I, too, had a simple cyst removed long years ago (1975, after finding a pea-size lump), and in 2008 was recalled after a mammogram because a shadow showed up, causing a bit of panic. But a needle aspiration procedure was done and it was found to be old scar tissue from my original cyst-removal, which was removed under a general anaesthetic in hospital as an overnight patient. Hopefully, your callback turns out to be nothing more serious than old scar-tissue from your old cyst removal, Jane43. To all those who've been recalled after a mammogram, I send you all best wishes for good outcomes.