SUBEPIDERMAL CALCIFIED NODULE (CALCULUS) OF THE EYELID

A 9-year-old boy presented with a painless hard tumor in the right low er lid. It had grown slowly since 12 months. Three months before prese ntation cryotherapy was administered by a dermatologist because of a p resumed wart. Both eyes were normal. Clinical differential diagnosis i ncluded a keratoakanthoma and a wart. Excisional biopsy was performed. Histology revealed granular deposits which stained positive with hema toxylin-eosin and von Kossa stain. Though a secondary (dystrophic) cal cinosis of the lid following cryotherapy could not be ruled out a diag nosis of an idiopathic subepidermal calcified nodule (calculus) of the lid was established.