scholarly journals Unusual Imaging Features of Dentigerous Cyst: A Case Report

2019 ◽  
Vol 7 (3) ◽  
pp. 76 ◽  
Author(s):  
Carla Patrícia Martinelli-Kläy ◽  
Celso Ricardo Martinelli ◽  
Celso Martinelli ◽  
Henrique Roberto Macedo ◽  
Tommaso Lombardi
Keyword(s):  
Attenuation Coefficient ◽  
Panoramic Radiography ◽  
Histopathological Examination ◽  
Dentigerous Cyst ◽  
Radiographic Feature ◽  
Histopathological Analysis ◽  
Imaging Features ◽  
Impacted Tooth ◽  
Second Molar ◽  
Dentigerous Cysts

Dentigerous cysts (DC) are cystic lesions radiographically represented by a well-defined unilocular radiolucent area involving an impacted tooth crown. We present an unusual radiographic feature of dentigerous cyst related to the impacted mandibular right second molar, in a 16-year-old patient, which suggested an ameloblastoma or odontogenic keratocyst (OKC) because of its multilocular appearance seen on the panoramic radiography. A multi-slice computed tomography (MSCT), however, revealed a unilocular lesion without septations, with an attenuation coefficient from 3.9 to 22.9 HU suggesting a cystic lesion. Due to its extension, a marsupialization was performed together with the histopathological analysis of the fragment removed which suggested a dentigerous cyst. Nine months later, the lesion was reduced in size and then totally excised. The impacted mandibular right second molar was also extracted. Histopathological examination confirmed the diagnosis of a dentigerous cyst. One year later, the panoramic radiography showed a complete mandible bone healing. Large dentigerous cysts can sometimes suggest other more aggressive pathologies. Precise diagnosis is important to avoid mistakes since DC, OKC and ameloblastoma require different treatments. Histological examination is, therefore, essential to establish a definitive diagnosis. In our case, MSCT and the tissue attenuation coefficient analysis contributed to guide the diagnosis and management of the dentigerous cyst.

scholarly journals Lung biopsy with guillotine cutting needle and biopsy forceps though transdiaphragmatic thoracoscopy in dogs with pulmonary alterations

2018 ◽  
Vol 38 (11) ◽  
pp. 2117-2123
Author(s):  
Letícia M. Fratini ◽  
Cristiano Gomes ◽  
Luciana Queiroga ◽  
Fabiane R. Santos ◽  
Alexandra P. Fantinatti ◽  
...  
Keyword(s):  
Lung Biopsy ◽  
Histopathological Examination ◽  
Perioperative Complications ◽  
Screening Tests ◽  
Histopathological Analysis ◽  
Imaging Features ◽  
Biopsy Forceps ◽  
Pathology Laboratory ◽  
Cutting Needle ◽  
Guillotine Cutting

ABSTRACT: Lung diseases are common in small animal clinical routine. Diagnosis is usually affected due to nonspecific symptoms. Imaging features such as radiography and chest ultrasound are acceptable screening tests, although lung biopsy can provides a precise diagnosis. Thus thoracoscopy provides a minimally invasive diagnostic assessment for chest diseases and offers the benefits such as improved illumination and magnification of the image when compared with thoracotomy. In this study we evaluated the transdiaphragmatic thoracoscopic-assisted techniques of lung biopsy with a the guillotine cutting needle and biopsy forceps, in dogs presenting radiographic suspicion on pulmonary tumors. Fourteen dogs regardless of breed, gender, age and body weight admitted at the Hospital of Veterinary Clinics (HCV) of the Veterinary College (FAVET) of Universidade Federal do Rio Grande do Sul (UFRGS), were assessed. Inclusion criteria were presence of nodules on chest radiography and triage tests without changes that could hinder general anesthesia and surgical approach. The animals were positioned in dorsal recumbence and two thoracoscopic ports were established: the first port for working instruments; the second paraxyphoid port for the telescope. Three samples were collected using each sampling method from each lesion or from tumors macroscopically similar whenever their size was less than one centimeter. The samples were sent for histopathological examination in the Veterinary Pathology Laboratory of FAVET/UFRGS. Surgical time was recorded from first incision to wound closure and surgical complications were reported. The dogs were evaluated for the presence of subcutaneous emphysema, hematoma, seroma, local infection and dehiscence. No conversion to open surgery was necessary during the thoracoscopic procedure in any patient. Thoracoscopic assisted biopsy using guillotine needle and biopsy forceps was a safe and fast technique, without perioperative complications. Both devices provided good quality samples for histopathological analysis of lung abnormalities. However the cutting guillotine needle was more efficient especially in larger pulmonary nodules. The transdiaphragmatic access provided optimal approach for both hemithoraces.

scholarly journals Conservative surgical-orthodontic treatment of a young patient with a dentigerous cyst

2013 ◽  
Vol 42 (5) ◽  
pp. 389-392
Author(s):  
Marina Lara De Carli ◽  
Fernanda Rafaelly De Oliveira Pedreira ◽  
Eduardo Pereira Guimarães ◽  
Nayara Nery De Oliveira Dias ◽  
Alessandro Antônio Costa Pereira ◽  
...  
Keyword(s):  
Case Report ◽  
Orthodontic Treatment ◽  
Dentigerous Cyst ◽  
Young Patients ◽  
Acrylic Resin ◽  
Lesion Size ◽  
Impacted Tooth ◽  
Fixed Appliance ◽  
Second Molar ◽  
Cystic Cavity

INTRODUCTION: The dentigerous cyst is a developmental odontogenic cyst, whose therapeutic approach depends on the size of the lesion. This paper describes the treatment performed on a 14-year-old male patient who presented with a large dentigerous cyst on the permanent mandibular left second molar. CASE REPORT: The permanent mandibular left first molar was extracted, and the lesion was decompressed and marsupialized by excision of the overlying mucosa, opening a window into the cystic cavity and suturing an acrylic resin drain to the oral mucosa. The specimen removed during surgery confirmed the diagnosis of a dentigerous cyst. Within ninety days of surgery, there was a significant reduction in lesion size. Orthodontic treatment was then started, and included traction of the impacted tooth and opening of adequate space with a fixed appliance, providing favorable tooth alignment and leveling. CONCLUSION: Marsupialization and orthodontic traction should be considered when planning the treatment of a dentigerous cyst, mainly in young patients with large lesions, to avoid damage to the surrounding structures.

scholarly journals MASSIVE DENTIGEROUS CYST INVOLVING THE ENTIRE RIGHT MAXILLA - A CASE REPORT

2019 ◽  
pp. 1-2
Author(s):  
K. S Manjunath
Keyword(s):  
Case Report ◽  
Dentigerous Cyst ◽  
Odontogenic Cyst ◽  
Odontogenic Cysts ◽  
Radicular Cyst ◽  
Impacted Tooth ◽  
Unerupted Tooth ◽  
Dentigerous Cysts ◽  
Enamel Epithelium ◽  
Reduced Enamel Epithelium

The Dentigerous cysts are odontogenic cysts which originates from reduced enamel epithelium in an unerupted tooth or it encloses the crown of an unerupted or impacted tooth at cementoenamel junction, it is estimated to about 20% of all epithelium lined cysts and 2nd most common odontogenic cyst after radicular cyst. Here is a case report of dentigerous cyst of right maxilla which has been discussed below.

scholarly journals Deep learning neural networks to differentiate Stafne’s bone cavity from pathological radiolucent lesions of the mandible in heterogeneous panoramic radiography

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254997
Author(s):  
Ari Lee ◽  
Min Su Kim ◽  
Sang-Sun Han ◽  
PooGyeon Park ◽  
Chena Lee ◽  
...  
Keyword(s):  
Deep Learning ◽  
High Performance ◽  
Imaging System ◽  
Panoramic Radiography ◽  
Learning Algorithm ◽  
Odontogenic Cysts ◽  
Surgical Removal ◽  
Imaging Features ◽  
Deep Learning Algorithm ◽  
Dentigerous Cysts

This study aimed to develop a high-performance deep learning algorithm to differentiate Stafne’s bone cavity (SBC) from cysts and tumors of the jaw based on images acquired from various panoramic radiographic systems. Data sets included 176 Stafne’s bone cavities and 282 odontogenic cysts and tumors of the mandible (98 dentigerous cysts, 91 odontogenic keratocysts, and 93 ameloblastomas) that required surgical removal. Panoramic radiographs were obtained using three different imaging systems. The trained model showed 99.25% accuracy, 98.08% sensitivity, and 100% specificity for SBC classification and resulted in one misclassified SBC case. The algorithm was approved to recognize the typical imaging features of SBC in panoramic radiography regardless of the imaging system when traced back with Grad-Cam and Guided Grad-Cam methods. The deep learning model for SBC differentiating from odontogenic cysts and tumors showed high performance with images obtained from multiple panoramic systems. The present algorithm is expected to be a useful tool for clinicians, as it diagnoses SBCs in panoramic radiography to prevent unnecessary examinations for patients. Additionally, it would provide support for clinicians to determine further examinations or referrals to surgeons for cases where even experts are unsure of diagnosis using panoramic radiography alone.

scholarly journals Decompression procedure as a successful initial approach to large maxillary dentigerous cyst in 12- year-old boy - a case report

2021 ◽  
pp. 105-105
Author(s):  
Momir Stevanovic ◽  
Sanja Vujovic ◽  
Rasa Mladenovic ◽  
Mirko Mikic ◽  
Miroslav Vasovic
Keyword(s):  
Case Report ◽  
Effective Treatment ◽  
Initial Treatment ◽  
Orthodontic Treatment ◽  
Histopathological Examination ◽  
Dentigerous Cyst ◽  
Definitive Diagnosis ◽  
Impacted Tooth ◽  
Younger Patients ◽  
Decompression Procedure

Introduction. A dentigerous cyst is a pathological lesion associated with the crown of the unerupted or impacted tooth. Decompression is proposed as the initial treatment for large cysts, especially in younger patients. The aim of this article was to present clinical, radiological, histopathological, and therapeutical aspects of the large dentigerous cyst in the maxilla. Case report. A 12-year-old boy with a large dentigerous cyst in the maxilla was referred to our clinic. A dentigerous cyst was associated with the crown of the unerupted maxillary left canine. Management of the cyst included initial decompression with biopsy, followed by secondary enucleation after 9 months and orthodontic treatment. Histopathological examination confirmed the definitive diagnosis of the dentigerous cyst. Conclusion. Initial decompression with a subsequent enucleation proved to be an effective treatment choice for the large dentigerous cyst.

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

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
S. Buchholzer ◽  
Fabien Bornert ◽  
D. Di Donna ◽  
T. Lombardi
Keyword(s):  
Panoramic Radiography ◽  
Third Molar ◽  
Molar Tooth ◽  
Histopathological Analysis ◽  
Histopathological Diagnosis ◽  
X Rays ◽  
Canine Tooth ◽  
Impacted Tooth ◽  
Lateral Periodontal Cyst

Abstract 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. The aim of this article was to report two cases of atypical LPC associated either with an impacted lower left canine (tooth #33) or with a lower right third molar (tooth #48). Case presentation Case 1: A 56-year-old man was referred to us for an oro-dental assessment. Panoramic radiography revealed an impacted lower left permanent canine (tooth #33) with well-defined radiolucency on its upper cervical margin. A CT scan revealed a pericoronal radiolucency of 5 mm at its widest diameter around the impacted tooth #33. The pericoronal tissue was removed and sent for histopathological examination. The results revealed a lateral periodontal cyst. Satisfactory postoperative healing was achieved at the site. Follow-up at 12 months indicated no recurrence of the lesion. Case 2: A 54-year-old woman consulted with the main issue being pain on the lower right side of the face. Intra-oral examination revealed a vestibular swelling involving the region of the second molar (tooth #47), with obliteration of buccal sulcus. Pocket depth was determined to be 9 mm at the distal of #47. A diagnosis of gingival abscess resulting from chronic periodontitis was made. Panoramic radiography revealed a radiolucent cystic lesion associated with an impacted horizontal lower right third molar (tooth #48), suggestive of a dentigerous cyst. X-rays also revealed alveolar bone resorption on the molar (tooth #47). The cyst was removed along with the third molar and submitted for histopathological diagnosis. The diagnosis was LPC. Follow-up at 18 months indicated no recurrence of the lesion. Conclusion These cases represent atypical presentations of LPC. They provide examples of the differential diagnosis of pericoronal radiolucencies involving an impacted tooth and our observations provide insights regarding the pathogenesis of LPC.

scholarly journals Dentigerous cyst arising from a denticle in a primary teeth- a rare case report with brief review of literature

2021 ◽  
Author(s):  
Jimsha Kumaran ◽  
Jonathan Mariappan
Keyword(s):  
Primary Teeth ◽  
Dentigerous Cyst ◽  
Odontogenic Cysts ◽  
Review Of Literature ◽  
Impacted Tooth ◽  
Odontogenic Epithelium ◽  
Dentigerous Cysts ◽  
Rare Case Report ◽  
Enamel Epithelium ◽  
Reduced Enamel Epithelium

Odontogenic cysts are derived from odontogenic epithelium which may develop before or after the formation of tooth. Most of these are developmental in origin. While dentigerous cysts are common odontogenic cysts that are related to the crown of the impacted tooth and known to arise from reduced enamel epithelium.

Massive Dentigerous Cyst within the Anterior Part of The Mandible: A Case Report

2021 ◽  
pp. 39-44
Author(s):  
Rema Hwas ◽  
Mohamed Rohuma ◽  
Faten Bshena
Keyword(s):  
Standard Treatment ◽  
Anterior Part ◽  
Dentigerous Cyst ◽  
Radiographic Examination ◽  
Third Molars ◽  
Impacted Tooth ◽  
Jaw Cysts ◽  
Unerupted Tooth ◽  
Dentigerous Cysts ◽  
Bone Expansion

Dentigerous cysts are the most common developmental odontogenic jaw cysts, associated with crowns of an Unerupted tooth. Usually, they occur in the second and third decade of life with a male predilection. They are frequently asymptomatic and mostly discovered incidentally on routine dental radiographic examination. Its growth is slow, and can reach a considerable size causing bone expansion and displacement of teeth. Mandibular lower third molars are the most frequently effected teeth; dentigerous cysts involving impacted mandibular canines are rarely reported. Surgical enucleation with extraction of the associated tooth is the standard treatment for dentigerous cyst, marsupialization is recommended for large lesions. We report a rare case of a large dentigerous cyst in a 62-year-old male patient, associated with impacted left mandibular canine, extending from the retro-molar area of left side crossing the midline to the 2nd premolar in the other side, that was successfully treated by marsupialization followed by enucleation and removal of the impacted tooth.

scholarly journals Computed tomographic imaging and surgical treatment of an acquired dentigerous cyst in a Slovakian Chuvach – a case report

2020 ◽  
Vol 89 (3) ◽  
pp. 263-267
Author(s):  
Jana Václavíková ◽  
Cedric Tutt ◽  
Tomáš Fichtel ◽  
Petr Raušer ◽  
Ladislav Stehlík ◽  
...  
Keyword(s):  
Clinical Case ◽  
Histopathological Examination ◽  
Dentigerous Cyst ◽  
Computed Tomographic ◽  
Dentigerous Cysts ◽  
Facial Area ◽  
Mandibular First Premolar ◽  
Suspected Diagnosis

Dentigerous cysts occur infrequently in dogs and they should be a primary consideration in young dogs presented with oral swelling in the edentulous area. They are even less common in cats compared to dogs. Classification of lesions in animals is not very different from those described in humans. Dentigerous cysts are most frequently seen affecting the mandibular first premolar area with unerupted mandibular first premolar teeth. This report describes the clinical case of a four-year-old female Slovakian Chuvach that suffered from long-term difficulties associated with epistaxis and swelling of the facial area. Computed tomography revealed a cyst-like structure associated with an intra-nasal canine, prompting the suspected diagnosis of an odontogenic cyst. Histopathological examination of tissues obtained during the subsequent surgical procedure confirmed the diagnosis of a dentigerous cyst.

scholarly journals Case report: Dentigerous Cyst and Canine Impaction at the Orbital Floor

2019 ◽  
Vol 55 (3) ◽  
pp. 234
Author(s):  
Ferdian Rizky Hutomo ◽  
Ellen Satya Pratiwi ◽  
Viskasari P Kalanjati ◽  
Andra Rizqiawan
Keyword(s):  
Case Report ◽  
Dentigerous Cyst ◽  
Orbital Floor ◽  
Radiographic Examination ◽  
Epithelial Lining ◽  
Impacted Tooth ◽  
Eye Muscle ◽  
Dentigerous Cysts ◽  
Impacted Canine ◽  
Unerupted Teeth

Dentigerous cysts are cysts of the epithelial lining of the jaws derived from the dental follicle of unerupted teeth. These cysts are often found during routine radiographic examination along with unerupted teeth. Dentigerous cysts are usually asymptomatic unless the size becomes large, thus causing swelling. This case report describes the management of dentigerous cyst in the upper left canine region with canine impaction to the orbital floor. Dentigerous cyst was treated with cyst enucleation but the impacted canine was not taken because of the magnitude of risk that can occur which was a disruption to the eye muscle. Conclusion. Treatment of dentigerous cysts can be performed by enucleation technique and management related the impacted tooth at the orbital floor needs a further evaluation consideration.

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