RESUMO
Summary@#Calcinosis cutis is characterized by the accumulation of insoluble calcium salts in the cutaneous and subcutaneous tissue. This condition is classified into four subtypes of calcification: dystrophic, metastatic, idiopathic and iatrogenic. Here, we describe a case of calcinosis cutis in a patient with systemic lupus erythematosus (SLE) who was recently diagnosed with ovarian cancer. Following total hysterectomy with bilateral salphingo-oophorectomy, she developed a painful erythematous plaque over the anterior aspect of the left forearm which turned into single thin yellowish plaque over the following days. Multiple attempts of intravenous cannulation for intravenous fluids occurred at the site. Skin biopsy revealed calcification in the dermis and subcutaneous fat associated with altered dermal collagen. Von Kossa stain demonstrated the presence of calcium deposition. She responded to topical calcineurin inhibitor which resulted in a complete resolution of the skin lesion.