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Minocycline-induced black thyroid gland: Medical curiosity or a marker for papillary cancer?
C Birkedal1, W J Tapscott, K Giadrosich
1Department of Surgery, Baptist Health Systems, Birmingham, Alabama, USA.
Current Surgery
|August 12, 2005
Abstract
Purpose:
Black pigmentation of the thyroid gland is a rare side effect of minocycline.
Methods:
Only 26 cases, in addition to the 2 we present, have been reported in the literature. Eleven cases of thyroid carcinoma associated with black thyroid syndrome have been reported.
Conclusions:
The incidence of papillary cancer may be increased in thyroid glands stained by the minocycline pigment, which warrants an increased index of suspicion in patients who develop thyroid nodules and have previously been treated with minocycline.
