Hence the lesions are skin coloured papules, possibly red if inflamed, and are not itchy. Consider sarcoidosis and granuloma annulare if the rash is extensive and tumours such as neurofibromatosis or leiomyomas if the lesions are multiple and grouped. However one of the commonest causes of smoothe dome shaped skin coloured papules is molluscum contagiosum, a pox virus usually seen in young children. Other infiltrative conditions presenting as skin coloured non scaly include Scleroderma, Scleromyxedema, Scleredema, papular mucinosis. The mnemonic is IT -infiltrates and tumours.
These all require a punch biopsy to definitively diagnose.