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Malignant tumors



SARCOMA is a malignant tumor from mesenchymal tissue. Unlike cancer of sarcoma, the first metastasis is hematogenous. Histogenesis sarcomas are classified into a number of varieties.

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

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

Myosarcoma arises from muscle tissue, and they are divided into leiomyosarcoma and rhabdomyosarcoma.

Of
angiosarcomas occur among the vascular tissue, among which there are: a) malignant hemangiopericytoma; b) malignant hemangioendothelioma.

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

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

According to the TNM classification of sarcoma are divided into: Tx - not enough data to assess the tumor; That - the primary tumor is not defined; T1 - tumor 5 cm; No - insufficient data on the assessment of regional metastases; N0 - no metastases in the 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. PROGRESSION OF TUMORS. MORPHOGENESIS OF TUMORS. INVASION AND METASTASIS OF MALIGNANT TUMORS. BIOMOLECULAR MARKERS OF TUMORS. ANTI-TUMOR IMMUNITY. PARANOPLASTIC SYNDROM. BASIC PRINCIPLES OF CLASSIFICATION OF TUMORS. MORPHOLOGICAL FEATURES OF TUMORS FROM EPITHELIUM AND TUMORS FROM TISSUES - DERIVATIVE MESENCHYMS
    TUMOR GROWTH. PROGRESSION OF TUMORS. MORPHOGENESIS OF TUMORS. INVASION AND METASTASIS OF MALIGNANT TUMORS. BIOMOLECULAR MARKERS OF TUMORS. ANTI-TUMOR IMMUNITY. PARANOPLASTIC SYNDROM. BASIC PRINCIPLES OF CLASSIFICATION OF TUMORS. MORPHOLOGICAL CHARACTERISTICS OF TUMORS FROM EPITHELIUM AND TUMORS FROM TISSUES - DERIVATIVES
  2. Malignant tumors
    Malignant tumors of the nose and paranasal sinuses occupy the third place among other malignant lesions of the upper respiratory tract (larynx and pharynx) and constitute, according to literary data, 2-3% of malignant tumors of all localizations. Malignant tumors most often develop in the maxillary sinus. In the second place in frequency are tumors of the ethmoid labyrinth.
  3. Malignant tumors
    In the upper respiratory tract mainly cancer is found in various forms and is rare (about 3% in relation to malignant tumors of the upper respiratory tract)
  4. Malignant tumors of the pharynx
    The comparative incidence of malignant tumors of the pharynx 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 c e to and I to and r t and N and. The early symptoms of malignant tumors of the pharynx are poor and not very characteristic. Light sensations may appear.
  5. Malignant tumors of the nose and paranasal sinuses
    Malignant diseases of this localization - cancer isarcoma, as a rule, are primary. They are relatively rare, 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 a malignant tumor. Malignancy
  6. Malignant ear tumors
    Malignant tumors of the ear can be as primary, i.e. developed directly in this or that part of the ear, and arisen during the germination of tumors from neighboring organs and tissues. In the outer and middle ear, adults are more often diagnosed with cancer, in children - sarcoma. Of other types, there may be melanoma. The course of the tumors of the external ear is relatively slow, apparently they resemble
  7. Malignant tumors of the vulva and vagina
    Cancer of the vulva (PB) occurs mainly in older women and is 3-5% of all malignant diseases of the genitals. Develops against the background of involutive dystrophic processes. An important role in the occurrence of this pathology is attached to metabolic and endocrine disorders and viral infection. RV classification by stages • Stage 0 - preinvasive carcinoma. • Stage I - tumor up to 2
  8. Malignant tumors of the intestine
    - pathological growths of atypical cells that have autonomous (not always) progressive irreversible growth pattern that replace and infiltrate normal tissue. Classification Stages 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 tumor of large size, but not more than a semicircle
  9. Malignant skin tumors
    There are many theories of cancer (embryonic, virusogenetic, 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 predominantly in the elderly.
  10. Malignant epithelial tumors
    They are called cancer, or carcinoma. General characteristics. 1. It is much more common than all other malignant tumors. 2. Often associated with previous diseases and conditions that are called precancerous. 3. The development of many carcinomas (morphogenesis) is associated with previous changes in the epithelium - hyperplasia, metaplasia, dysplasia. 4. The only pre-cancerous
  11. Malignant mammary gland tumors and pregnancy
    Among the malignant tumors in women, breast cancer is one of the first places. In recent years, the frequency of combinations of pregnancy and cancer has increased. Two aspects of this problem are distinguished: cancer among pregnant women and pregnancy in cancer. Breast cancer in pregnant women occurs in 0.03–0.3% of cases, pregnancy in breast cancer - in 0.78–3.8%, and in separate reports
  12. Malignant tumors of the larynx
    Malignant tumors
  13. Primary malignant tumors
    Primary malignant
  14. Low incidence in malignant tumors and their multiple metastasis to the bone marrow
    The following factors may be the cause of the anemic state in malignant tumors: 1) the toxic effect of the malignant tumor on erythropoiesis; 2) bleeding due to disintegration of the tumor and rupture of blood vessels; 3) re-joining infection; 4) Erythropoiesis disorder due to bone marrow metastases; 5) Akhiliya (in case of stomach cancer) and an associated disorder of absorption
  15. Bleeding with injuries and malignant tumors of the genital organs
    ETIOLOGY AND PATHOGENESIS Bleeding with traumatic injuries of the genital tract can occur during defloration (especially in children and adolescents), during sexual intercourse (maybe in women who have given birth), during rape, in accidents, injuries, during the introduction of foreign bodies into the vagina The purpose of masturbation or termination of pregnancy, during a criminal abortion. Bleeding with
  16. SURGERY OF TOP FLOOR VENA AND ITS INFLOWS AT MALIGNANT BREAST CELL TUMORS
    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 superior vena cava syndrome Material and Methods: In the clinic of thoracic surgery SPbMAPO on the basis of the Urban Surgical Thoracic Department
  17. BRAKHETERAPY OF Malignant Malignant Tumors by NESESOPHAGEAL ACCESS ON THE “MULTISORS” APPARATUS
    Krivobokov V.V., Bocharov A.N., Bublik M.V., Syrota L.D. Regional Oncologic Dispensary No. 1 DZ of Krasnodar Region Research Objective: To develop a simple, effective, well-tolerated by the patient method of brachytherapy of esophageal malignant tumors, taking into account the possibility of using thin conductors of the source of ionizing radiation of the Multisource apparatus to reduce labor intensity
  18. Pre-cancerous conditions and malignant tumors of the epidermis.
    Pre-cancerous conditions of the skin - actinic keratosis, cutaneous horn, Bowen's disease, Keir erythroplasia. Actinic keratosis. Almost always, before malignancy, dysplastic changes appear in the epidermis, similar to changes in other organs lined by stratified squamous epithelium, for example, in the cervix. Because dysplastic changes are often the result of chronic
  19. Pre-cancerous 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 cell carcinoma of the cervix uterus. Since dysplastic changes are often the result of chronic exposure to sunlight and are associated with the formation of an excess amount of keratin, the foci of dysplasia are called actinic (photochemical
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