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2017 ; 13
(4
): 2105-2108
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
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English Wikipedia
Anti-osteoclastic agent, denosumab, for a giant cell tumor of the bone with
concurrent Paget s disease: A case report
#MMPMID28454368
Tanaka T
; Slavin J
; McLachlan SA
; Choong P
Oncol Lett
2017[Apr]; 13
(4
): 2105-2108
PMID28454368
show ga
Paget's disease of the bone may predispose the development of malignant bone
tumors such as osteosarcoma. Giant cell tumor (GCT) as a consequence of Paget's
disease is rare. Bone GCT is characterized by rapid growth, the destruction of
bone, extension to the surrounding soft tissue and abnormal bone turnover caused
by an abnormality of the receptor activator of nuclear factor-?B (RANK)-RANK
ligand (RANKL) pathway. Denosumab is a RANK-RANKL inhibitor, which is used to
treat osteoporosis and bone GCT. In the current study, a 60-year-old male
presented with severe pain located between the right thigh and the knee. The
patient could not bear weight on the affected leg. The patient had suffered from
Paget's disease for 15 years. The complications from Paget's disease included
degenerative hip disease, for which the patient underwent a right total hip
replacement. A right periacetabular lesion was identified and confirmed as
Paget's disease-induced GCT by needle biopsy. A positron emission tomography
(PET) scan revealed significant tumor metabolic activity. Subsequent to obtaining
informed consent, the patient started treatment with denosumab. A total of 2.5
months after starting denosumab, a PET scan showed no residual pathological
uptake at the site of the previously identified large PET avid tumor. After 1
year, the patient exhibited a satisfactory clinical improvement. In conclusion,
treatment with denosumab markedly reduced the size of the hemi-pelvic GCT and led
to a complete metabolic response.