A Rare False-Positive Whole-Body Scan in a Patient With Differentiated Thyroid Cancer: Unilateral Conjunctival Concretions

Ak Sivrikoz I., Deveci H., Yildirim N.

CLINICAL NUCLEAR MEDICINE, vol.49, no.5, pp.451-453, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Editorial Material
  • Volume: 49 Issue: 5
  • Publication Date: 2024
  • Doi Number: 10.1097/rlu.0000000000005155
  • Journal Name: CLINICAL NUCLEAR MEDICINE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE
  • Page Numbers: pp.451-453
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

131I has been used effectively over the years in both diagnosis and therapy of differentiated thyroid cancer (DTC). Although whole-body scan with 131I is a highly sensitive tool for detecting normal thyroid tissue and metastasis of DTC, it is not specific; therefore, false-positive images can be seen in clinical practice, and their recognition is critical for correct management. Evaluation of false-positive uptake is important because it may be confused with metastatic involvement. Here, we present a rare false-positive result of whole-body scan in a patient with DTC. To our knowledge, it is the first report on 131I uptake of conjunctival concretions.