What's the difference between tumor and cancer. Is it always that tumor leads to cancer?
A tumor may be benign or malignant. Malignant Tumors are cancers. The main difference between benign and malignant tumors is that malignant tumors show invasion and metastasis so they are more dangerous than benign tumors. They invade into the surrounding structures and a part of the tumor mass may separate from the original mass , travel to other place and start to make a new mass there which is call secondary mass. This is called metastasis
Tumor are of two types - Malignant and Benign, Malignant tumors are cancerous that is they spread to neighboring tissues
And the second question was if tumor always leads to cancer. The answer is no, the tumor becomes cancerous only if it accumulates enough mutations that enable it to break off some chunks into the blood stream or lymphatic vessels and survive in this conditions, then it travels to various regions in the body where it grows secondary tumors - metastatis.
Tumour is formed when cells divide abnormally. It is benign or malignant. Benign tumour can be cured if taken care of. It is basically at a portion or part of our body so you can cure that part or if severe you can cut that part away as mostly happens in breast cancer. Patient mostly survives. But malignant tumour never stays at one body part. It grows slowly into cancer as it gets into our circulatory system and invade several parts of the body making cells there to divide abnormally too. It leads to formation of tumour their too. This is where patient dies in most of the cases. In very rare cases patient survives if has very strong immunity. Hope you’ve got your answer