Pelvis swelling and pain. Scan report.

Hello Doctor, I'm 33 years old male. From last year, I had a swelling and a mild pain on my right pelvis region. I had consulted couple of orthopaedic doctors but there was no relief. Then this year I consulted a govt senior Ortho surgeon. He told me to take x-ray and ultra scan. But nothing unusual was shown in that. Then he told me to take CBC blood test. Regarding about blood test everything was ok only lymphocytes showed 46.Then again the following 2 months I took CBC blood test. But the result was same, lymphocytes showed 46. Doctor asked me to take a MRI of full abdomen and screening of pelvic region. But nothing unusual was shown in that also. And he told me to take Tripsoflam tablet three times a day before food to reduce swelling. After taking these tablets also there is no relief. Swelling is still there and mild pain.I'm not feeling the pain continually but a small swelling is there always.So pls doctors can anyone tell me what this might be. I'm attaching the scan report.