Pleomorphic Adenoma Originating from Heterotopic Salivary Tissue of the Upper Neck: A Diagnostic Pitfall

<div>(a) Axial contrast-enhanced CT scan (soft tissue window) showing a well-demarcated mass (<i>arrow</i>) located on the left side in the upper cervical lymph node region (group IIA), with adipose cleavage plane between the mass, the submandibular salivary gland (<i>arrowhead</i>), and the sternocleidomastoid muscle (<i>asterisk</i>). (b) Coronal CT scan reconstruction (soft tissue window) showing a nodular lesion of the left thyroid lobe (<i>asterisk</i>) with peripheral macrocalcifications (<i>arrowhead</i>). A metastatic lymph node in the ipsilateral level IIA region (<i>arrow</i>) was suspected. (c) 3D CT reconstruction showing the left level IIA cervical mass in yellow, the submandibular salivary glands in pink, and the thyroid gland in purple with the left lobe nodule represented in light blue. Arteries are rendered in red and veins in blue.</div>

Case Reports in Otolaryngology

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Figure 1

Figure 1: Pleomorphic Adenoma Originating from Heterotopic Salivary Tissue of the Upper Neck: A Diagnostic Pitfall 