question: Hello doctor, My 85-year-old father had mild pain in his thighs and shoulder girdle for two months which intensified in the past two weeks to a point that he could not get up from his bed. He was started on oral steroids 30 mg once daily for the past three days and has shown a 40% response but cannot stand. Blood tests were done yesterday showing normal serum electrolytes, bilirubin, TSH, and CBC with some iron deficiency. Raised values are CPK - 272, BUN - 50, SGOT - 50, SGPT - 100, and leucocytes - 29000. His Hb is 9 and eosinophilia 42 since before. Kindly suggest the diagnosis.