The attached image demonstrates the chondrosarcoma of the 3rd digit. Chondrosarcoma is the cancer of the bone that starts in chondrocytes. Among primary bone cancer, chondrosarcoma is second in place. Chondrosarcoma may occur between 20 to 75 years of age. The incidence in male and females are equal. Reference: https://www.cedars-sinai.org/health-library/diseases-and-conditions/c/chondrosarcoma-1.html Image via: https://www.researchgate.net/publication/276041391_Chondrosarcoma_of_the_Hand_A_Literature_Review/figures?lo=1&utm_source=google&utm_medium=organic