A mum who dismissed a mark on her chest as "just a spot" was devastated to be diagnosed with an aggressive cancer . Rebecca Turner, 46, had part of her lung removed after medics examined the patch of pale skin and red lump on the upper right side of her chest. She had thought the 1cm large lump was "just a spot", but became increasingly concerned when it started going black, changing colour, and became itchy. And when medics told Rebecca she had nodular melanoma , an aggressive form of skin