This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pigmentation, Subject name: Pathology
[{'content': "Dystrophic calcification is seen in which of the following conditions? \nSelect and explain. \nA. Myositis ossificans, B. Paget's disease, C. Metastasis, D. Sarcoidosis", 'role': 'user'}, {'content': "Answer: A \nExplanation: DYSTROPHIC CALCIFICATION METASTATIC CALCIFICATION Seen in Dead/Degenerative tissue Seen in Living tissue Affected Patients will have normal serum Ca2+ Affected Patients will have Hypercalcemia Causes of dystrophic calcification TB Chronic abscess Infarcts Atherosclerosis Hematoma Tumors like meningioma,mesothelioma Myositis ossificans Psammoma bodies Causes of metastatic calcification Hyperparathyroidism Parathyroid adenoma Hypervitaminosis D Rickets Seen in:- RHD Atherosclerosis Papillary carcinoma of thyroid, ovary, salivary gland Myositis ossificans, Meningioma Seen in:- Hyperparathyroidism Vit D Intoxication SarcoidosisMilk alkali syndrome Metastasis (Multiple myeloma) Myositis ossificans: It's a type of connective tissue metaplasia. It is seen after a traumatic injury. Due to the presence of degenerative muscle tissue, patient is going to have dystrophic calcification. Metastasis and sarcoidosis both undergo Metastatic calcification, there is increased serum Ca2+ seen in both the conditions.", 'role': 'assistant'}]