Idiopathic Calcinosis cutis: Cytodiagnosis of three cases with literature review

Idiopathic Calcinosis cutis is an uncommon soft tissue lesion characterized by organized and localized deposition ofcalcium salts in the skin and subcutaneous tissue. There are multiple clinical settings attributed to calcium depositionand these can be subjected to fine-needle aspiration (FNA). Since cutaneous calcific deposits may clinically mimica tumor, it is advisable to diagnose them by FNA cytology (FNAC) which is a rapid, reliable and simple procedure.We reported three cases of idiopathic calcinosis cutis by FNA. The diagnoses were further confirmed by special stain,Von kossa stain. Cytological finding of amorphous granular material consistent with calcium salts and the appropriateclinical background led to the cytodiagnosis of idiopathic calcinosis cutis. Points of concern for a correct interpretationof the cytological findings along with review of literature were also discussed.