I could add by ulrasound too, GP was cautious though, Consultant definately dx'd with CT scan.
MSK was discovered when I had an IVP at my urologist in January 09.
IVP led to diagnosis of Nephrocalcinosis. Multiple IVP's and CT scans with no mention of MSK for 3 more years. "Tilted" CT scan by a new Uro led to the diagnosis of MSK as the cause of the Nephrocalcinosis.