PT  - JOURNAL ARTICLE
AU  - Yan, Di
AU  - Doss, Mohan
AU  - Mehra, Ranee
AU  - Parsons, Rosaleen B.
AU  - Milestone, Barton N.
AU  - Yu, Jian Q.
TI  - False-Positive Scalp Activity in <sup>131</sup>I Imaging Associated with Hair Coloring
AID  - 10.2967/jnmt.112.117416
DP  - 2013 Mar 01
TA  - Journal of Nuclear Medicine Technology
PG  - 43--45
VI  - 41
IP  - 1
4099  - http://tech.snmjournals.org/content/41/1/43.short
4100  - http://tech.snmjournals.org/content/41/1/43.full
SO  - J. Nucl. Med. Technol.2013 Mar 01; 41
AB  - A patient with metastatic papillary thyroid carcinoma (after surgical resection of tumor and positive lymph nodes) undergoing thyroid ablation therapy with 131I is described. Whole-body scintigraphy was performed 1 wk after ablation therapy to evaluate the presence of residual disease. The whole-body images demonstrated an artifact caused by tracer accumulation in the patient’s scalp related to recent hair coloring. Common etiologies of false-positive 131I scintigraphic findings are briefly reviewed. The importance of taking preventative measures to decrease the number of false-positive findings and recognizing these findings when they occur is discussed.