RT Journal Article
SR Electronic
T1 Late Manifestation of Struma Peritonei and Widespread Functioning Lesions in the Setting of Struma Ovarii Simulating Highly Differentiated Follicular Carcinoma
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP 231
OP 233
DO 10.2967/jnmt.114.149294
VO 43
IS 3
A1 Ranade, Rohit
A1 Rachh, Swati
A1 Basu, Sandip
YR 2015
UL http://tech.snmjournals.org/content/43/3/231.abstract
AB Malignant transformation of struma ovarii is a rare event observed in about 5% of cases. We present here an unusual case that closely simulated highly differentiated follicular carcinoma, an entity with a relatively similar appearance to malignant struma ovarii. In our case, peritoneal and systemic dissemination occurred 18 y after excision of struma ovarii, which had been reported as histopathologically benign. There were 3 noteworthy features in the case: the highly functioning nature of the lesions (evidenced by a low level of thyroid-stimulating hormone even without thyroxine suppression); the low to minimal 18F-FDG avidity of the foci, which reiterates the well-differentiated nature of these lesions, as expected in highly differentiated follicular carcinoma; and prominent involvement of rare sites such as spleen and liver, in addition to usual sites such as lungs, peritoneum, and bilateral adnexae.