It is usually accidentally found via radiograph during other dental treatments because patients often present no abnormal clinical symptom. Pdf stafne bone defect in the ramus of the mandible. Ct scan reveals a cortical defect arrow in the lingual surface of the right mandibular angle, a finding that does not represent a true cyst. Differential diagnosis of stafne idiopathic bone cyst with. Stafne bone defects of the anterior mandible are very rare, with around 50 cases reported in the english literature. The source of epithelium is from the enamel organ, the reduced enamel epithelium, the cell rests of malassez or the remnants of the dental lamina. Enlargement of a stafne cyst as an indication for surgical.
Stafnes bone cyst sbc is an asymptomatic, round or ovalshaped, welldefined, uniform radiolucent lesion, usually incidentally observed in the posterior aspects of the mandible. Odontogenic cysts are those which arise from the epithelium associated with the development of teeth. Stafne cyst is also known as lingual salivary gland depression, lingual mandibular bone depression, developmental salivary gland defect, stafne bone. Stafnes bone cyst, static bone cavity, developmental bone defect of the mandible, lingual mandibular salivary gland depression and many others, including combinations of the above. Stafne bone cavity containing ectopic parotid gland brazilian. Radiographic evaluation on prevalence of stafne bone.
It is usually an incidental finding and represents a depression in the medial aspect of the mandible filled by part of the submandibular gland or adjacent fat. Stafne bone cyst, stafne bone cavity, static bone cavi. Stafne bone cavity containing ectopic parotid gland. Asymptomatic lesion occurs in the 5th and 6th decade of life. Pdf on apr 1, 2003, francesco longo and others published stafnes. Stafne cysts are considered stable structural changes of the mandible and do not require surgical intervention. The classic stafne bone defect sbd is a rare small welldemarcated. Odell guys kings and st thomas dental institute, guys hospital and kings college, london, uk introduction this report describes an unusual stafne bone cavity lingual mandibular salivary inclusion or cyst with an irregular shape. The histopathological examination revealed the absence of any cystic or tumor lesion and salivary gland. Stafne bone defect of the molar region of the mandible.
Stafne bone cavities are asymptomatic radiolucencies seen at the angle of the mandible. Stafne bone defects are asymptomatic lingual bone depressions of the lower jaw. Stafnes cyst defined as static lesions located in the angle of mandible. When your dental surgeon looks at your xrays, there is more to see than just the wisdom teeth. Stafnes bone defect sbd is an uncommon mandibular defect. Through panoramic radiography an ovoid or round radiolucency can be observed near the angle of mandible, usually located between the inferior alveolar nerve. Traumatic bone cyst or stafnes defect download pdf. Stafne bone cavities, also known as stafne bone cyst, static bone cavity of the mandible, or lingual salivary gland inclusion defect, are cortical defects near the angle of the mandible below the mandibular canal.
Differential diagnosis of stafne idiopathic bone cyst with digital volume tomography dvt. The aim of this study was to investigate the frequency of stafne bone defect sbd and to describe the clinical and radiological characteristics of detected cases. Cystic and cysticappearing lesions of the mandible. A stafne cyst is a cortical defect near the angle of the mandible below the inferior alveolar canal. Stafne bone cavity sbc, commonly known as stafne bone cyst or defect is. First rule out keratotic, ameloblastic or other neoplastic cysts. They are generally asymptomatic and incidental lesion findings may be diagnosed during a radiographic. This article aims to help outline the differential diagnosis for cystic mandibular lesions, outline the key imaging features, and suggest recommendations for further imaging andor intervention. We describe the mr imaging findings of a stafne bone cavity, describe the contents, explain why a new name is needed, and discuss the relative merits of different. Stafne bone cavity sbc is a rare mandibular defect, and the diagnosis and management may be.
Stafne bone defects sbds were first described by stafne as usually unilateral, asymptomatic, welldefined radiolucent lingual bony defects located at the posterior region of the mandible below the inferior dental canal. Associated with an erupted but nonviable tooth, it is probably at the apex. Stafnes bone cavity sbc is a localized, nonprogressive, non healing lesion of mandible 1,3,4,7,8. Prevalence of stafnes cyst a retrospective analysis of 18,040. Typically they appear as lingual, open, ovoid lesions of the molar region of the lower jaw, and most contain parts of the. The term cyst reflects the description on older xray studies. We attend one 46yearold male patient came for diagnostic evaluation of a rounded and radiolucent lesion in the transition of the subcondylar region and neck of the left mandible ramus incidentally found by a dentist. They provide valuable information about your anatomy and they help your dental surgeon to identify. In this case report, two unusual cases of posterior and anterior stafne bone cysts are presented with threedimensional. It is a developmental abnormality that commonly presents as a small, well demarcated, and asymptomatic radiolucency seen at the angle of the mandible below the mandibular canal. Stafnes bone defect is a benign lesion appearing on the image as a round radiolucent lesion within a cortical defect on the mandible. The bone defects of two patients in this study were asymptomatic and any other bone lesions, such as cysts and tumors, were excluded. This is a temporary file and hence do not link it from a website, instead link the url of this page if you wish to link the pdf file.
This report describes an unusual case of trilobate stafne bone cavity in a 72yearold male asymptomatic patient, presenting as a radiolucency in the left mandibular body with an irregular peripheral border and a central area of reduced density on panoramic radiograph. The large cone beam ct scans capture a complete image of your teeth, jaws, sinuses, and jaw joints. Stafne cysts are small cortical defects near the angle of the mandible below the mandibular canal. A stereosialographic study of developmental figure 3 shows panoramic and coronal. As these radiographic findings were consistent with a stafne bone cyst, no operative treatment was conducted and the lesion was monitored. Diagnosis is commonly by plain xray, but use of more accurate imaging such as. Stafne bone cavity da schaerlaken, m dom, j hintjens, k chapelle, s dekeyzer and filip vanhoenacker ugent 2015 journal of the belgian society of radiology. It was first described by stafne in 1942 and is one of the rarer nonodontogenic abnormalities1. Radiological assessmentof type ii stafne idiopathic bone cyst ina patientundergoing implant therapy. Most of them are asymptomatic and become evident between the third and fourth decades of life.
Incidental mandibular lesion in a patient with head and. Simple diagnostic approach for mandible and maxilla lesions. A retrospective study was performed using panoramic radiographs from 34 221 patients undergoing dental treatment in the department of oral and maxillofacial radiology at erciyes. Request pdf differential diagnosis of stafne idiopathic bone cyst with digital volume tomography dvt the distinction between a pseudocyst and an intervention demanding cyst or process cannot. Investigation and differential diagnosis of stafne bone cavities with. Stafne bone defects sbds are asymptomatic mandibular lingual bone depressions mainly caused by soft tissue inclusions. Prevalence of stafnes cyst a retrospective analysis of 18,040 orthopantomographs in western india.
Stafne bone cyst definition of stafne bone cyst by. It is usually an incidental finding and strictly speaking it. Stafne bone defect include stafne bone cyst, latent bone cyst, static bone cyst. Stafnes bone cyst is usually asymptomatic being diagnosed on the routine radiographs as an incidental.
Has many features of odontogenic tumor, therefore it is placed in the category of tumors in the latest who classification of odontogenic cysts and tumors. The stafne defect is thought to be a normal anatomical variant, as the. In past it was considered as a cyst, but rather it is a variation in the development of the bone cortex and hence the term cavity or defect is more appropriate. Stafne bone defect of the molar region of the mandible sciencedirect. At surgical exploration, an aberrant lobe of the submandibular gland, or occasionally fat, is found to extend into the depression. In january 2011, a panoramic tomogram showed a significant enlargement of the bony defect, and the patient was consequently referred to our clinic. Pdf the stafne s bone defect have controversial diagnoses because it can be mistaken with benign and malignant lesions of the jaws. The full text of this article is available as a pdf 112k. Stafnes cyst sc is a bone depression found on the lingual side of the mandible. The stafne bone cavity sc was first described in 1942 by edward stafne, which reported 35 cases of unilateral, radiolucent and asymptomatic cavities located between the lower first molar and the mandibular angle 1.
Philadelphia, saunders, 1975, pp 147168 verbin rs, barnes l. Anterior stafne bone defect mimicking a residual cyst. The classic stafne bone defect is a rare developmental mandibular defect that commonly presents as a small welldemarcated radiolucent lesion at the molar region of the mandible near the mandibular angle and below the mandibular canal. The mandibular salivary gland defect stafnes bone cyst. Through panoramic radiography an ovoid or round radiolucency can be observed near the angle of mandible, usually located between the inferior alveolar nerve and the lower margin. Anterior stafne bone defect mimicking aresidual cyst. Stafne bone cavities are usually found in men 5070 years old. In 1942, stafne described for the first time 35 asymptomatic, radiolucent cavities, unilaterally located in the posterior region of the mandible, between the mandibular angle and the third molar, below the inferior dental canal and slightly above the basis mandibulae. Stafne bone cavity, first described by stafne in 1942, 1 is a benign lesion of the mandible that is an asymptomatic round or elliptical radiolucency located below the inferior alveolar canal and between the angle of the mandible and the first molar tooth. A case of simultaneous unilateral anterior and posterior.
Reddy 1, heather imsande 2, anita gohel 3 and osamu sakai 1 2 audio available share claim cme. Stafne cyst remodelling of the mandibular cortex around salivary tissue 50. The mandibular salivary gland defect is a developmental anomaly of the medial aspect of the lower mandible. Prevalence of stafnes cyst a retrospective analysis of. Radiologic and pathologic characteristics of benign and. Radiographic evaluation of stafne bone cyst in patients.
Incisive canal cyst heart shaped superimposed anterior nasal spine. Since then, many terms have been used to describe this entity. Diagnosis of stafnes bone cavity with dental computerized. The stafne defect also termed stafnes idiopathic bone cavity, stafne bone cavity, stafne bone cyst misnomer, lingual mandibular salivary gland depression, lingual mandibular cortical defect, latent bone cyst, or static bone cyst is a depression of the mandible on the lingual surface the side nearest the tongue. They are generally asymptomatic and incidental lesion findings may be diagnosed. An unusual trilobate stafne bone cavity springerlink. Diagnosis and management of stafne bone cavity with emphasis on. Cyst generated after exodontia are called residual cyst, most of which derived from radicular cyst.
Lingual salivary gland inclusion defect stafne cyst is a welldefined depression in the lingual surface of the posterior body of the mandible, 1, usually near the mandibular angle, 2. Although plain films are often sufficient for diagnosis, confirmatory imaging is needed in atypical cases. Stafne s bone defect sbd is an uncommon mandibular defect. An unusual presentation of stafne bone cyst springerlink. Case courtesy of dr amir elhamy, theodor bilharz institute, egypt. Cystic and cysticappearing lesions of the mandible are commonly noted on head and neck imaging and present a diagnostic dilemma for the radiologist. The lesion was first described by stafne in 1942, hence the eponym. They call it lingual salivary gland depression very descriptive then discuss all the other names in the text. Although posterior sbd is easily diagnosed by the unique location on radiography, anterior sbd is sometimes misdiagnosed and confused with other pathological.