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Castello A, Zuccotti G, Bonatto E, Florimonte L, Castellani M. An Incidental Uptake of 18F-Choline in Paraganglioma. Clin Nucl Med 2022; 47:e129-e130. [PMID: 34507329 DOI: 10.1097/rlu.0000000000003885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT We present a case of carotid glomus paraganglioma incidentally detected using 18F-choline PET/CT in a 63-year-old man with prostate cancer. 18F-choline PET/CT scan demonstrated a small area of 18F-choline uptake (SUVmax, 2.3) in the right parapharyngeal space of the neck, later diagnosed as paraganglioma with low proliferation index. 18F-choline PET/CT may represent a valid alternative for studying paraganglioma when either 18F-DOPA or 68Ga-SSA are not available.
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Affiliation(s)
- Angelo Castello
- From the Department of Nuclear Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
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Welle CL, Cullen EL, Peller PJ, Lowe VJ, Murphy RC, Johnson GB, Binkovitz LA. ¹¹C-Choline PET/CT in Recurrent Prostate Cancer and Nonprostatic Neoplastic Processes. Radiographics 2016; 36:279-92. [PMID: 26761541 DOI: 10.1148/rg.2016150135] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Choline positron emission tomography (PET)/computed tomography (CT), with both carbon 11 ((11)C) choline and fluorine 18 ((18)F) choline, is an increasingly used tool in the evaluation of patients with biochemically recurrent prostate cancer. It has allowed detection and localization of locally recurrent and metastatic lesions that were difficult or impossible to identify using more conventional modalities. Many of the patients followed for their prostate cancer are elderly and have a higher rate of nonprostate cancer lesions or malignancies. As our experience with choline PET/CT has grown, it has become apparent that many of these nonprostate cancer processes, both benign and malignant, can be detected. Invasive thymoma, renal cell carcinoma, papillary thyroid carcinoma, and parathyroid adenoma are a few of the processes that have been incidentally detected with (11)C-choline PET/CT at our institution and have significantly altered subsequent clinical management of the patient. Although most of the secondary lesions are detected due to their increased (11)C-choline avidity, several have been detected due to their decreased or lack of avidity in the background of a highly avid organ. For instance, large liver masses that are relatively non-choline-avid create large activity defects in the otherwise highly active liver. Familiarity with normal (11)C-choline physiologic activity, the most common prostate metastatic patterns, and imaging characteristics of secondary lesions is essential for the detection and correct diagnosis of such lesions so that proper follow-up and management can be recommended.
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Affiliation(s)
- Christopher L Welle
- From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905-0002 (C.L.W., E.L.C., V.J.L., R.C.M., G.B.J., L.A.B.); and Eka Medical Center-Jakarta, BSD City, Tangerang, Indonesia (P.J.P.)
| | - Ethany L Cullen
- From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905-0002 (C.L.W., E.L.C., V.J.L., R.C.M., G.B.J., L.A.B.); and Eka Medical Center-Jakarta, BSD City, Tangerang, Indonesia (P.J.P.)
| | - Patrick J Peller
- From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905-0002 (C.L.W., E.L.C., V.J.L., R.C.M., G.B.J., L.A.B.); and Eka Medical Center-Jakarta, BSD City, Tangerang, Indonesia (P.J.P.)
| | - Val J Lowe
- From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905-0002 (C.L.W., E.L.C., V.J.L., R.C.M., G.B.J., L.A.B.); and Eka Medical Center-Jakarta, BSD City, Tangerang, Indonesia (P.J.P.)
| | - Robert C Murphy
- From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905-0002 (C.L.W., E.L.C., V.J.L., R.C.M., G.B.J., L.A.B.); and Eka Medical Center-Jakarta, BSD City, Tangerang, Indonesia (P.J.P.)
| | - Geoffrey B Johnson
- From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905-0002 (C.L.W., E.L.C., V.J.L., R.C.M., G.B.J., L.A.B.); and Eka Medical Center-Jakarta, BSD City, Tangerang, Indonesia (P.J.P.)
| | - Larry A Binkovitz
- From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905-0002 (C.L.W., E.L.C., V.J.L., R.C.M., G.B.J., L.A.B.); and Eka Medical Center-Jakarta, BSD City, Tangerang, Indonesia (P.J.P.)
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Abstract
We report a case of squamous cell carcinoma of the tonsil incidentally detected by F-choline PET/CT. A 55-year-old male patient with a history of prostate cancer underwent F-choline PET/CT for restaging. PET/CT revealed a focal area of increased F-choline uptake corresponding to the left tonsil. No other areas of abnormal F-choline uptake were detected in the rest of the body. Based on these PET/CT findings, the patient underwent clinical examination and biopsy of the left tonsil. Histology demonstrated the presence of a squamous cell carcinoma of the tonsil.
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Abstract
We report a case of metastatic colorectal carcinoma detected by F-choline PET/CT. A 72-year-old man with history of prostate cancer (previously treated with prostatectomy) underwent F-choline PET/CT for restaging. PET/CT revealed a focal area of increased F-choline uptake corresponding to a rectal nodule. Furthermore, 2 areas of increased radiopharmaceutical uptake were evident in the right clavicle and in the body of the 10th dorsal vertebra, corresponding to the osteolytic lesions. Based on these PET/CT findings, the patient underwent biopsy of the rectal nodule and left clavicular lesion. Histologic examination demonstrated the presence of a colorectal carcinoma metastatic to the bone.
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