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Substernal Thyroid Biopsy Using Endobronchial Ultrasound-guided Transbronchial Needle Aspiration
Published on: November 10, 2014
Primary schwannoma of the thyroid gland presenting as an asymptomatic cold nodule
Ofir Uri1, Elzbieta Baron, Oleg Lefel
1Bruce Rappaport Faculty of Medicine, Department of Surgery A, Carmel Medical Center, The Technion-Israel Institute of Technology, Haifa, Israel. ofiruri@gmail.com
Abstract:
Schwannomas are benign neoplasms that may arise from Schwann cells of the nerve sheath all over the body. Although schwannomas of the head and neck region are common, the thyroid gland is a rare site for schwannomas, with little documentation in the literature. Presented is a case of a 57-year-old woman who was evaluated in our outpatient clinic for hypothyroidism because of Hashimoto thyroiditis. Thyroid ultrasound revealed a single prominent nodule, which was cold on technetium Tc 99m thyroid scan. Fine needle aspiration of the nodule had aroused suspicion for malignant thyroid neoplasm. Complete thyroidectomy was undertaken without complications. Microscopic examination and immunohistochemical stains supported the diagnosis of a primary thyroid schwannoma.
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