Abstract
BackgroundJaw pseudocysts are benign osseous lesions of unclear etiology. Among these, the simple bone cyst (SBC) and aneurysmal bone cyst (ABC) are intriguing bone pathologies still rarely studied together. This retrospective study aimed to present the long-term case series of patients with jaw pseudocysts focusing on the clinical, radiographic, and transoperative aspects.Material and MethodsA retrospective case series of patients with SBC and ABC was performed. Clinical, radiographic, and transoperative aspects of both pseudocysts were reviewed from the histopathological archives of 20,469 cases between 1959-2012. All descriptive data were summarized.ResultsOf 354 (15.25%) bone pathologies, 54 cases of jaw pseudocysts were found, with 42 (11.86%) SBC and 12 (3.39%) ABC cases. For both lesions, most of the sample were young Caucasian women with an asymptomatic posterior mandible lesion with undetermined time of evolution and none trauma history. A unique radiolucent scalloped lesion presenting an empty cavity were also observed for both conditions. However, some atypical findings were found for SBC including: the expansion of bone cortical, tooth resorption, displacement of the mandibular canal, and recurrence. The absence of painful symptoms and the lack of classical blood-filled cavity were observed in some cases of ABC.ConclusionsThe SBC and ABC are bone pathologies with few retrospective studies, no previous studies on the two conditions, varied nomenclature, and atypical aspects in some cases. Therefore, the knowledge of clinical, imaging, and transoperative features of such pseudocysts are clinically valuable as diagnosis hypothesis of radiolucent lesions of the jaws. Key words:Simple bone cyst, aneurysmal bone cyst, pseudocysts, jaws.
Highlights
By definition, a pseudocyst is a pathological cavity without lining epithelium and with clinical and radiographic similarities to true cysts, except for histopathological findings [1,2]
Among the pseudocysts of maxillary bones, the Simple Bone Cyst (SBC), known as Traumatic Bone Cyst, Hemorrhagic Bone Cyst, Solitary Bone Cyst, and Idiopathic Bone Cavity appears as a rare pathology [1,2]
The clinical, imaging, and histopathological aspects are well described, retrospective studies focused on the epidemiology and unusual clinical aspects of these jaw pseudocysts are still scarce
Summary
A pseudocyst is a pathological cavity without lining epithelium and with clinical and radiographic similarities to true cysts, except for histopathological findings [1,2]. The Aneurysmal Bone Cyst (ABC) is a pseudocyst similar to SBC in various aspects: most frequently found in the long bones (50%) and spine (20%), but rarely manifests in the jaw bones (2%) [3,4]. The etiology and pathogenesis of SBC are still uncertain and the literature suggests the presence of intraosseous hematoma caused by trauma, venous obstruction, disturbance of the local bone growth or changes in bone metabolism [2] These events may result in blood clot liquefaction and bone lysis [2]. The simple bone cyst (SBC) and aneurysmal bone cyst (ABC) are intriguing bone pathologies still rarely studied together This retrospective study aimed to present the long-term case series of patients with jaw pseudocysts focusing on the clinical, radiographic, and transoperative aspects. The knowledge of clinical, imaging, and transoperative features of such pseudocysts are clinically valuable as diagnosis hypothesis of radiolucent lesions of the jaws
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
