A Level Biology Revision (Year 13) “Benign and Malignant Tumours”
Author: Freesciencelessons via YouTube
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In this video, we look at benign and malignant tumours. First we look at benign tumours. We describe what is meant by a benign tumour and the features of benign tumours. We then look at what is meant by a malignant tumour and how malignant tumours are defined as cancers. We look at how malignant tumours can spread via metastasis and how malignant tumours can be treated by chemotherapy and radiotherapy.
Image credits:
Mitosis
https://commons.wikimedia.org/wiki/File:Mitosis_Mesenchymal_Stem_Cells.gif
Evilonan, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Malignant melanoma liver
https://commons.wikimedia.org/wiki/File:Malignant_Melanoma,_Liver_FNA,_Direct_Smear,_Pap_Stain_(8191269180).jpg
Ed Uthman from Houston, TX, USA, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons
Malignant melanoma scalp
https://commons.wikimedia.org/wiki/File:Malignant_Melanoma_Mid_Frontal_Scalp.jpg
Dermanonymous, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Fibroma
https://commons.wikimedia.org/wiki/File:Fibroma.jpg
Klaus D. Peter, Wiehl, Germany, CC BY 3.0 DE https://creativecommons.org/licenses/by/3.0/de/deed.en, via Wikimedia Commons
Metastasis
Adapted by S. Donnelly from
https://commons.wikimedia.org/wiki/File:Figure_1_from_%27Targeting_Breast_Cancer_Metastasis_(20911418040).jpg
Libertas Academica from Auckland, New Zealand, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons
Chemotherapy
https://commons.wikimedia.org/wiki/File:Chemotherapy_bottles_NCI.jpg
Unknown photographer/artist, National Cancer Institute, Public domain, via Wikimedia Commons
Radiotherapy
https://commons.wikimedia.org/wiki/File:Radiation_therapy_for_cancer.jpg
Jakembradford, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons