6,640 results match your criteria Simple Bone Cyst Imaging

TREM2 Variants as A Possible Cause of Frontotemporal Dementia with Distinct Neuroimaging Features.

Eur J Neurol 2021 May 9. Epub 2021 May 9.

Behavioral Neurology and Movement Disorders Unit, Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.

Background: Nasu-Hakola disease (NHD) is a rare, autosomal recessive disorder characterized by skeletal and neurological symptoms. Behavioral symptoms with cognitive impairment may mimic the behavioral variant of frontotemporal dementia (bvFTD) and other early-onset dementias. We analyzed our patients and reviewed the literature to delineate neurological and neuroimaging findings suggestive of NHD. Read More

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Bone marrow lesions: etiology and pathogenesis at the hip.

J Hip Preserv Surg 2020 Aug 7;7(3):401-409. Epub 2020 Dec 7.

Department of Orthopaedics, The Ohio State University, Jameson Crane Sports Medicine Research Institute, Columbus, OH, USA.

Bone marrow lesions (BML) are painful changes in subchondral bone which can be reliably identified on magnetic resonance imaging and have been identified in patients suffering from hip osteoarthritis (OA) and related conditions. Created via repetitive microdamage at the articular surface and dysregulated subchondral healing, BML have been linked to traumatic, inflammatory, degenerative, metabolic and neoplastic processes. While BML are known to be a common pathology throughout the body, BML at the hip have not been extensively studied in comparison to those at the knee. Read More

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Imaging of Non-ossifying Fibromas: A Case Series.

Cureus 2021 Mar 25;13(3):e14102. Epub 2021 Mar 25.

Trauma and Orthopaedics, Addenbrooke's Hospital, Cambridge University Hospitals National Health Service Foundation Trust, Cambridge, GBR.

Non-ossifying fibromas (NOFs) are common lesions most frequently found in the growing bones of children and adolescents. Although NOFs are benign, their presence as incidental findings often triggers further investigation as they are sometimes mistaken for more sinister bone lesions such as aneurysmal bone cysts. NOFs can also pose an increased risk of pathological fractures. Read More

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Differential diagnosis between calcifying odontogenic cyst and adenomatoid odontogenic tumor by computed tomography images.

Oral Radiol 2021 Apr 27. Epub 2021 Apr 27.

Department of Oral and Maxillofacial Radiology and Diagnosis, School of Dental Medicine, Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, Kanagawa, 230-8501, Japan.

Objectives: Calcifying odontogenic cysts (COC) and adenomatoid odontogenic tumors (AOT) have similar radiographic findings. We examined the radiographic and computed tomography (CT) images of patients histologically diagnosed with COC or AOT and identified their characteristic findings.

Methods: The subjects included 12 patients histologically diagnosed with COC or AOT (one female and five males per group), who underwent CT at our hospital between Nov 1998 and Jun 2019. Read More

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Socket preservation or guided bone regeneration - a case report.

Pol Merkur Lekarski 2021 Apr;49(290):153-157

3Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Italy.

The greatest challenge of modern implantology is the loss of bone tissue in esthetic region of maxilla and mandible. Significant bone changes caused for example by cysts, unerupted teeth or traumatic extraction often provoke bilateral or trilateral bone defects. Thanks to the possibility of applying demineralized dentin and dentin blocks gained from extracted teeth of the patient, it is possible to successfully regenerate bone tissue especially in the esthetic zone. Read More

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Ghost cell odontogenic carcinoma of the left maxilla.

BMJ Case Rep 2021 Apr 22;14(4). Epub 2021 Apr 22.

Radiology Department, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisboa, Portugal

We report the case of a 25-year-old man with a maxillary ghost cell odontogenic carcinoma (GCOC). The patient presented to the maxillofacial and head and neck surgery clinic with a growing lump in the left maxilla. Initial workup with CT revealed a cystic lesion in the left upper jaw with associated bone erosion and an enhancing soft-tissue component. Read More

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Dental and maxillomandibular incidental findings in panoramic radiography among individuals with mucopolysaccharidosis: a cross-sectional study.

J Appl Oral Sci 2021 14;29:e20200978. Epub 2021 Apr 14.

Universidade Federal de Minas Gerais, Faculdade de Odontologia, Departamento de Odontologia Social e Preventiva, Belo Horizonte, Brasil.

Mucopolysaccharidosis (MPS) is a group of rare and inherited metabolic disorders caused by the accumulation of macromolecule glycosaminoglycans inside lysosomes. Affected individuals may have dental and craniofacial tissue alterations, facilitating the development of several oral diseases.

Objectives: To assess, with panoramic radiographic images, the frequency of dental and maxillomandibular incidental findings among MPS individuals and compare them with non-MPS individuals. Read More

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[Three-dimentional radiographic features of 67 maxillary radicular cysts].

Beijing Da Xue Xue Bao Yi Xue Ban 2021 Mar;53(2):396-401

Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.

Objective: To analyze the three-dimensional radiographic characteristics of maxillary radi-cular cysts using cone-beam computed tomography (CBCT) and spiral CT.

Methods: Clinical records, histopathological reports, and CBCT or non-enhanced spiral CT images of 67 consecutive patients with maxillary radicular cysts were retrospectively acquired, and radiographic features, including size, shape, expansion, internal structure and relationship with the surrounding tissues, were analyzed. The lesions were divided into three types according to the involved tooth number, as follows: type Ⅰ (single tooth), the epicenter of the cyst was located at the apex of a nonvital tooth, without involvement of the neighbo-ring tooth; type Ⅱ (adjacent tooth involvement), the cyst was located at the apex of a nonvital tooth with involvement of the mesial and/or distal tooth root; and type Ⅲ (multi-teeth), the cyst involved the apexes of ≥4 teeth. Read More

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Role of diffusion-weighted MRI in differentiating between benign and malignant bone lesions: a prospective study.

Clin Radiol 2021 Apr 14. Epub 2021 Apr 14.

Radio-diagnosis Department, Faculty of Medicine, South Valley University, Qena, Egypt.

Aim: To evaluate the ability of diffusion-weighted magnetic resonance imaging (DW-MRI) to differentiate between benign and malignant bony tumours.

Materials And Methods: This prospective study was conducted from October, 2018 to December, 2019. The study included 62 patients (37 male and 25 female) with clinically suspected bony lesions referred to the Radiology Department. Read More

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Precocious pseudo-puberty in a 2-year-old girl, presenting with bilateral ovarian enlargement and progressing to unilateral juvenile granulosa cell tumour.

J Clin Res Pediatr Endocrinol 2021 Apr 14. Epub 2021 Apr 14.

Glasgow University School of Medicine, Glasgow, United Kingdom.

Ovarian causes of precocious pseudo-puberty (PPP) include McCune-Albright syndrome (MAS) and juvenile granulosa cell tumour (JGCT). We describe a case of PPP in which bilateral ovarian enlargement with multiple cysts progressed to unilateral JGCT. A girl aged 2. Read More

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Imaging features of Stafne bone defects on computed tomography: An assessment of 40 cases.

Imaging Sci Dent 2021 Mar 29;51(1):81-86. Epub 2021 Jan 29.

Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil.

Purpose: This study was performed to assess and describe the imaging features of 40 cases of Stafne bone defects (SBDs) on computed tomographic (CT) examinations.

Materials And Methods: This study collected data, including age and sex, from 40 patients with SBDs who underwent CT exams. The imaging features of the SBDs were assessed in terms of their location, average size, the relationship of their contour with the cortical plate of the lingual mandible, bone margins, degree of internal density, shape, topographic relationship between the defect and the mandibular edge, the distance from the SBD to the base of the mandible, and the Ariji classification (type I, II, and III). Read More

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Extended-Hours Hemodialysis without Dietary Restrictions Is Associated with Lower Risk for Developing of Dialysis-Related Amyloidosis.

Tohoku J Exp Med 2021 04;253(4):241-248

Department of Nephrology, Kamome Clinic.

Dialysis-related amyloidosis (DRA) is characterized by the deposition of amyloid consisting of beta2-microglobulin in the musculoskeletal system, causing carpal tunnel syndrome, destructive spondyloarthropathy, and/or bone cysts. Increased cystic radiolucency of the bones and tendon thickening due to inflammation are common findings in DRA. We have developed a new dialysis method, extended-hours hemodialysis without dietary restrictions for the aim of improving both hypertension and malnutrition. Read More

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Atypical presentation of lateral periodontal cyst associated with impacted teeth: two case reports.

BMC Oral Health 2021 04 7;21(1):178. Epub 2021 Apr 7.

Oral Medicine and Maxillofacial Pathology Unit, Division of Oral and Maxillofacial Surgery, Department of Surgery, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland.

Background: Lateral periodontal cyst (LPC) is an uncommon form of developmental odontogenic cyst. LPC can be suspected when there is a round, well-circumscribed radiolucency, usually of small diameter, along the lateral surface of vital erupted teeth, predominantly in the mandibular premolar region. Histopathological analysis allows LPC to be diagnosed based on its characteristic features such as a thin cuboidal to stratified squamous non-keratinizing epithelium containing epithelial plaques and glycogen-rich clear cells. Read More

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Comparative efficacy and safety profile for the treatment of humeral bone cysts in children: curettage and mixed bone grafting either with or without elastic intramedullary nailing.

J Orthop Surg Res 2021 Apr 6;16(1):241. Epub 2021 Apr 6.

Department of Pediatric Orthopedics, The Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, China.

Purpose: The primary aim of our study was to evaluate the comparative efficacy and safety profile of curettage and mixed bone grafting without instrument or with elastic intramedullary nailing in the treatment of humeral bone cyst in children.

Methods: Our retrospective study included a total of 48 children harboring humeral bone cyst in our hospital from August 2012 to February 2019. The patients enrolled were divided into elastic nailing group with the application of elastic intramedullary nailing (n = 25) and control group without using instrument (n = 23) during the management of curettage and mixed bone grafting. Read More

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Intradiploic epidermoid cysts - a series of three cases and our experience with literature data.

Rom J Morphol Embryol 2020 Jul-Sep;61(3):889-894

Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, Romania;

Intracranial epidermoid cysts are rare, representing almost 1% of all primary tumors and when are located in the diploe result from entrapped ectodermal embryonic remnants. Because of frequent complications, imaging studies are mandatory for highlighting erosions of both outer and inner table of the calvaria and treatment preparation. We enlisted three female patients within our study, comparing imaging with histopathology aspects. Read More

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A Case of Birt-Hogg-Dubé Syndrome with Renal Cancer Treated as Multiple Metastases of Cancer of Unknown Primary.

Intern Med 2021 Apr 5. Epub 2021 Apr 5.

Department of Diagnostic Radiology, Osaka Medical College, Japan.

A 60-year-old woman presented with multiple lung and bone metastases with unknown primary cancer. Chest CT images showed multiple pulmonary cysts, predominantly of the middle and lower lobes. She also had a history of pneumothorax. Read More

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Impact of Secondary Aneurysmal Bone Cysts on Survival of Patients with Enneking Stage IIB Extremity Osteosarcoma: A Propensity Score Matching Analysis.

Ann Surg Oncol 2021 Apr 2. Epub 2021 Apr 2.

Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.

Background: The clinicopathology of aneurysmal bone cysts (ABCs) secondary to osteosarcoma has not yet been reported. We conduct a retrospective review of ABCs secondary to osteosarcoma to characterize clinicopathology and influence on the survival of patients with Enneking stage IIB extremity osteosarcoma.

Patients And Methods: A total of 300 patients with Enneking stage IIB extremity osteosarcoma were eligible for analysis. Read More

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Developmental Cysts of the Orbit With Mixed Conjunctival and Cutaneous Epithelial Phenotypes.

Ophthalmic Plast Reconstr Surg 2021 Mar 31. Epub 2021 Mar 31.

Orbital Service, Moorfields Eye Hospital, London, United Kingdom Department of Histopathology, Institute of Ophthalmology, London, United Kingdom.

Aim: To describe the characteristics of patients presenting with congenital orbital cysts containing epithelia of both cutaneous phenotype-that is, epidermis with or without keratin, and at least one dermal structure (sweat gland or pilosebaceous unit)-and conjunctival phenotype (with goblet cells); these cysts with mixed lining are termed "dermo-conjunctival" cysts.

Patients And Methods: Review of clinical records for patients having dermo-conjunctival cysts that were treated between 1997 and 2017; patients with cysts of solely conjunctival or solely cutaneous origin were omitted. Data recorded included gender, age at presentation, laterality, orbital location, ophthalmic features, surgical and radiological data, and light microscopic findings. Read More

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Endoscopic assisted removal - An aesthetic approach to impacted third molar tooth in the orbital floor.

Indian J Dent Res 2020 Nov-Dec;31(6):983-986

Department of ENT, Grant Government Medical College, Mumbai, Maharashtra, India.

A third molar displaced in the orbital floor is a very rare sighting. The usual surgical approach to such a case is the Caldwell Luc procedure that has its own complications. Here in this article, we present a 17-year-old male patient with third molar displaced in the orbital floor with egg shell thin anterior wall. Read More

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Multiple odontogenic keratocysts in Ehlers-Danlos syndrome: a rare case report.

BMC Oral Health 2021 03 9;21(1):107. Epub 2021 Mar 9.

Division of Radiotherapy, IEO European Institute of Oncology, IRCCS, 435 Ripamonti Street, 20-141, Milan, Italy.

Background: An odontogenic keratocyst is a lesion characterized by aggressive and infiltrative growth. The lesion is characterized by the existence of satellite microcysts (microtumours) and frequent recurrence (up to 30%). Ehlers-Danlos syndrome is a condition in which collagen production or its post-translational modifications are affected. Read More

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18F-FDG PET/CT imaging features of patients with multicentric Castleman disease.

Nucl Med Commun 2021 Mar 18. Epub 2021 Mar 18.

Department of Nuclear Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China.

Objective: The aim of this study is to investigate the role of 18F-fluorodeoxyglucose (FDG) PET/computed tomography (CT) in the evaluation of multicentric Castleman disease (MCD).

Methods: Thirty-five patients with pathologically confirmed MCD who underwent 18F-FDG PET/CT were retrospectively included. The FDG uptake and CT findings of lymph nodes, pulmonary involvement, spleen, and bone marrow were assessed and the maximum standardized uptake value (SUVmax) of each lesion was measured. Read More

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Aesthetic Reconstruction After Removal of Huge Epidermal Cyst Involving the Calvarium and Dura on the Scalp.

J Craniofac Surg 2021 Mar-Apr 01;32(2):591-593

Department of Plastic and Reconstructive Surgery.

Abstract: Epidermal or epidermoid cysts are one of the most frequent benign masses at the subepidermal level. They are typically smooth, movable, and fluctuant masses covered with stratified squamous epithelium. They rarely grow to a huge size, and only a few cases have been reported. Read More

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Isolated primary spinal epidural hydatid cyst in a child with progressive paraparesis.

Childs Nerv Syst 2021 Mar 8. Epub 2021 Mar 8.

Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran.

Background: Primary spinal hydatid cyst is a rare but serious condition which occurs in about 1% of patients with hydatid disease. This disease may result in severe spinal cord compression presenting with various neurological deficits.

Case Report: A 3-year-old boy was referred to our center with progressive weakness of lower limbs, frequency, and urinary incontinence. Read More

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[Osteochondral lesions of the talus : Individualized approach based on established and innovative reconstruction techniques].

Unfallchirurg 2021 Apr 5;124(4):319-332. Epub 2021 Mar 5.

Klinik für Unfall- und Wiederherstellungschirurgie, Universitätsklinikum der RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Deutschland.

Osteochondral lesions (OCL) of the talus are defined as chondral damage with subchondral involvement. The traumatic etiology is important; in particular, sprains and fractures can lead to lesions of the articular surface and the subchondral plate. As a result, unstable lesions and subchondral cysts can trigger substantial persistent pain and functional impairments. Read More

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Multiple Intraosseous Lipomatosis - A Case Report and a Review of the Literature.

In Vivo 2021 Mar-Apr;35(2):959-964

Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria.

Background: Intraosseous lipomatosis is a rare and uncommon entity with only a few cases reported in the literature.

Case Report: We report a severe case where post-traumatic radiographs showed multiple cystic osseous lesions and a pathological fracture. The findings were expanded with whole-body magnetic resonance imaging (MRI), which showed multiple osseous lesions with typical MRI characteristics of intraosseous lipomas. Read More

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December 2020

Precise locating and cutting of the bone lid with a digital template during the treatment of large mandibular cysts: A case series study.

J Craniomaxillofac Surg 2021 May 5;49(5):358-361. Epub 2021 Feb 5.

State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China. Electronic address:

The aim of the study was to investigate the efficacy and safety of a digital template in the bone lid technique during enucleation of large mandibular cysts. Six patients were enrolled in this study. Patients' preoperative CT data were collected to design and produce the digital templates. Read More

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Unique case of glandular odontogenic cyst showing mucoepidermoid carcinoma-like islands in cystic wall.

BMJ Case Rep 2021 Feb 9;14(2). Epub 2021 Feb 9.

Department of Oral and Maxillofacial Surgery, All India Institute of Medical Sciences, New Delhi, India.

Glandular odontogenic cyst (GOC) is a very rare jaw cyst accounting for 0.2% of all odontogenic cysts. It presents usually in adults with a slight male predominance. Read More

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February 2021

[Diaphyseal and metaphyseal femoral fractures in childhood].

Chirurg 2021 May 2;92(5):485-496. Epub 2021 Feb 2.

Kinderchirurgische Klinik, Städtisches Klinikum Karlsruhe gGmbH, Moltkestraße 90, 76133, Karlsruhe, Deutschland.

Femoral fractures in childhood are rare and are usually the result of severe trauma. Conservative treatment (overhead extension, hip spica cast) can be used in children up to 3 years of age and beyond that elastic stable intramedullary nailing (ESIN) is the method of choice. The prognosis is very good if the surgical technique is adequate. Read More

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Management of a Large Dentigerous Cyst in the Mixed Dentition.

J Clin Orthod 2020 Nov;54(11):1-10

Department of Systems Medicine, University of Rome "Tor Vergata," Rome, Italy.

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November 2020

Retrospective evaluation of cone-beam computed tomography findings of odontogenic cysts in children and adolescents.

B Yilmaz E D Yalcin

Niger J Clin Pract 2021 Jan;24(1):93-99

Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkey.

Background: Odontogenic cysts develop from the epithelium of dental structures and generally grow slowly. In children and adolescents, cysts usually grow faster than adults and require much knowledge for diagnoses and treatments.

Aims: This study aimed to determine the diagnosis and treatment of odontogenic cysts in different age groups by evaluating the type of lesions, age, gender, and anatomical distribution of odontogenic cysts seen in children and adolescents by cone-beam computed tomography. Read More

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January 2021