A Solitary Metastasis for a Malignant Schwannoma in the Gallbladder Detected by 18F-FDG PET/CT.
A 63-year-old woman with a history of malignant schwannoma in the left shoulder (pT1aNxMx) was treated with surgical resection in 2012. During follow-up, patient developed a metastasis in the right lung treated by further surgical intervention. For a suspicion on persistent disease in the lung, patient was sent to FDG PET/CT examination, which showed a focal uptake in the gallbladder. The patient underwent cholecystectomy, and a solitary metastasis from schwannoma was diagnosed by pathology. This case highlights that, in patients with a malignant schwannoma, a careful differential diagnosis should be made in case of a significant FDG uptake in the gallbladder.
From the *Nuclear Medicine and Molecular Imaging Unit, and †Oncology Unit 1, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy.
Laura
L
Evangelista
Marta
M
Burei
Umberto
U
Basso
D005260:Female; D019788:Fluorodeoxyglucose F18; D005706:Gallbladder Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D006801:Humans; D008875:Middle Aged; D009442:Neurilemmoma / Q000000981:diagnostic imaging* / Q000473:pathology; D000072078:Positron Emission Tomography Computed Tomography; D019275:Radiopharmaceuticals; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18