A 43-year-old woman with a history of acute myelogenous leukemia was presented with an eruption of asymptomatic pink papules on her trunk, in remission 6 weeks after allogeneic bone marrow transplantation. The papules had appeared over the previous two weeks. On her lower back and abdomen were scores of firm, pink papules, 4-10 mm in size (figure attached). What could be the possible diagnosis?

*This patient case is from Docplexus Editorial Team for educative purpose only. Source: WUSM-Dermatology. The correct answer is posted in the comments section ( Click here )