갑상선유두상암의 낭성 전이로 오인된 경부의 다발성 신경초종
Multiple Cervical Schwannomas Mimicking Metastatic Lymph Nodes from Papillary Thyroid Cancer
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We report a case of multiple cervical schwannomas mimicking cervical nodal metastasis in a 45-year-old female patient with papillary thyroid carcinoma. Ultrasonography revealed a hypoechoic lesion with irregular contour in the left isthmus of the thyroid gland. A contrast-enhanced CT of the neck showed two wellcircumscribed, cystic masses in the left cervical level II. The preoperative results of ultrasonography guided fine needle aspiration biopsy from both thyroid and lateral neck masses were papillary thyroid cancer and atypical cell, respectively. Considering clinical and imaging results, the lateral neck masses were suspected to be metastatic cervical lymphadenopathy. During surgery, however, we identified that two lateral neck masses were originated from spinal accessory nerve and cervical plexus. The pathologic examination confirmed that lateral neck masses were typical schwannomas. Before surgery, it is important to make every efforts to discriminate metastatic lymphadenopathy from the cystic neck mass in patients with papillary carcinoma.
Abstract
We report a case of multiple cervical schwannomas mimicking cervical nodal metastasis in a 45-year-old female patient with papillary thyroid carcinoma. Ultrasonography revealed a hypoechoic lesion with irregular contour in the left isthmus of the thyroid gland. A contrast-enhanced CT of the neck showed two wellcircumscribed, cystic masses in the left cervical level II. The preoperative results of ultrasonography guided fine needle aspiration biopsy from both thyroid and lateral neck masses were papillary thyroid cancer and atypical cell, respectively. Considering clinical and imaging results, the lateral neck masses were suspected to be metastatic cervical lymphadenopathy. During surgery, however, we identified that two lateral neck masses were originated from spinal accessory nerve and cervical plexus. The pathologic examination confirmed that lateral neck masses were typical schwannomas. Before surgery, it is important to make every efforts to discriminate metastatic lymphadenopathy from the cystic neck mass in patients with papillary carcinoma.
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