This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Pathology
Giant cells seen 
Select and explain. 
A. Osteoclastoma, B. Chondroblastoma, C. Chordoma, D. Osteitis fibrosa cystisca
A: Osteoclastoma
Answer: A: Osteoclastoma 
Explanation: Giant cell tumors of bone also known as osteoclastomas are relatively common bone tumors, usually benign which are arising from metaphsis and typically extending into epiphysis of the long bones. Young adults of ages 20-40 are more prone to these conditions. In a x ray we can find soap bubble appearance . >aicles > REF OF IMG: