a retention cyst of a mucous membrane.Mucous cystomata are found particularly about the lips, mouth, and pharynx.They rarely attain any considerable size. Cystomata lined with ciliatedepithelium may arise in the testicle, the liver, and the brain. Treatment.—Incise, cauterize, and drain. The wall is so delicate thatexcision is rarely possible. Mesoblastic Cystomata.—They are lined with endothelial cells. Theycontain serous fluid, often grow to a large size, and sometimes disappearspontaneously. )\Iesoblastic cystomata are probably distended lymph-spaces.They are congenital and are most common in the neck, axilla, and perineum.
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Fig. 184.—Hjdrocele of neck in boy nine weeks of age. In one case seen by the author such a cystoma of the neck appeared late inlife, but it is probable that it had existed in childhood, and after disappearingfor a long time had reappeared. The most common form of mesoblasticcyst is known as hydrocele of the neck (Fig. 184). Treatment.—Excision is ver>^ difiicult. In i case in which I assistedProfessor Keen it was successfully accomplished. The usual treatment isto tap frequently, after each tapping washing out with carbolic acid (2 to 5per cent.) and applying pressure. Cystomata of bone, of the thyroid gland, of the mammary gland, etc., areconsidered in the sections on Regional Surgery. Teratomata.—The teratomata contain tissues or higher structures de-rived from two or all of the blastodermic layers. The tumors we previouslyconsidered are derived from only one of these layers. The elder Senn, in hiswork on Tumors, thus defines a teratoma: A teratoma is a tumor com-posed of

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