Malignancy is the process of transformation of benign cells into malignant ones. It can occur in any normal tissues or tissues of benign tumors. It is accompanied by a decrease in the level of differentiation, a change in morphological properties, impaired function and rapid cell proliferation, progressive growth of neoplasms and the development of distant…
Liposarcoma is a malignant tumor of adipose tissue. It can affect any part of the body, but is more often localized in the proximal parts of the lower extremities, in the retroperitoneal tissue or in the shoulder area. It is a single node of irregular shape with uneven density. When bones germinate and nerves are…
Gastric lymphoma is a rare, potentially malignant or malignant tumor originating from lymphoid tissue located in the stomach wall. Metastasis is rarely observed. Gastric lymphoma is manifested by premature saturation, pain in the epigastric region, nausea, vomiting, appetite disorders, weight loss and fever. It is diagnosed on the basis of medical history, clinical symptoms, examination…
Burkitt lymphoma is a tumor of a high degree of malignancy, belonging to the group of non–Hodgkin’s lymphomas. The primary focus can be localized not only in lymph nodes, but also in various organs and tissues: in the bones of the facial skeleton, stomach, intestines, mammary glands, etc. Aggressive local growth and rapid metastasis are…
Lymphogranulomatosis is a malignant hyperplasia of lymphoid tissue, a characteristic feature of which is the formation of granulomas with Berezovsky-Sternberg cells. For lymphogranulomatosis, an increase in various groups of lymph nodes (more often mandibular, supraclavicular, mediastinal), an increase in the spleen, subfebrility, general weakness, weight loss is specific. In order to verify the diagnosis, lymph…
Lymphangiosarcoma is a rare malignant neoplasm of endothelial origin that develops against the background of pronounced, long–existing lymphedema of the limb. The most studied and frequently occurring type of lymphangiosarcoma is Stewart-Treves syndrome. Its early signs are purple spots on the skin, dense subcutaneous nodules and the formation of ulcers, late – visceral metastases. This…
Lentigo maligna melanoma is a type of melanoma characterized by a long course. It is a spot of irregular shape. It occurs more often in open areas of the body, less often affects the skin of the back and lower extremities. Lentigo melanoma has a long phase of radial growth, sometimes lasting one to two…
Sacrococcygeal teratoma is a tumor of mixed structure originating from germ cells and located in the sacrococcygeal zone. It can be benign or malignant. It is detected at birth. It is a painless node with a heterogeneous structure. It can cause displacement of the rectum, impaired development of the urinary system and pelvic bones, difficulty…
Colorectal cancer is a malignant tumor of the large intestine. At the initial stage, it is asymptomatic. Subsequently, it is manifested by weakness, malaise, loss of appetite, abdominal pain, dyspepsia, flatulence and intestinal disorders. Intestinal obstruction phenomena are possible. Ulceration of the neoplasm is accompanied by bleeding, but the admixture of blood in the feces…
Carcinoid syndrome is a complex of symptoms resulting from hormonal activity of tumors from the cells of the APUD system. It includes hot flashes, persistent diarrhea, fibrous lesion of the right half of the heart, abdominal pain and bronchospasm. During surgical interventions, the development of a life-threatening carcinoid crisis is possible. Pathology is diagnosed on…