This type of tumors is the most benign among other tumors. The very term "adenoma of the salivary gland "Is used only to describe the very form of the tumor, its structure. The term for a disease is "mixed tumor". This name was suggested by one of the scientists of pathomorphology R.Virkhov in 1863 the name completely reflects all the conclusions of the researchers who talked about cutaneous and mesenchymal tumor growth.
Another term used to refer to a tumor in European and American literature is pleomorphic adenoma.
The macroscopic form of the tumor is almost always the same, the tumor in the cells and does not affect the tissues of the salivary gland, it can be of various shapes round or oval, as it may be of the lobular type. The glomeruli of an adenoma in its thickness can be very different, or it can not and can not be.
In appearance, the tumor tissues, when cut, appear dense clots sometimes with a cartilaginous tissue, a white shiny color; if a tumor is large, bruising and necrosis of the cells can be seen.
Such a mixed adenoma is very different in its morphological properties. Planeform adenomas can appear more than once in the same place, because they have many foci of nucleation, so in this case it will be very difficult to surgically solve the problem.
The adenoma of the salivary gland mostly has a small and delimited encapsulated node, the size of the adenoma is from 1 to 3 cm in diameter, but this can not be said for the membrane shape, which has a multifocal and multislate appearance, in the tissue section it will look like a monotonous liquid, color will differ in a gray-white or brown tinge.
Basal cell gland adenoma
Basaloma is a rare form of a benign tumor, since it lacks a mixed and hodroidal stromal element that is present in the mixed tumor.
Tibural adenoma or basal cell gland for it is not a recurrence, but there are exceptions, if it is a membrane type arising again, but the percentage is not so great and 25%. In rare cases, the adenoma can be transformed into a malignant tumor.
The basis of the tumor often has a multicellular and vascularized appearance. Prismatic skin cells, of which adenoma consists, is enclosed in a glomerulus of anastomosing beams connected to each other.
This type of adenoma is not common, only a few percent in the case of development in small SJ, and in large lesions, only 1% is observed.
The disease is often observed in people whose age has crossed the bar for 60 years. But this is only the average age, in general people are susceptible to this disease from 30 years and up to 90. Those who have not yet hit 50 chances, the appearance of adenoma of the salivary gland are very small, as for the frequency of the disease among men and women is in the range of 1: 1.8.
The disease has several more characteristic for her names adenomatosis of the small salivary gland or a vacation adenoma.
Okoktitoma, Cystadenoma is also a vacation adenoma, this type of salivary gland tumor is localized by the lesion of the tissues of the upper lip, accounting for 80% of the total number. Further, the frequency of cell damage is adenoma of the mucous membrane of the cheeks, is 9.5%. Adenoma is rarely observed in large salivary glands.
For this adenoma it is characteristic to have large sizes, and the main thing is that during its increase there are no manifestations of any symptoms. After the same, the skin around the tumor becomes reddened in consequence of the violation of blood vessels, and in rare cases can acquire a bluish tinge.
In cases of neoplasm of adenomas of multifocal form, lesions can be localized on other parts of the mucous membrane of the cheek and upper lip, but this may not be enough and the lesion may pass to other areas.
The form of such a tumor often has different thickness and dimensions, like the shape of cells of sebaceous cells, in which there are no properties of cellular atypia, it is also possible to observe cystic alterations and neoplasms of squamous cell differentiation.
This adenoma, perhaps, is the most rare form of benign tumors, the percentage of such formations is only 0.1% of all other tumors, the adenoma is clearly delineated. Has its areas of damage and percentage of affected areas, tumors that form near the ear is 50%, formation on the mucous membranes of the cheek and the retromolar zone from 17 to 13%, well, the rest falls on the lower part of the jaw. Tumors develop in people who have crossed the bar in 60 years, but also have a chance to develop in people between 22 and 90 years old. The incidence of the disease among men and women is within 1.6: 1
Many adenomas have small cysts or ectazized duct components. Sebaceous glands vary in size and shape, often in a fibrous base. There may also be symptoms of oncocytic metaplasia. For this type, the figure of mitosis, cell necrosis, the symptoms of cellular atypia, and the follicle of the lymphoid form are not characteristic. In rare cases, the tumor can become part of a hybrid formation.
With regard to treatment, then provided that the tumor is qualitatively surgically removed, there will be no repeated tissue damage.