Langerhan's histiocytosis is a not uncommon disease, but a related disorder, Rosai-Dorfman (RDD) with extensive or exclusive extranodal distribution, is relatively rare. Ga and PET/CT imaging have typically been used for diagnosis and tracking response to treatment. The authors present a very unusual case wherein lesions of RDD actively accumulated Tc-sestamibi, which was injected as part of a scan to localize a parathyroid adenoma.
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Article Synopsis
- * A 53-year-old woman with a thyroid disorder was found to have hypercalcemia and elevated parathyroid hormone levels, leading to imaging tests that indicated a parathyroid adenoma.
- * Further testing revealed the issue was actually a toxic thyroid adenoma, and after receiving radioactive iodine treatment, her thyrotoxicosis and calcium levels returned to normal.
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