Types and structure of tumors in children
Oncology / / August 12, 2017
in children are extremely rare tumors such as lung cancer, gastric, esophageal, breast, uterus, t. E. Those tumors that are most common in adults.Epithelial tumors, t. E. Those tumors that are called "crabs" in the structure of cancer among children account for only less than 6%.Almost half of all malignant tumors in childhood hematological malignancies account for - acute leukemia and malignant lymphoma.Quite often brain tumors (18%).As common in children kidney tumors and bone.
distribution of a variety of tumors in childhood back to the structure of tumor diseases in adults.Although in children (even infants) and fruit described gastric, lung, esophagus, rectum and other typical tumors of adults, they are still observed as oddities.Suffice it to say that to date in world literature published less than 100 cases of gastric cancer in children.It should be noted that all cases of gastric cancer were published precisely because of the rarity of this tumor in childhood.For the diagnosis of tumors in chil
structure of tumors in children also has a number of features.In the study of the histological structure of tumors in children is not always possible to distinguish between malignant and benign growth process.Obviously malignant tumors such as renal tumor (nephroblastoma), and neuroblastoma (a tumor of the sympathetic nervous system), increase as long benign while in germinating capsule and its surrounding organs and tissue.Sometimes these tumors reach huge sizes (this is particularly true for nephroblastoma) and still remain in the capsule, just pushing the adjacent organs and tissues, but not in germinating them.
At the same time, these benign tumors as angioma (hemangioma, lymphangioma), often have infiltrative growth characteristic of cancer.Located on the face, they can destroy the eyes, lips, nose, and respiratory tract.Hitting some authorities, these tumors, despite its benign, can lead to the death of the child (eg, hemangioma of the liver).Histology of some tumors in children is so unique, especially when such a combination of the frequent malformations with tumors, which in some cases is not only difficult to make a differential diagnosis, but also to distinguish the cells of epithelial sarcomatous.Particularly difficult to recognize the nature of the tumor, obtained by needle (a needle) biopsy smears and tumors.This fact must always remember - the appointment of the drug treatment and radiation therapy is possible only when precisely established morphological diagnosis.So often we have to resort to repeated biopsies, and sometimes diagnostic operations.
12 Aug, 2017
12 Aug, 2017