Multiple sialolithiasis in the parotid gland with Sjögren's syndrome and its sonographic findings—report of 3 cases

Mayumi Shimizu, Kazunori Yoshiura, Eiji Nakayama, Shigenobu Kanda, Seiji Nakamura, Yukiko Ohyama, Norifumi Nakamura
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics 2005, 99 (1): 85-92
We present 3 cases of Sjögren's syndrome in which multiple sialolithiasis were observed in the parenchyma of the parotid gland. The sonographic examinations showed microliths that were observed as hyperechoic spots. Some of the microliths were accompanied with comet sign, however most of them showed no particular posterior echoes. None of them showed acoustic shadows, which are normally observed in cases with sialolithiasis. We were able to prove that some of the hyperechoic spots observed sonographically in patients with severe Sjögren's syndrome were microliths. Although these multiple microliths are rarely detected, they may exist potentially in higher frequency in patients with severe Sjögren's syndrome.

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