An unusual case of large, destructive stafne bone cavity. 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 radiologic techniques for. Stafne bone cyst definition of stafne bone cyst by. Asymptomatic lesion occurs in the 5th and 6th decade of life. Unusual presentation of a stafne bone cyst sciencedirect. Stafne, the first discoverer of the classic stafne bone defect, suggested that the bone defects are congenital and are caused by a failure of fusion in the areas formerly occupied by meckels cartilage. Stafne s bone cavity sbc is a localized, nonprogressive, non healing lesion of mandible 1,3,4,7,8. Stafnes bone cavity was an incidental finding, presenting no progressive changes. Cystic and cysticappearing lesions of the mandible. The stafne defect also termed stafne s 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. 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.
Pdf differential diagnosis of stafne idiopathic bone. The most widely obtain perspective surface of the mandible and adjacent to salivary gland. To supply radiologist a guide for diagnosis and classification of stafne bone cyst. Since then, many terms have been used to describe this entity. Stafne bone cyst when your dental surgeon looks at your xrays, there is more to see than just the wisdom teeth. Stafne bone cavity is round or ovoid, well circumscribed radiolucency located at the lingual cortex of mandible, below the inferior alveolar canal, mostly near the angle. Stafne bone defects sbds are asymptomatic lingual bone depressions of the lower jaw that are frequently caused by soft tissue inclusion.
On a radiograph, the radiolucency of a cyst is usually bordered by a radiopaque periphery of dense sclerotic bone. By definition, a cyst is an epitheliumlined cavity that contains fluid or semisolid material. Background stafne bone cyst sbc is a rare mandibular defect described by stafne in 1942. Stafne bone cavity which is also known as lingual mandibular bone defect is generally seen in the posterior region of the mandible. Stafne bone cyst, lingual mandibular salivary gland depression, latent bone cyst, static bone cyst. A 43year old male patient was referred to our clinic. 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. The purpose of this article is to present a case that was diagnosed as stafne bone defect using the cone beam ct. Radiographically, an sbc is usually seen as welldefined homogenous oval radiolucency in the mandibular posterior region, below the mandibular canal. To describe clinical features of the anterior stafne bone cyst. Ogunsalu, radiological assessment of type ii stafne.
Stafne bone cyst left mandible panoramic and periapical x. Complememtary technique such as ct are sufficient to establish a certain diagnosis. The aim of this study was to evaluate the radiographic features of stafne bone defects in patients referred to a private radiology center from march 20 to 2016 in mashhad, iran. It is usually an incidental finding and strictly speaking it is not a cyst as it does not contain any fluid. Stafne bone cavities are asymptomatic radiolucencies seen at the angle of the mandible. Stafne bone defects radiographic features in panoramic radiographs. 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. Nov 21, 2019 stafnes bone cyst sbc is an asymptomatic, round or ovalshaped, welldefined, uniform radiolucent lesion, usually incidentally observed in the posterior aspects of the mandible. Stafne bone cyst, lingual mandibular salivary gland. Stafne bone defects sbds are asymptomatic bone lesions that. Stafne bone defects of the anterior mandible are very rare, with around 50 cases reported in the english literature. Clinically, patients with sbd are usually asymptomatic. An unusual presentation of stafne bone cyst springerlink.
Stafne bone cavity of the mandible europe pmc article. Palpation of the floor of the mouth did not reveal any mass, again suggestive of the stafne bone cyst. In the present study, we describe a case of stafnesdefect. Anterior stafne bone defect mimicking a residual cyst cirugia bucal.
Jun 07, 20 may can produce expansion of the cortical bone. Discussion many terms have been used to describe asymptomatic radiolucencies at the angle of the mandible. 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. Jan, 2015 stafne bone cyst is a rare mandibular defect. Stafne bone cavity, also known as static bone cyst, is a developmental defect of the mandible in the form. Stafne bone cavity is an asymptomatic, static, lingual depression of the mandible. The stafne bone defect, also known as the stafne bone cyst, or stafne bone cavity, is an asymptomatic, static depression of the lingual aspect of the mandible that often appears as a radiolucent.
An unusual case of large, destructive stafne bone cavity with. In most cases, the defect is observed accidentally via xray panorama during other dental treatments. Age, sex, the existence of hypertension and the following ct findings. Bilateral stafne bone cavity in the anterior mandible with. Stafne bone cavity sbc, commonly known as stafne bone cyst or defect is mostly asymptomatic, appearing as a unilateral, round or ovoid. Ct analysis of the stafnes bone defects of the mandible. Objectives the distinction between a pseudocyst and an intervention demanding cyst or process cannot always be found by 2d radiology. Stafne bone cyst is generally encountered incidentally on routine plain radiograph. 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. One example of such a lesion is the stafne bone cyst. Named after the doctor who first identified the condition, the stafne bone cyst is not really a true cyst at all. Radiographic evaluation of stafne bone cyst in patients. Introduction stafne bone cavity is a rare abnormality, named after edward stafne, who first described the lesion in 1942.
The radiolucency may be unilocular or multilocular. Stafne bone cavity is a well demarcated defect of the mandible, usually asymptomatic and located in the posterior portion of the bone. A 52yearold female patient who with nasal bone fracture, visited the hospital. Pdf differential diagnosis of stafne idiopathic bone cyst. The large cone beam ct scans capture a complete image of your teeth, jaws, sinuses, and jaw joints. It is usually an incidental finding and represents a depression in the medial aspect of.
It commonly presents with a welldemarcated, asymptomatic, unilateral radiolucency that indicates lingual invagination of the cortical bone. Diagnosis is commonly by plain xray, but use of more accurate imaging such as mri is required in atypical cases. Stafne bone defect of the molar region of the mandible sciencedirect. Stafne propose that the cavity could be result from a failure of normal bone deposition in that region previously occupied by cartilage. The lesion is known by many synonyms, such as stafne lacune, static bone cavity, latent. Stafne bone cavity containing ectopic parotid gland. Stafne bone cavity is a rare mandibular defect that was first reported by edward c. In this paper, a rare case of posteriorvariant, double sbcs was presented. It was described for the first time by edward stafne in 19421, who reported 35 cases of asymptomatic, unilateral round or. Panoramic radiograph, mandible, bone cysts, salivary glands, stafne bone defect. Sbc is an invagination in the medial surface of the mandible and is considered as pseudocyst.
Instead, it is a developmental defect in the lower jaw that strongly resembles a cyst when viewed on an xray. Investigation and differential diagnosis of stafne bone cavities with. An unusual case of large, destructive stafne bone cavity with computed tomography findings mahmut sumer 1, aydan acikgoz 2, canan uzun 2, omer gunhan 3 1 department of oral and maxillofacial surgery, faculty of dentistry, ondokuz mayis university, samsun, turkey 2 department of dentomaxillofacial radiology, faculty of dentistry, ondokuz mayis university, samsun, turkey 3 department of. The lesion is known by many synonyms, such as stafne lacune, static bone cavity, latent bone cyst and lingual mandibular bone depression. An unusual case of double stafne bone cavities springerlink. Stafne bone cyst an indentation on the lingual surface of the mandible within which lies a portion of the submandibular gland. The radiographic appearance was highly suggestive of a stafne bone defect or stafne bone cyst. A 43year old male patient was referred to our clinic with. Stafnes bone defect sbd or stafnes bone cavity sbc is an uncommon bony defect occurred especially only at the lingual cortex of mandible. 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 bone cyst, stafne bone cavity, static bone cavi. Terms used to define this entity include stafne bone cyst, static bone cavity, latent bone cyst, lingual mandibular bone cavity, mandibular embryonic defect, idiopath ic bone concavity of the mandible, and developmen tal submandibular gland defect of the mandible. Stafne bone cyst also known as lingual mandibular bone defect of the mandible is believed to be caused by mandible developing around the lobe of the submandibular salivary gland during embryonic life. Stafne bone cavity is a rare abnormality, named after edward stafne, who first described the lesion in 1942.
The oral and maxillofacial surgeon requested that panoramic xrays be taken every 3 years to monitor. The differential diagnosis of a pseudocyst may become more difficult when adjacent processes are present. They are generally asymptomatic and incidental lesion findings may be diagnosed during a radiographic examination. 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 radiologic techniques. Considering most of the cases, stafne cavity is diagnosed incidentally. Stafne s bone cavity was an incidental finding, presenting no progressive changes. Several terms have been used to describe this entity, like stafne static bone defect, stafne cyst, static bone cyst, stafne cavity, latent bone cyst, static bone cavity, lingual mandibular bone depression and idiopathic bone cavity 24,7,10. Stafne bony defect was first described by stafne in 1942. Anterior location of stafne bone cavity is a unusual developmental anomaly and only 66 cases reported in the english literature. Because of the radiograph diagnosis, a biopsy was not indicated. After completing this article, the reader should have an improved ability to characterize cystic and cysticappearing lesions of the mandible. Stafnes cyst defined as static lesions located in the angle of mandible.
They call it lingual salivary gland depression very descriptive then discuss all the other names in the text. 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. Stafne bone defect of the molar region 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. Despite this, the patient was referred to an oral and maxillofacial surgeon for evaluation by cone beam computed tomography. Stafne bone defect in the anterior mandible bir publications. Stafne bone defect sbt or stafne bone cyst sbc also known as lingual mandibular bone defect of the mandible is an invagination in the medial surface of the mandible, usually in the third molar angle area. A diagnosis of stafne bone cavity was made, and no further therapy was instituted. 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. Stafne bone cyst, stafne bone cavity, static bone cavity, latent bone cyst, developmental bone defect. A stafne cyst is a cortical defect near the angle of the mandible below the inferior alveolar canal. Stafne bone cyst definition of stafne bone cyst by medical. During facial bone computed tomography ct for facial area evaluation, a well shaped cystic lesion was accidentally detected on the right side of.
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