The Clinical Characteristics and CT Findings of Parotid and Submandibular Gland Tumours

Figure 6

A 59-year-old male diagnosed with ductal adenocarcinoma in the left submandibular gland. A round, ill-defined, inhomogeneous nodule with little punctate calcification and 1.9 cm length in the long axis was shown on plain CT ((a, b), white arrows). The tumour demonstrated heterogeneous moderate enhancement, and a slightly low-density area could be seen (c, d). HE staining and immunohistochemistry confirmed the diagnosis of ductal adenocarcinoma (e, f). Immunohistochemistry: P63 (−), calponin (−), S-100 (−), CK7 (+), Ki-67 (+, 40%), GCDFP-15 (focal, +), and TTF-1 (−).

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