The mandibular salivary gland defect stafnes bone cyst. Stafnes bone defect sbd is an uncommon mandibular defect. Stafne bone cavity sbc is a rare mandibular defect, and the diagnosis and management may be. Stafne bone cavities are asymptomatic radiolucencies seen at the angle of the mandible. They are generally asymptomatic and incidental lesion findings may be diagnosed during a radiographic. 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.
Anterior stafne bone defect mimicking a residual cyst. Stafne bone cavity sbc, commonly known as stafne bone cyst or defect is. A stafne cyst is a cortical defect near the angle of the mandible below the inferior alveolar canal. Stafnes bone cyst sbc is an asymptomatic, round or ovalshaped, welldefined, uniform radiolucent lesion, usually incidentally observed in the posterior aspects of the mandible. The classic stafne bone defect sbd is a rare small welldemarcated. Anterior stafne bone defect mimicking aresidual cyst. Stafne bone cyst, stafne bone cavity, static bone cavi. Diagnosis and management of stafne bone cavity with emphasis on. 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.
Stafne cyst remodelling of the mandibular cortex around salivary tissue 50. Typically they appear as lingual, open, ovoid lesions of the molar region of the lower jaw, and most contain parts of the. When your dental surgeon looks at your xrays, there is more to see than just the wisdom teeth. It is usually accidentally found via radiograph during other dental treatments because patients often present no abnormal clinical symptom. In this case report, two unusual cases of posterior and anterior stafne bone cysts are presented with threedimensional. Stafne bone defect of the molar region of the mandible sciencedirect. Stafne bone defects are asymptomatic lingual bone depressions of the lower jaw. Cystic and cysticappearing lesions of the mandible are commonly noted on head and neck imaging and present a diagnostic dilemma for the radiologist. 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.
Prevalence of stafnes cyst a retrospective analysis of 18,040 orthopantomographs in western india. As these radiographic findings were consistent with a stafne bone cyst, no operative treatment was conducted and the lesion was monitored. Stafne bone defect of the molar region of the mandible. 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. The histopathological examination revealed the absence of any cystic or tumor lesion and salivary gland. Through panoramic radiography an ovoid or round radiolucency can be observed near the angle of mandible, usually located between the inferior alveolar nerve. Odontogenic cysts are those which arise from the epithelium associated with the development of teeth. An unusual trilobate stafne bone cavity springerlink. Stafne bone cyst definition of stafne bone cyst by. Prevalence of stafnes cyst a retrospective analysis of 18,040. 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. Although plain films are often sufficient for diagnosis, confirmatory imaging is needed in atypical cases. 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.
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. 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. 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 cavities are usually found in men 5070 years old. Radiological assessmentof type ii stafne idiopathic bone cyst ina patientundergoing implant therapy. 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. The large cone beam ct scans capture a complete image of your teeth, jaws, sinuses, and jaw joints. 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. Stafne bone defects of the anterior mandible are very rare, with around 50 cases reported in the english literature. Differential diagnosis of stafne idiopathic bone cyst with. The mandibular salivary gland defect is a developmental anomaly of the medial aspect of the lower mandible.
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. Philadelphia, saunders, 1975, pp 147168 verbin rs, barnes l. Although posterior sbd is easily diagnosed by the unique location on radiography, anterior sbd is sometimes misdiagnosed and confused with other pathological. Pdf the stafne s bone defect have controversial diagnoses because it can be mistaken with benign and malignant lesions of the jaws. The lesion was first described by stafne in 1942, hence the eponym. Stafne cysts are considered stable structural changes of the mandible and do not require surgical intervention. Simple diagnostic approach for mandible and maxilla lesions. Radiographic evaluation of stafne bone cyst in patients. Pdf on apr 1, 2003, francesco longo and others published stafnes. They are generally asymptomatic and incidental lesion findings may be diagnosed.
Traumatic bone cyst or stafnes defect download pdf. A case of simultaneous unilateral anterior and posterior. 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. Radiographic evaluation on prevalence of stafne bone. 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. Diagnosis is commonly by plain xray, but use of more accurate imaging such as. 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. Incidental mandibular lesion in a patient with head and. Case courtesy of dr amir elhamy, theodor bilharz institute, egypt. Stafne cysts are small cortical defects near the angle of the mandible below the mandibular canal. At surgical exploration, an aberrant lobe of the submandibular gland, or occasionally fat, is found to extend into the depression.
Enlargement of a stafne cyst as an indication for surgical. Stafne cysts differential diagnosis includes odontogenic or nonodontogenic cystic lesions, fibrous dysplasia, nonossifying fibroma, brown tumor of hyperparathyroidism, osteoporotic bone marrow defect. Stafnes bone defect is a benign lesion appearing on the image as a round radiolucent lesion within a cortical defect on the mandible. First rule out keratotic, ameloblastic or other neoplastic cysts. Pdf on oct 1, 2017, karthikeya patil and others published stafne bone cyst.
An unusual presentation of stafne bone cyst springerlink. Reddy 1, heather imsande 2, anita gohel 3 and osamu sakai 1 2 audio available share claim cme. Cystic and cysticappearing lesions of the mandible. The term cyst reflects the description on older xray studies. 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. The radiolucency may be unilocular or multilocular. Also called as odontogenic ghost cell cyst or gorlin cyst. Stafne bone cavity containing ectopic parotid gland brazilian. Stafnes bone cavity sbc is a localized, nonprogressive, non healing lesion of mandible 1,3,4,7,8. 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. 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. Stafnes cyst defined as static lesions located in the angle of mandible.
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. Cyst generated after exodontia are called residual cyst, most of which derived from radicular cyst. Stafne cyst is also known as lingual salivary gland depression, lingual mandibular bone depression, developmental salivary gland defect, stafne bone. Stafne bone defects sbds are asymptomatic mandibular lingual bone depressions mainly caused by soft tissue inclusions. Diagnosis of stafnes bone cavity with dental computerized. In january 2011, a panoramic tomogram showed a significant enlargement of the bony defect, and the patient was consequently referred to our clinic. They call it lingual salivary gland depression very descriptive then discuss all the other names in the text. 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. Investigation and differential diagnosis of stafne bone cavities with. 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. 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. Stafne s bone defect sbd is an uncommon mandibular defect.
Stafnes cyst sc is a bone depression found on the lingual side of the mandible. 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. 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. It is usually an incidental finding and strictly speaking it.
First described in 1942, stafne bone defects sbds, are welldefined, radiolucent lingual depressions of the lower jaw bone that are asymptomatic and most frequently diagnosed in middleaged men. Pdf stafne bone defect in the ramus of the mandible. 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 stafne defect is thought to be a normal anatomical variant, as the. A stereosialographic study of developmental figure 3 shows panoramic and coronal. Prevalence of stafnes cyst a retrospective analysis of. Idiopathic bone cavity, static bone cyst, stafne cyst. Differential diagnosis of stafne idiopathic bone cyst with digital volume tomography dvt. Incisive canal cyst heart shaped superimposed anterior nasal spine. 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.
Most of them are asymptomatic and become evident between the third and fourth decades of life. Associated with an erupted but nonviable tooth, it is probably at the apex. They provide valuable information about your anatomy and they help your dental surgeon to identify. Since then, many terms have been used to describe this entity. Asymptomatic lesion occurs in the 5th and 6th decade of life. 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.68 1410 255 1240 945 884 23 729 852 168 917 486 1148 1322 73 1132 91 488 880 1010 661 373 875 461 421 365 1025 510 210 1494 917 1136 1457 1259 1332 116 601 849 293 995 363