The classic skeletal manifestation of advanced primary hyperparathyroidism is called as Osteitis Fibrosa Cystica (OFC). The paradigm has now shifted from identifying primary hyperparathyroidism to asymptomatic primary hyperparathyroidism owing to the wide spread use of measuring serum calcium. We describe a classical feature of advanced primary hyperparathyroidism due to a parathyroid adenoma and its successful treatment.