Magnusson B, Borrman H
Department of Oral Pathology, Faculty of Odontology, Göteborg University, Sweden.
Swed Dent J. 1995;19(1-2):1-7.
This retrospective study describes the clinical, radiographic and histological features of 26 paradental cysts. These cysts comprised 0.9% of the 2700 cases of jaw cysts diagnosed in 9 years. The true incidence is, however, probably greater since many cases are misdiagnosed. The cysts occurred in relation to partly or fully erupted teeth and were all located in the mandible. An equal sex distribution was found and clinical symptoms in the form of swelling was the main finding especially for the paradental cysts located in the first and second molar area. The radiographic characteristics of the paradental cysts were found to be rather variable. The borders of the cysts adjacent and distal to the third molars were more distinct than the borders of the cysts in the first and second molar area. Histologically, all the cysts were lined by a nonkeratinized stratified squamous epithelium with edema and migration of neutrophils through the epithelium. In most cases, the epithelium was markedly hyperplastic. The connective tissue wall was infiltrated by neutrophils, lymphocytes and plasma cells.
这项回顾性研究描述了26例牙周囊肿的临床、影像学和组织学特征。这些囊肿占9年中诊断出的2700例颌骨囊肿的0.9%。然而，实际发病率可能更高，因为许多病例被误诊。囊肿与部分或完全萌出的牙齿有关，均位于下颌骨。发现性别分布均等，肿胀形式的临床症状是主要表现，尤其是位于第一和第二磨牙区域的牙周囊肿。牙周囊肿的影像学特征相当多变。第三磨牙相邻和远侧的囊肿边界比第一和第二磨牙区域的囊肿边界更清晰。组织学上，所有囊肿均内衬非角化复层鳞状上皮，伴有水肿和中性粒细胞穿过上皮迁移。在大多数情况下，上皮明显增生。结缔组织壁有中性粒细胞、淋巴细胞和浆细胞浸润。
