Secondary hyperparathyroidism are seen in all except -
Primary -Singleadenoma(90%) Multipleadenomas(4%) Nodularhyperplasia(5%) Carcinoma(1%) Secondary -Chronicrenalfailure ,Malabsorption,Osteomalacia'and rickets Teiary DAVIDSONS PRINCIPLES AND PRACTICE OF MEDICINE 22ND EDITION PAGE NO-769
Rickets
Osteomalacia
Osteoporosis
Renal failure
Endocrinology