<prompt> Pathognomic feature of hyperparathyroidism -OsteopeniaLoss of lamina duraBrowns tumorSub periosteal resorption of phalanges  <response>: Radiological features of hyperparathyroidism : The characteristic feature is subperiosteal resorption paicularly radial aspect of middle phalanx of middle and index finger. Loss of lamina dura Pepper pot skull Rugger jersy spine Brown tumor Soft tissue calcification 