Indian Journal of Nuclear Medicine
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Year : 2020  |  Volume : 35  |  Issue : 2  |  Page : 178-180

Isolated mandibular metastasis detected on staging18FDG PET/CT scan in a case of carcinoma urinary bladder

1 Department of Nuclear Medicine, Sir Ganga Ram Hospital, New Delhi, India
2 Department of Nuclear Medicine and PET/CT, Platinum Imaging Centre, New Delhi, India

Correspondence Address:
Dr. Nitin Gupta
Department of Nuclear Medicine, Sir Ganga Ram Hospital, New Delhi - 110 060
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijnm.IJNM_18_20

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Isolated mandibular metastasis is very rare from carcinoma urinary bladder with no locoregional lymph node involvement. Here, we present a case where staging fluorodeoxyglucose - positron emission tomography - computed tomography (FDG PET-CT) scan showed an FDG avid primary lesion in carcinoma urinary bladder with FDG avid erosion in the right mandibular condyle. However, since no pelvic lymph nodes were involved, the mandibular lesion was kept on follow-up and cystoprostatectomy was performed. Follow-up FDG PET-CT scan after 6 months revealed an osteolytic destructive lesion in the mandible with associated soft tissue component and the biopsy confirmed this as metastatic lesion.

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