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Malignant tumors



SARCOM is a malignant tumor from the mesenchymal tissue. Unlike sarcoma cancer, the first metastases are hematogenous. Histogenesis sarcomas are divided into a number of varieties.

From fibrous tissue. 1. Fibrosarcoma. 2. Swelling dermatofibroma (malignant histiocytoma) - unlike other sarcomas, it is characterized by slow growth and does not give metastases for a long time, although it grows invasively and recurs.

From adipose tissue. 1. Liposarcoma is a rare tumor, consists of lipocytes and lipoblasts, is characterized by slow growth and does not give metastases for a long time. Depending on the structure, 4 histological variants of the tumor are distinguished: a) predominantly highly differentiated; b) myxoid; c) squamous; e) polymorphic cell. 2. Malignant hibernoma.

Myosarcomas arise from muscle tissue, and they are divided into leiomyosarcomas and rhabdomyosarcomas.

Of
vascular tissue angiosarcoma occurs, among which are distinguished: a) malignant hemangiopericytoma; b) malignant hemangioendothelioma.

Osteosarcoma arises from bone tissue, which can be osteoblastic (bone formation predominates) and osteolytic [bone is destroyed).

A malignant tumor from cartilage is called chondrosarcoma, from the mesothelium - mesothelial sarcoma, and from the synovial membranes - synovial sarcoma.

According to TNM classification, sarcomas are divided into: Tx - insufficient data for tumor assessment; That - the primary tumor is not determined; T1 - tumor 5 cm; No. - insufficient data on the assessment of regional metastases; N0 - no metastases in regional lymph nodes; N1 - there are regional metastases; Mx - not enough data to determine distant metastases; M0 - no distant metastases; M1 - there are distant metastases.

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Malignant tumors

  1. TUMOR GROWTH. TUMOR PROGRESSION. TUMOR MORPHOGENESIS. INVASION AND METASTASIS OF MALIGNANT TUMORS. BIOMOLECULAR TUMORS MARKERS. ANTITUMOR IMMUNITY. PARANEOPLASTIC SYNDROMES. BASIC PRINCIPLES OF CLASSIFICATION OF TUMORS. MORPHOLOGICAL FEATURES OF TUMORS FROM EPITELIUM AND TUMORS FROM TISSUES - DERIVATED MESENCHIMES
    TUMOR GROWTH. TUMOR PROGRESSION. TUMOR MORPHOGENESIS. INVASION AND METASTASIS OF MALIGNANT TUMORS. BIOMOLECULAR TUMORS MARKERS. ANTITUMOR IMMUNITY. PARANEOPLASTIC SYNDROMES. BASIC PRINCIPLES OF CLASSIFICATION OF TUMORS. MORPHOLOGICAL FEATURES OF TUMORS FROM EPITELIUM AND TUMORS FROM TISSUES - DERIVATIVES
  2. Malignant tumors
    Malignant tumors of the nose and paranasal sinuses take third place in frequency among other malignant lesions of the upper respiratory tract (larynx and pharynx) and, according to published data, comprise 2 - 3% of malignant tumors of all localizations. Malignant tumors most often develop in the maxillary sinus. In second place in frequency are lattice maze tumors.
  3. Malignant tumors
    In the upper respiratory tract, cancer is mainly found in various forms and rarely (about 3% in relation to malignant tumors of the ENT organs)
  4. Malignant pharyngeal tumors
    The comparative incidence of pharyngeal cancers is high; carcinomas, lymphoepitheliomas, cytoblastomas, sarcomas, reticulocytomas, and mixed tumors are found among them. Men get sick more often than women, usually in middle age. K l and n and with to and to kartin and. The early symptoms of pharyngeal malignant tumors are poor and little characteristic. Light sensations may appear.
  5. Malignant tumors of the nose and paranasal sinuses
    Malignant diseases of this localization - cancer and isarcoma, as a rule, are primary. They are relatively rare, more often in middle-aged and elderly men. Most often, the primary malignant process affects the maxillary, then the ethmoid, frontal and sphenoid sinuses. Rarely, the nasal septum is the source of the malignant tumor. Malignancy
  6. Malignant tumors of the ear
    Malignant tumors of the ear can be both primary, i.e. developed directly in a particular department of the ear, and arising from the germination of tumors from neighboring organs and tissues. In the outer and middle ear, cancer is more often diagnosed in adults, and sarcoma in children. Of the other species, there may be melanoma. The course of tumors of the outer ear is relatively slow, they look like
  7. Malignant tumors of the vulva and vagina
    Vulvar cancer (RV) is found mainly in elderly women and accounts for 3-5% of all malignant diseases of the genitals. It develops against the background of involutive dystrophic processes. An important role in the occurrence of this pathology is given to metabolic and endocrine disorders and viral infection. Classification of PB by stages • Stage 0 - pre-invasive carcinoma. • I stage - tumor up to 2
  8. Malignant Intestinal Tumors
    - these are pathological proliferation of atypical cells with an autonomous (not always) progressive irreversible nature of growth, which replace and infiltrate normal tissue. Classification of the Stage of cancer Stage 1 - a tumor of small size, localized in the thickness of the mucosa or submucosal layer, without metastases; Stage 2: a) a large tumor, but not more than a semicircle
  9. Malignant skin tumors
    There are many theories of cancer (embryonic, virogenogenetic, hereditary, somatic mutations, etc.). Malignant tumors are characterized by infiltrating growth with destruction of the surrounding tissue and metastasis. There are two types of skin cancer: basal cell and squamous. Basal cell carcinoma, or basal cell carcinoma, occurs primarily in the elderly.
  10. Malignant Epithelial Tumors
    They are called cancer, or carcinoma. General characteristics. 1. Meet much more often than all other malignant tumors. 2. Often associated with previous diseases and conditions, which are called precancerous. 3. The development of many carcinomas (morphogenesis) is associated with previous changes in the epithelium - hyperplasia, metaplasia, dysplasia. 4. The only precancerous
  11. MALIGNANT BREAST TUMORS AND PREGNANCY
    Among malignant neoplasms in women, breast cancer is one of the first places. In recent years, the incidence of a combination of pregnancy and cancer has increased. There are two aspects of this problem: cancer among pregnant women and pregnancy with cancer. Breast cancer in pregnant women occurs in 0.03-0.3% of cases, pregnancy with breast cancer - in 0.78-3.8%, and in some reports
  12. Malignant tumors of the larynx
    Malignant tumors
  13. Primary malignant tumors
    Primary malignant
  14. Anemia in malignant tumors and their multiple metastases in the bone marrow
    The cause of the anemic condition in malignant tumors can be the following factors: 1) the toxic effect of the malignant tumor on erythropoiesis; 2) bleeding due to decay of the tumor and rupture of blood vessels; 3) secondary joining infection; 4) an erythropoiesis disorder due to bone marrow metastases; 5) achilia (with cancer of the stomach) and the associated violation of assimilation
  15. Bleeding from injuries and malignant genital tumors
    ETIOLOGY AND PATHOGENESIS Bleeding due to traumatic injuries of the genital tract can occur during defloration (especially in children and adolescents), during intercourse (maybe in women giving birth), during rape, in accidents, injuries, during the introduction of foreign bodies into the vagina with The goal of masturbation or abortion, during a criminal abortion. Bleeding with
  16. Surgery of the superior vena cava and its inflows in malignant tumors of the chest
    Bogdanovich A.S., Tarasov V.A. Department of Thoracic Surgery GOU DPO SPb MAPO Research objectives: To establish the effectiveness of surgical treatment in patients with common forms of malignant tumors of the chest organs complicated by the superior vena cava syndrome Material and methods: In the clinic of thoracic surgery SPbMAPO based on the surgical thoracic department of the City
  17. Brachytherapy of malignant tumors of the esophagus by naso-esophageal access on the apparatus “Multisors”
    Krivobokov V.V., Bocharov A.N., Bagel M.V., Orphan L.D. Regional Oncology Center No. 1 DZ of the Krasnodar Territory Research objective: To develop a simple, effective, well-tolerated method for brachytherapy of malignant tumors of the esophagus, taking into account the possibility of using thin conductors of the Multisors ionizing radiation source to reduce labor intensity
  18. Precancerous conditions and malignant tumors of the epidermis.
    Precancerous skin conditions - actinic keratosis, cutaneous horn, Bowen's disease, Keir erythroplasia. Actinic keratosis. Almost always, before malignancy in the epidermis, dysplastic changes appear, similar to changes in other organs lined with stratified squamous epithelium, for example, in the cervix. Because dysplastic changes are often the result of chronic
  19. Precancerous conditions and malignant tumors of the epidermis
    Actinic keratosis. Almost always, before malignancy, dysplastic changes appear in the epidermis; there is an analogy with the stages of development of squamous cervical cancer. Since dysplastic changes are often the result of chronic exposure to sunlight and are associated with the formation of excess keratin, foci of dysplasia are called actinic (photochemically
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