This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Frozen pelvis is seen in ? 
Select and explain. 
A. Osteoahritis, B. Potts disease, C. Actinomycosis, D. Reiters disease
B: Potts disease
Answer: B: Potts disease 
Explanation: Ans. is 'b' i.e., Potts disease A term for significant involvement of the pelvic floor by malignancy, usually carcinoma, or ttuberculosis; in which there is massive extension of pathology to the urinary bladder, female genital tract, and sigmoid colon. Adequate resection of a frozen pelvis is viually impossible; chemotherapy and radiation therapy are palliative at best.