Carcinogen Definition The agents which can induce tumors are called carcinogens. There are four types of carcinogens: 4 Types Carcinogen Molecular pathogens: Genes are involved. Chemical carcinogens: 1. Initiator Carcinogens They can initiate the process of neoplastic transformation. DirectActing Carcinogens: They do not require metabolic … [Read more...] about Carcinogenesis – Types, Effects and Prevention
Metastasis Breast Cancer Notes
Metastasis Breast Cancer General Biology of Tumors The biology of tumors is described in certain steps: 1. Aggressive Clonal Proliferation and Angiogenesis: The spread of cancer cells is the development of rapidly proliferating clones of cancer cells. Tumor angiogenesis plays a significant role in metastasis since new vessels formed as part of growing tumors are more … [Read more...] about Metastasis Breast Cancer Notes
Neoplasm Question and Answers
Neoplasm Question 1. How to define neoplasia and how do you classify them? Differentiate benign and malignant tumors of the head and neck. Or Define and classify neoplasia. Write down the differences between benign and malignant tumors. Answer: The term neoplasia means new growth, the new growth produced is called a neoplasm or tumor. Neoplasm is a mass of tissue … [Read more...] about Neoplasm Question and Answers
Intraoral Radiographic Technique To Diagnose Various Periapical Lesion Notes
Describe Various Intraoral Radiographic Technique To Diagnose Various Periapical Lesion. Intraoral radiographic techniques to diagnose periapicallesion. Periapical Radiography Periapical radiography is an intraoral radiographic technique showing all of the tooth and the surrounding bone. There are two techniques used to take periapical radiographs: The … [Read more...] about Intraoral Radiographic Technique To Diagnose Various Periapical Lesion Notes
Pituitary Tumours – Symptoms and Treatments
Pituitary Tumours Many types of tumours can occur in the pituitary gland. The most common tumours in the pituitary gland are pituitary adenomas (which are benign). However, metastatic cancer can dwell in the pituitary gland when the cancer cells metastasize to the pituitary gland. Benign pituitary adenomas can be divided into nonfunctioning tumours and functioning tumours … [Read more...] about Pituitary Tumours – Symptoms and Treatments