title: Overview of geriatric osteopenic syndromes. Part I: Definition and pathophysiology.
abstract: The clinical features of osteoporosis are identified, and their role in distinguishing this disease entity from osteomalacia, osteopenia, endocrinopathies, and marrow-packing disorders is discussed. An update is also offered on the ways in which calcium intake and estrogen levels are implicated in the pathophysiology of bone mass loss.
authors.affiliation: Metabolic Bone Disease Service, Hospital for Special Surgery, New York, New York.
authors.forename: J M
authors.initials: JM
authors.lastname: Lane
authors.forename: J H
authors.initials: JH
authors.lastname: Healey
authors.forename: M
authors.initials: M
authors.lastname: Bansal
authors.forename: B
authors.initials: B
authors.lastname: Levine
mesh_terms: D000368:Aged; D001851:Bone Diseases, Metabolic / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010018:Osteomalacia / Q000209:etiology / Q000473:pathology; D010024:Osteoporosis / Q000209:etiology / Q000473:pathology