Molluscum Contagiosum By James G H Dinulos, MD, Geisel School of Medicine at Dartmouth Reviewed / Revised Jun 2023 View Patient Education Symptoms and Signs Diagnosis Treatment Key Points Topic Resources Molluscum Contagiosum on... Molluscum Contagiosum (Torso) Molluscum Contagiosum in... Molluscum contagiosum is characterized by clusters of pink, dome-shaped, smooth, waxy, or pearly and umbilicated papules 2 to 5 mm in diameter caused by molluscum contagiosum virus, a poxvirus.