The Journal of Bone and Joint Surgery, Vol 58, Issue 7 994-1000, Copyright © 1976 by Journal of Bone and Joint Surgery, Inc
Osteolytic form of Paget's disease. Differential diagnosis and pathogenesis
JT Anderson and LP Dehner
Of fourteen patients with Paget's disease for whom adequate roentgenograms
and pathological material were available, six had lesions showing
significant or predominant osteolysis. Based on a study of these six
patients and a review of the literature, the following mechanisms were
identified as causes of the so-called osteolytic type of the disease: (1)
an "early" destructive Paget's lesion; (2) "advanced" Paget's disease with
secondary degenerative changes; (3) "seeding" of an independent osteolytic
lesion, particularly tumor in pre-existing Paget's disease; (4) sarcomatous
transformation; and (5) immobilization after fracture. An osteolytic lesion
in a patient without other bone disease may be due to Paget's disease,
while an associated lytic lesion may be the result of a variety of
conditions. Accurate pathological diagnosis is essential.