Advanced Clinical Usefulness of Ultrasonography for Diseases in Oral and Maxillofacial Regions
Figure 1
(a) B-mode in ultrasonography of a 58-year-old man with a pleomorphic adenoma in the left submandibular gland. The arrowheads indicate the mass lesion with an echogenic signal and a clear margin in the left submandibular gland. We diagnosed the mass clinically as a benign submandibular-related tumor. (b) A pathological specimen of the mass lesion in Figure 1(a). An area showing a mixture of epithelial and spindle-shaped myoepithelial elements in a variable background stroma that may be mucoid, myxoid, cartilaginous, or hyaline on the specimen. The specimen was diagnosed as a pleomorphic adenoma. (c) B-mode in ultrasonography of a 54-year-old woman with chronic lymphadenitis in the submandibular space. The arrowheads indicate the mass lesion with an echogenic signal and a clear margin in the submandibular space; the arrows indicate normal submandibular gland tissue. We clinically diagnosed the mass as chronic lymphadenitis.
