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Cervical MRI (magnetic resonance imaging) shows a cystic lesion (Red arrow) (45 x 41 x 35 mm3) behind the left lobe of the thyroid gland that exerted a mass effect on the trachea and the esophagus. (a) Coronal T2-weighted image: shows a hyperintense lesion. (b) Coronal T1-weighted image: shows a hypointense lesion. (c) Axial T1-weighted image after gadolinium injection: shows a hypointense non-enhancing lesion.
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Magnetic resonance imaging (MRI) showed a cystic lesion behind the left lobe of the thyroid gland that exerted a mass effect on the trachea and the esophagus (Figure 1).
(a) A fibrous cyst wall lined by a flattened epithelium (HE x 50). (b) Parathyroid cells: clear epithelial cells (HE x 400).
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Histological exam confirmed the diagnosis of PC (Figure 2).
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(a) Intra-operative view of a PC which was adjacent to the lower pole of the left lobe of the thyroid. (b) Gross appearance of a PC (surgical piece).
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The patient underwent a surgical excision of the cystic mass (Figure 3).