“…Occasionally, this condition is associated with renal or heart malformations or endocrine disorders [1]. Several pathologies can coexist with OPK, such as rheumatoid arthritis, systemic lupus erythematosus, reactive arthritis, ankylosing spondylitis, psoriatic arthritis, familial Mediterranean fever, dacryocystitis, scleroderma, fibromyalgia, and Quervain's syndrome [1,2,4,[12][13][14][15]. Primarily asymptomatic OPK associated with connective tissue nevi of the skin is categorized as Buschke-Ollendorff syndrome (BOS).…”