European Radiology

, Volume 9, Issue 5, pp 975–978

FDG PET-negative liver metastases of a malignant melanoma and FDG PET-positive Hurthle cell tumor of the thyroid

  • W. Wiesner
  • H. Engel
  • G. K. von Schulthess
  • G. P. Krestin
  • I. Bicik
Nuclear medicine

DOI: 10.1007/s003300050779

Cite this article as:
Wiesner, W., Engel, H., von Schulthess, G. et al. Eur Radiol (1999) 9: 975. doi:10.1007/s003300050779

Abstract.

A Hurthle cell tumor (oncocytoma) of the thyroid presented as a hypermetabolic focus in a fluorodeoxyglucose positron emission tomography (FDG PET) study which was performed as staging procedure in a patient with malignant melanoma. This finding led to the initial diagnosis of a metastasis. In contrast, multiple liver metastases, seen on MRI and sonography, did not show any increased FDG uptake. Cytology results of one liver mass confirmed a melanoma metastasis, and of the neck mass, a Hurthle cell tumor. The Hurthle cell tumor was, based on clinical evidence, thought to be benign. This is the first description of a FDG PET-positive benign Hurthle cell tumor, with FDG PET-negative liver metastases of a malignant melanoma, in the same patient.

Key words: MelanomaHurthle cell tumorOncocytomaThyroid adenomaPET

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • W. Wiesner
    • 1
  • H. Engel
    • 2
  • G. K. von Schulthess
    • 2
  • G. P. Krestin
    • 1
  • I. Bicik
    • 2
  1. 1.Institute of Diagnostic Radiology, Department of Radiology, Hospital of the University of Zurich, Rämistrasse 100, CH-8091 Zurich, SwitzerlandCH
  2. 2.Institute of Nuclear Medicine, Department of Radiology, Hospital of the University of Zurich, Rämistrasse 100, CH-8091 Zurich, SwitzerlandCH