Samson J, Carlino P, Di Felice R, Fiore-Donno G
Dipartimento di Chirurgia Orale, Facoltà di Medicina di Ginevra.
Minerva Stomatol. 1990 Jul;39(7):573-85.
Salivary gland tissue inclusions in the mandible appear as well delimited radiolucency areas, asymptomatic, usually located in the mandibular angle and sometimes in the premolar canine and symphysis regions. The examination of 8,500 radiographs has demonstrated an incidence of one radiolucent area at the mandibular angle every 500 radiographs. Our result is slightly inferior to the mean reported in the literature. Seven cases were examined. Six of them have been treated surgically and histologically. At exploration a defect in the lingual cortical plate was found. The cavities were filled by salivary gland tissue. The contents of the cavities were attached via the lingual cortical defect to the near salivary gland. The cause of such radiolucency situated in the mandibular angle seems to be an altered resorption and apposition process of the bone triggered by a modification of the salivary glands elasticity; on the contrary, the salivary inclusions in the symphysis region is referred to as embryonic origin. In the literature different terms are used often in relation with a pathogenetical hypothesis; in this paper we suggest rather a description terminology such as intramandibular salivary tissue.
下颌骨中的唾液腺组织内含物表现为边界清晰的透射区，无症状，通常位于下颌角，有时也位于前磨牙、尖牙及正中联合区域。对8500张X线片的检查显示，每500张X线片中下颌角处出现一个透射区的发生率。我们的结果略低于文献报道的平均值。共检查了7例。其中6例接受了手术和组织学治疗。探查时发现舌侧皮质骨板有缺损。腔隙内充满唾液腺组织。腔隙内容物通过舌侧皮质缺损与附近的唾液腺相连。下颌角处这种透射区的原因似乎是唾液腺弹性改变引发的骨吸收和改建过程改变；相反，正中联合区域的唾液腺内含物被认为起源于胚胎。文献中经常根据不同的发病机制假说来使用不同的术语；在本文中，我们建议使用更具描述性的术语，如下颌骨内唾液组织。
