The pathology and surgical treatment of tumors . rger swellings. The columnar epithelial cells are attached to the basement mem-brane of the delicate , and they produce the mucu.«5, thecharacteristic contents of a cyst of the mucous membrane. By pres- RE TENTION- C YS TS. 66l sure the columnar epithelial cells are often flattened, appearing underthe microscope as squamous cells. The mucus in old cysts is usuallyliquefied and converted into a serous fluid, so that old mucous cystspresent themselves as serous cysts. These cysts were called by the oldauthors hydatids. Inflammation of th
The pathology and surgical treatment of tumors . rger swellings. The columnar epithelial cells are attached to the basement mem-brane of the delicate , and they produce the mucu.«5, thecharacteristic contents of a cyst of the mucous membrane. By pres- RE TENTION- C YS TS. 66l sure the columnar epithelial cells are often flattened, appearing underthe microscope as squamous cells. The mucus in old cysts is usuallyliquefied and converted into a serous fluid, so that old mucous cystspresent themselves as serous cysts. These cysts were called by the oldauthors hydatids. Inflammation of the cysts transforms mucous cysts into acne andmolluscum in the same manner as retention-cysts of the sebaceousglands of the skin are formed. If the larger mucous cysts becomeelongated, polypoid, we speak of polypi cystici or hydatidosi. Thisform of mucous cyst is seen frequently in the rectum and in the neckof the uterus. Mucous cysts of the mucous membrane of the mouth are quitecommon. They contain a viscid fluid, and after spontaneous rupture. Fig. 476.—Transverse section through the upper part of the cervix, showing the entire mucous mem-brane (after Cornil). The central cavity is the cervical canal; (5, i^, internal surface of mucous membrane,presenting small folds, superficial glandular depressions, and large incisions of the arbor vitee {d) ; g,g, deepglands ; a, a. ovules of Naboth ; m, m, muscular tissue of the uterine wall. they often leave a circular deep ulcer, which usually heals promptlyafter thorough cauterization with nitrate of silver. They are met withmost frequently in the mucous membrane of the lips. Their walls areexceedingly delicate, and the mucous membrane covering them is sothin that it is generally excised with the cyst. Multiple mucous cysts of the inner surface of the lips result in 662 PATHOLOGY AND TREATMENT OF TUMORS. such great thickening of the hps that they appear to be double. Theremoval of the cysts restores the normal size and shape of the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectneoplas, bookyear1895
