Calcified ectopic TSH-secreting pituitary adenoma mimicking craniopharyngioma: a rare case report and literature review.

Hanaoka, Yoshiki; Ogiwara, Toshihiro; Kakizawa, Yukinari; Nagm, Alhusain; Seguchi, Tatsuya; Aoyama, Tatsuro; Koyama, Jun-Ichi; Sato, Atsushi et al. · Acta Neurochir (Wien) · 2018

case_report · Level V

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Abstract

Among pituitary adenomas, which are relatively common brain tumors, elements of ectopic, thyroid-stimulating hormone (TSH) secretion, and intratumoral calcification are unusual. Here, we present an extremely rare case of a calcified ectopic TSH-secreting pituitary adenoma arising from the pars tuberalis mimicking craniopharyngioma based on neuroimaging findings. To our knowledge, this is the first case report of calcified ectopic TSH-secreting pituitary adenoma without symptoms of excessive thyroid hormone secretion.

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