Calcinosis Cutis in a Seven-Year-Old Male With Hepatic Focal Nodular Hyperplasia and Congenital Partial Venous Drainage.

Calcinosis cutis, defined as the deposition of insoluble calcium salts in the skin and subcutaneous tissue, is an uncommon condition in pediatric populations. It may arise from various underlying causes, including metabolic, inflammatory, or structural anomalies, and is classified into several subtypes, each requiring a distinct approach to diagnosis and management. We present the case of a seven-year-old Indian male with a history of massive hepatic focal nodular hyperplasia and a congenital partial venous drainage anomaly, who developed widespread, firm, non-tender, skin-colored nodules over a two-year period. The lesions were distributed across multiple areas, including behind the ears, neck, trunk, inguinal region, and extremities. This case highlights the importance of recognizing calcinosis cutis as a potential dermatologic manifestation in children with underlying systemic abnormalities and the need for individualized evaluation and multidisciplinary management.