Department of Oral & Maxillofacial Pathology Sri Guru Ram Das Institute of Dental sciences & Research, Amritsar, Punjab, India.
Ann Diagn Pathol. 2012 Apr;16(2):119-23. doi: 10.1016/j.anndiagpath.2011.07.004. Epub 2011 Nov 3.
Odontogenic cysts commonly encountered in dental practice are the radicular cysts and dentigerous cysts. Apart from the developmental origin of dentigerous cysts, an inflammatory origin has also been suggested. It has been reported that inflammation progressing from the root apex of the deciduous tooth brings about development of the dentigerous cyst around the unerupted permanent tooth. The aim of the present article is to report 4 additional cases of dentigerous cyst believed to be of inflammatory origin and to highlight the diagnostic dilemma in segregating both the entities. The 4 cases were of patients with a mixed dentition with the pathology related to the deciduous tooth present. Radiographically, pericoronal radiolucency was seen attached at the cementoenamel junction of impacted tooth and in continuation with lamina dura of deciduous tooth. Microscopically, the cystic cavity was lined by reduced enamel epithelium like lining, which was hyperplastic to anastomosing in areas in few cases. This study proposes the predicament in accurately diagnosing such cases.
在牙科临床中常见的牙源性囊肿有根侧囊肿和含牙囊肿。除了含牙囊肿的发育起源外，其也被认为具有炎症起源。有报道称，从乳牙根尖进展的炎症会导致未萌出的恒牙周围形成含牙囊肿。本文的目的是报告另外 4 例被认为具有炎症起源的含牙囊肿病例，并强调在区分这两种病变时存在的诊断困境。这 4 例患者均为混合牙列期，病变与未萌出牙的乳牙有关。放射学上，可见附着于埋伏牙的牙骨质-釉质交界处的环状透亮影，并与乳牙的硬骨板连续。镜下，囊腔由类似于釉质上皮的变薄的上皮衬里，在少数情况下，在某些区域呈增生性吻合。本研究提出了准确诊断此类病例的困境。
