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Updated: May 23, 2025
This is met with chiefly in the breast and ovary, and the tumour resembles the cystic adenoma, but it tends to infect its surroundings and gives rise to secondary growths. It almost never infects the lymph glands. A dermoid is a tumour containing skin or mucous membrane, occurring in a situation where these tissues are not met under normal conditions.
Dermoid cysts of the ovary may consist only of a wall of connective tissue lined with epidermis and containing distinctly epidermic scales which, however, may be rolled up in firm masses of a more or less soapy consistency; this variety is called by Orth epidermoid cyst; or, according to Warren, a form of cyst made up of skin containing small and ill-defined papillae, but rich in hair follicles and sebaceous glands.
The skin dermoid, or derma-cyst as it has been called by Askanazy, arises from a portion of epiblast, which has become sequestrated during the process of coalescence of two cutaneous surfaces in development. This form is therefore most frequently met with on the face and neck in the situations which correspond to the various clefts and fissures of the embryo.
According to Senn, the swelling never caused any pain or inconvenience until it inflamed, when it opened spontaneously and suppurated, discharging a large quantity of offensive pus, hair, and sebaceous material, thus proving it to have been a dermoid.
Have you ever had any personal experience of dermoid cysts? We had one in Cullingworth's practice just before his illness, and we were both much excited about it. They seem to me to be one of those wee little chinks through which one may see deep into Nature's workings. In this case the fellow, who was a clerk in the post office, came to us with a swelling over his eyebrow.
Terrier describes double ovariotomy for fibromata in a woman of seventy-seven. Aron speaks of an operation for pilous dermoid of the ovary in a woman of seventy-five. Shepherd reports a case of recurrent proliferous cyst in a woman of sixty-three, on whom successful ovariotomy was performed twice within nine months.
Dermoids of the rectum are reported. Duyse reports the history of a case of labor during which a rectal dermoid was expelled. The dermoid contained a cerebral vesicle, a rudimentary eye, a canine and a molar tooth, and a piece of bone. There is little doubt that many cases of fetus in fetu reported were really dermoids of the scrotum.
If the external orifice becomes occluded, there results a dermoid cyst. Tubulo-dermoids arise from embryonic ducts and passages that are normally obliterated at birth, for example, lingual dermoids develop in relation to the thyreo-glossal duct; rectal and post-rectal dermoids to the post-anal gut; and branchial dermoids in relation to the branchial clefts.
It was a pedunculated growth, and it was undoubtedly vesical and not expelled from some ovarian source through the urinary passage, as sometimes occurs. The simpler forms of the ordinary dermoid cysts contain bone and teeth.
Ward reports the successful removal of a dermoid cyst weighing 30 pounds from a woman of thirty-two, the mother of two children aged ten and twelve, respectively. The report is briefly as follows: "The patient has always been in good health until within the last year, during which time she has lost flesh and strength quite rapidly, and when brought to my hospital by her physician, Dr.
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