The comedian had been given the all clear previously, but has announced that her skin cancer returned in a mole on her arm.

Comedian Katherine Ryan is raising awareness about skin cancer after being diagnosed for the second time earlier this month.

Many moles or atypical (dysplastic) moles. Moles are benign (not cancer). Atypical moles can have irregular borders, be different colors, or be asymmetrical (they don’t look the same on all sides).