Successful treatment of nasopalatine duct cyst after maxillary anterior implant surgery: a case report.

BACKGROUND: Sporadic studies have reported the occurrence of nasopalatine duct cysts after maxillary anterior implant surgery, and the treatment methods still have clinical uncertainty. PURPOSE: We report a potential therapy method that successfully treated a nasopalatine duct cyst that developed and expanded one year after maxillary anterior implant placement following periodontally hopeless teeth extraction. MATERIALS AND METHODS: The nasopalatine cyst was treated surgically without removing implants. During flap surgery, the cyst was removed intact, and the exposed implant's surface was debrided thoroughly by hydrogen peroxide (H2O2) rinsing, glycine air polishing, and saline rinsing. To deal with the significant bone defect caused by the cyst, a bovine porous bone mineral injected platelet-rich fibrin (BPBM-i-PRF) complex was applied to fill the defect, following a resorbable collagen membrane to cover. RESULTS: 7 years after surgery, no cyst recurrence was observed, and bone regeneration in the bone graft area was stable. The implants functioned well without mobility. CONCLUSIONS: For nasopalatine duct cysts associated with dental implant placement, complete surgical debridement and longitudinal stable bone regeneration are possibly accessible by regenerative surgery without implant removal.

Transoral Marsupialization of an Isolated Surgical Ciliated Cyst of the Infratemporal Fossa.

Surgical ciliated cysts occur primarily in the maxilla after radical maxillary sinus surgery. We report the first case of a surgical ciliated cyst that developed in the infratemporal fossa 25 years after the patient sustained severe facial trauma. The patient complained of mandibular pain and limited mouth opening. The patient's condition was completely resolved 5 months after marsupialization via Le Fort I osteotomy. Surgical morbidities can be minimized by proper diagnosis and less invasive surgery.

Co-existence of Congenital Epidermoid Cyst and Ranula in a Newborn. Report of a Unique Case.

Background: Congenital cystic swellings involving the floor of the mouth include various lesions such as developmental cysts (e.g., dermoid and epidermoid cysts), ranulas, vascular malformations etc. However, coexistence of such conditions, possibly with a cause-and-effect- relationship, is rare. The purpose of this case report is to present a rare case of a congenital epidermoid cyst associated with a mucous retention cyst in a newborn. Methods: A 6-month-old female infant was referred to an Oral Medicine Clinic in Athens, Greece on October 2019 for evaluation of a swelling at the floor of the mouth, first noticed by her paediatrician just after birth. Clinically, a yellowish "pearly" nodule in close association with the orifice of the left submandibular duct, posteriorly transitioning to a diffuse bluish cystic swelling of the left floor of the mouth was observed. With a provisional diagnosis of a dermoid cyst and/or ranula, a surgical excision was performed under general anaesthesia. Results: Histopathologically, a well-defined, keratin-filled, cystic cavity lined by orthokeratinized stratified squamous epithelium was observed in the anterior aspect while posteriorly and in close proximity, a dilated salivary duct lined by cylindrical, cuboidal or pseudostratified epithelium was noted. A final diagnosis of an epidermoid cyst intimately associated with a mucus retention cyst (ranula) of the submandibular duct was rendered. Conclusions: The coexistence of two cystic lesions in the floor of the mouth with features of epidermoid and mucous retention cyst, respectively, is rare and its pathogenesis intriguing, especially in a newborn.

Epidermoid cyst mimicking a thyroglossal duct cyst in a pediatric patient: a case report.

This article presents a case of an epidermoid cyst that mimicked a thyroglossal duct cyst in a pediatric patient. An 8-year-old boy was referred for evaluation of a volumetric increase in the median cervical region with an evolution of about 4 years. The skin in the submental region was healthy and normal colored. Palpation revealed a mobile, well-circumscribed nodular lesion of soft consistency. Computed tomography of the neck showed an expansive hypodense formation extending from the base of the tongue to the upper portion of the hyoid bone, suggesting a thyroglossal duct cyst. Considering the diagnostic hypothesis, cystic enucleation via the Sistrunk procedure was planned. However, no ductal structure was identified during the surgical procedure, and the lesion was only near, but not attached to, the hyoid bone. Simple excision of the lesion was therefore performed. At the most recent follow-up examination, about 3 months postoperatively, the patient demonstrated satisfactory clinical progress. The epidermoid cyst close to the hyoid bone presented diagnostic difficulty due to its similarity to a thyroglossal duct cyst. Computed tomography provides limited information for diagnosing this type of lesion, and ultrasonography is the preferred test. In view of the uncertain diagnosis in this case, the extent of the excision was determined during the surgery, and simple excision was a satisfactory treatment associated with a good prognosis.

Epidermal cyst: a rare case report in a 5-month-old child / Cisto epidérmico: relato de caso raro em criança de 5 meses

ABSTRACT The epidermal cyst is a rare, benign lesion, usually asymptomatic and slowly enlarging, more frequently located in the submandibular region. Its etiology is believed to be associated with the epithelial residual tissues retained in the midline during the closure of the first and second brachial arches, in the third and fourth weeks of intra-uterine life. Its clinical characteristics are of a rubbery consistency to palpation, well defined borders, with the absence of skin appendages within their squamous epithelium lined walls. The final diagnosis is confirmed through histopathological examination with stratified squamous epithelium findings in the cystic fluid lumen or keratin. The treatment is usually surgical and without recurrence and the final diagnosis is confirmed through histopathological examination. This paper aims to present a case report of a congenital epidermal cyst in a 5-month-old female patient located in the mouth floor near the sublingual gland duct. The case was treated with excisional biopsy and after follow-up, there was no recurrence.

RESUMO O cisto epidérmico é um cisto de desenvolvimento, benigno, raro, localizado com maior frequência na região submandibular, geralmente assintomático e de evolução lenta. Acredita-se que a sua etiologia esteja associada aos restos epiteliais retidos na linha média durante o fechamento do primeiro e segundo arcos braquiais, na terceira ou quarta semana de vida intrauterina. Suas características clínicas são de uma consistência borrachóide à palpação, bordas delimitadas e sem apêndices de pele no seu interior. O diagnóstico é confirmado através do exame histopatológico com achados de epitélio escamoso estratificado e no lúmen fluído cístico ou queratina. O tratamento é geralmente cirúrgico e sem recidivas. Este trabalho relata um caso de cisto epidérmico congênito de uma paciente pediátrica, do sexo feminino, de cinco meses de idade e localizado no assoalho de boca próximo ao ducto da glândula sublingual. O caso foi tratado com a enucleação cirúrgica e em seis meses de acompanhamento não apresentou recidiva.

Radiologic prognosis of an idiopathic bone cavity of the mandible in 1-year period

An idiopathic bone cavity (IBC) tends to rise as an abnormality in osseous growth, a degenerating tumoral process, or triggered by hemorrhagic trauma. This paper describes the interpretation of an IBC and its progression over one year. The patient's initial radiographic images showed well-defined multilocular radiolucency located at the right mandibular molar region, extending between the teeth and the mandibular basis. No clinical symptoms were present, and the course of the mandibular canal was not altered. The lesion was not initially biopsied due to the patient's dental anxiety. Over one year, the radiolucent area extended anteriorly and thinned the lingual and buccal cortices. Prior radiolucent areas changed to granular-appearing bone. The diagnosis was based on a fine-needle aspiration biopsy. The appearance of an IBC is not unique; its benign nature should be differentiated from multilocular or fibro-osseous lesions by a careful interpretation of clinical and radiological perspectives.

A modified longitudinal incision via transoral sublabial approach for removal of the nasal vestibular cyst: a clinical observation.

OBJECTIVE: The aim of this study was to investigate the clinical effect of the removal of nasal vestibular cysts through a modified longitudinal incision via a transoral sublabial approach. METHOD: In 28 cases, a nasal vestibular cyst was removed through a modified longitudinal incision via a transoral sublabial approach. A visual analogue scale score was used to evaluate the numbness of the nasal alar and upper lip. Post-operative complications were recorded. Medical photographs were used for assessment. RESULTS: For all patients, incisions reached clinical primary healing one week after surgery. All patients were free of post-operative haematoma, infection, oronasal fistula and malformation. In the first week and the first month after surgery, numbness of the nasal alar and upper lip was recorded in few cases. The patients were followed up for 2-57 months without recurrence. CONCLUSION: Removal of nasal vestibular cysts via a transoral sublabial approach with a modified longitudinal incision is a minimally invasive and simple surgical method with few complications and a quick recovery.

An Unusual Case of a Large Periapical Cyst Mimicking a Nasopalatine Duct Cyst.

This article reports on the management of a large median symmetrical lesion of the anterior palate, which was clinically and radiographically diagnosed as an infected nasopalatine duct cyst. However, histopathology demonstrated it to be a radicular cyst of endodontic origin.

The World Health Organization classification of odontogenic and maxillofacial bone tumors: An appraisal.

Classification is the process of grouping similar entities under one category for the ease of their comprehension and better handling. Medical classification dates back to the days of William Farr who is credited with the development of a nosology, which later served as the forerunner for the modern-day disease classification by ICD. The WHO system of classification is a time-honoured system that has prevailed from decades together and is under constant evolution. The classification of odontogenic tumours was first formulated by Pierre Paul Broca and has undergone several transformations over years. Though the earlier classifications and their modifications by several authors and even by the WHO appeared to be fitting for their time, the latest edition of WHO classification of odontogenic and maxillofacial bone tumours neither seems to be complete nor perfect, even at the present context. It is unfortunate that even with the advancement of molecular biology, the present WHO classification on Odontogenic and Maxillofacial bone tumours, fails to serve as a 'reference standard' in the true sense of the term. This article highlights the limitations of the current classification with constructive criticism that may help in further improvement.

Demographic Profile of Non-Odontogenic Jaw Lesions in an Iranian Population: A 30-Year Archive Review.

OBJECTIVES: The frequency of non-odontogenic lesions of the jawbones is lower than that of odontogenic lesions; however, study of the epidemiologic data of these lesions is required for health care programs. This study aimed to assess the relative frequency and demographic profile of non-odontogenic jaw lesions in an Iranian population over a 30-year period. MATERIALS AND METHODS: This archive review was performed using demographic and biopsy information of all patients with non-odontogenic lesions of the jawbones submitted to the Oral Pathology Department of Dental School of Tehran University of Medical Sciences from 1984 to 2014. Demographic data included in the study were: age at diagnosis, gender and location of lesion. The lesions were divided into three groups of group 1: cystic lesions, group 2: tumors and tumor-like lesions, and group 3: infectious/inflammatory/reactive lesions. Frequency and clinical data were analyzed using SPSS 22. RESULTS: Of 972 non-odontogenic jaw lesions, the ratio of mandibular to maxillary lesions was 1.63:1. Female to male ratio was 1.33:1 and the mean age of patients was 29.09±16.90 years. The most common non-odontogenic jaw lesion was central giant cell granuloma (CGCG). In groups 1, 2 and 3, nasopalatine duct cyst, CGCG, and osteomyelitis were the most frequent lesions, respectively. CONCLUSIONS: Non-odontogenic lesions of the jawbones are a diverse group of lesions with different frequency and behavior. This study demonstrated that tumors and tumor-like lesions of the jaws were more common than cystic and infectious/inflammatory/reactive lesions. Overall, the most common non-odontogenic jaw lesion was CGCG.

A 10-Year Retrospective Analysis of 64 Cases of Cystic Lesions of the Oral and Maxillofacial Region in a Nigerian Tertiary Hospital.

OBJECTIVES: Orofacial cysts are broadly divided into odontogenic and nonodontogenic types, epithelial or non-epithelial, and developmental or inflammatory in origin. The odontogenic cyst is an osseous-destructive lesion that most commonly affects the jaw. It is formed by activation of odontogenic cell rests entrapped within the bone or gingival tissue of the jaws, such as the epithelial remains of Malassez, the dental lamina (cell rests of Serres), or the enamel organ. METHODS: We performed a retrospective study of all histologically diagnosed cysts of the orofacial region seen at the Maxillofacial clinic of the Ahmadu Bello University Teaching Hospital, Nigeria, between January 2003 and December 2012. RESULTS: Over the 10-year study period, 64 cases of cystic lesions of the orofacial region were seen in 1162 pathological specimens, representing 5.5%. Of these, there were 35 (54.7%) lesions in males and 29 (45.3%) in females giving a M:F ratio of 1.2:1. The age of the patients ranged from 4-64 years old (mean = 26.3 years). Dentigerous cyst (n = 21; 32.8%) was the most predominant lesion followed by periodontal (n = 12; 18.8%) and radicular cysts (n = 10; 15.6%). CONCLUSIONS: Cysts of the orofacial region are common in this environment and like previous studies from Nigeria odontogenic cysts are not uncommon, the most predominant being dentigerous cysts.

An unusual case of nasopalatine cyst in Brazilian population / Um caso incomum de cisto nasopalatino na população brasileira

The nasopalatine duct cyst (NPDC) is the most common non-odontogenic cyst typically found in middle-aged Caucasian female in Brazil, however the present report describes a case in a 35 year-old black male. NPDC are usually asymptomatic and are discovered incidentally during routine radiological examination. A cone-beam computed tomography (CBCT) is a valuable tool to localize a cyst within the nasopalatine canal. CBCT enables analysis of the dimension of the NPDC, analysis of the involvement of neighboring anatomical structures and assists in treatment planning. The authors at this case highlight the importance of clinical examination with an unbiased view of age, gender and ethnicity.

O cisto do ducto nasopalatino (CDNP) é o mais comum dos cistos não-odontogênicos geralmente encontrado em mulheres brancas de meia idade no Brasil, embora o presente relato descreva um caso em um homem negro de 35 anos de idade. Os CDNP são usualmente assintomáticos e são descobertos acidentalmente durante o exame radiográfico de rotina. A tomografia computadorizada por feixe cônico(TCFC) é uma ferramenta válida para localizar o cisto dentro do canal nasopalatino. A TCFC permite análise da dimensão do CDNP, análise do envolvimento das estruturas anatômicas vizinhas e auxilia no planejamento do tratamento. Os autores neste caso alertam para a importância do exame clinico, com uma visão embasada na idade, gênero e grupo étnico.

Analysis of 153 cases of odontogenic cysts in a South Indian sample population: a retrospective study over a decade

The purpose of this study was to determine the prevalence of odontogenic cysts and to identify their clinico-pathological features among patients by studying biopsy specimens obtained from the archives of the Department of Oral and Maxillofacial Pathology, College of Dental Sciences, Davangere, Karnataka, India, during the past 10 years. Data for the study were retrieved from the case records of patients fitting the histological classification of the World Health Organization (1992). Analyzed clinical variables included age, gender, anatomical location, and histological diagnosis. Of the 2275 biopsy reports analyzed, 194 cases (8.5%) were jaw cysts, including odontogenic (6.7%) and nonodontogenic cysts (0.25%). Odontogenic cysts included 69.3% radicular, 20.3% dentigerous, 5.2% keratinizing odontogenic, 3.3% residual, and 1.9% other cysts, such as lateral periodontal, botryoid odontogenic, and gingival cysts. The most frequent clinical manifestation was swelling, followed by a combination of pain and swelling. Age, gender, and location were related to the etiopathologic characteristics of the cyst type. A definitive diagnosis can be made on the basis of clinical, radiological, and histological findings, which makes a good interdepartmental relationship between the clinicians and pathologists essential. Knowledge of the biological and histological behavior of the odontogenic cysts is required for their early detection and treatment.

Cisto ósseo traumático da mandíbula: revisão de 26 casos / Traumatic bone cyst of the mandible: a review of 26 cases

O cisto ósseo traumático é uma entidade patológica caracterizada pela presença de uma cavidade óssea assintomática desprovida de revestimento epitelial, sendo raramente encontrado nos maxilares. OBJETIVO: Descrever as características clínico-cirúrgicas e radiográficas dos cistos ósseos traumáticos. MATERIAL E MÉTODO: Estudo de caráter retrospectivo dos pacientes diagnosticados com cisto ósseo traumático em um serviço de patologia oral no período de 1992 a 2007. Informações referentes às características clínicas, radiográficas e cirúrgicas foram coletadas. RESULTADOS: Vinte e seis casos de cisto ósseo traumático foram diagnosticados no período de 15 anos, 17 pertencentes ao sexo masculino e 09 ao sexo feminino. A maioria dos pacientes afetados pertencia às duas primeiras décadas de vida, não relatava sintomatologia dolorosa, bem como história de trauma na região da lesão. O padrão multilocular foi observado em apenas sete casos, dando às lesões uma aparência radiográfica tumoral. A presença de ar no interior da cavidade patológica foi relatada em aproximadamente 70% dos casos, sendo rara a presença de conteúdo serossanguíneo e seroso. CONCLUSÃO: A maior prevalência de casos em pacientes jovens, a infrequente história de trauma e o pequeno número de lesões com conteúdo serossanguíneo refletem a necessidade de se discutir a real patogênese do cisto ósseo traumático.

The traumatic bone cyst is characterized by the presence of an asymptomatic sinus devoid of epithelial lining, which is rarely found in the jaws. OBJECTIVE: To describe the clinical, surgical and radiographic findings of traumatic bone cysts. MATERIAL AND METHOD: A retrospective study was made of patients diagnosed with traumatic bone cysts at an oral pathology department from 1992 to 2007. Data on the clinical, radiographic and surgical complications were gathered. RESULTS: Twenty-six cases of traumatic bone cyst were diagnosed in 15 years; 17 were male and 09 were female. Most patients were within first two decades of life and had no pain or history of trauma in the affected area. The multilocular pattern was observed in only seven cases, its radiographic appearance suggests a tumor. Air was found inside the lesion in about 70% of cases; serous fluid with blood and blood only were uncommon within the lesions. CONCLUSION: A higher prevalence in young patients, absence of a history of trauma, and a small number of lesions containing serous fluid with blood reflects the need to discuss the true pathogenesis of traumatic bone cysts.

Orthokeratinized odontogenic cyst: a report of two cases in the mandible / Cisto odontogênico ortoqueratinizado: relato de dois casos em mandíbula

PURPOSE: To describe the behavior clinical and pathological features of two cases of odontogenic cyst orthokeratinized. CASE DESCRIPTION: In case 1, a 17-year-old woman presented hard and painless swelling in the left posterior mandible. Radiographically, a radiolucent area with a radiopaque was observed. A clinical diagnosis of ameloblastoma or odontogenic keratocystic tumor was established. The histopathological examination revealed an orthokeratinized odontogenic cyst. In case 2, a 23-year-old woman presented a radiolucent lesion surrounded by radiopaque halo symmetrically distributed on both partially erupted lower third molars. A clinical diagnosis of bilateral dentigerous cyst (DC) was rended. The histopathological examination showed bilateral orthokeratinized odontogenic cyst. CONCLUSION: Orthokeratinized odontogenic cyst should be considered in the differential diagnosis of lesions occurring in the jawbones associated with an impacted tooth, particularly those cases simulating dentigerous cyst. In addition, we observed the importance of radiographs taken prior to orthodontic treatment as an important tool in the diagnosis of oral pathologies. Performing routine radiograph is of high clinical value, especially before orthodontic treatment.

OBJETIVO: Descrever os aspectos clinicopatológicos de dois casos de cisto odontogênico ortoqueratinizado e a compará-los a relatos anteriores. RELATO DO CASO: No caso 1, uma mulher de 17 anos de idade, apresentou edema endurecido e indolor na mandíbula posterior esquerda. Radiograficamente, uma área radiolúcida com uma radiopacidade foi observada. O diagnóstico clínico de ameloblastoma ou tumor odontogênico ceratocístico foi estabelecido. O exame histopatológico revelou um cisto odontogênico ortoqueratinizado. No caso 2, uma mulher de 23 anos apresentou duas lesões radiolúcidas circundadas por halos radiopacos simetricamente distribuídas, associada aos terceiros molares inferiores irrompidos. Um diagnóstico clínico de cisto dentígero bilateral (DC) foi estabelecido. O exame histopatológico mostrou ser um cisto odontogênico ortoqueratinizado. CONCLUSÃO: Cisto odontogênico ortoqueratinizado deve ser considerado no diagnóstico diferencial das lesões que ocorrem na mandíbula associado com dentes impactados, especialmente aqueles casos que simulem o cisto dentígero. Além disso, observamos a importância de tomadas radiográficas antes do tratamento ortodôntico no diagnóstico de patologias bucais.

Post-Operative Maxillary Cyst after Maxillary Orthognathic Surgery: Report of an Unusual Case

Postoperative maxillary cyst is a rare complication of surgical intervention associated with maxillary sinuses. The present paper describes a 25-year-old man presenting with a lump sensation in the left cheek area after Le Fort I osteotomy and mandibular sagittal split osteotomy. The orthopantomograph revealed a bony defect in the left maxillary alveolus. On the computerized tomography, a 1x2x3cm sized, lower density mass, between the left paramedian side of the maxillary alveolar process and hard palate was observed. The cyst was drained and enucleated. More frequent post-operative maxillary cysts may occur with an increase of Le Fort I osteotomies.

Localização inusitada de um Cisto Ósseo traumático: aspectos radiográficos / Unusual localization of the Traumatic Bone Cyst: radiographic aspect

O cisto ósseo traumático é considerado um pseudocisto que ocorre com baixa freqüência, representando aproximadamente 1% dos cistos dos maxilares. É uma cavidade dentro do osso delimitada por tecido conjuntivo, podendo estar vazia ou contendo fluido. Geralmente é descoberto num exame radiográfico de rotina e a maior incidência ocorre no corpo da mandíbula, radiograficamente caracteriza-se como uma área radiolúcida unilocular bem definida, com um limite oval ou festonado. A lesão costuma contornar as raízes dos dentes adjacentes.Relato de caso: o presente trabalho tem como objetivo relatar um caso clínico de cisto ósseo traumático em região incomum de processo condilar em paciente jovem, descrevendo as características clínicas, histopatológicas, radiográficas, tomográficas, plano de tratamento, prognóstico e acompanhamento do paciente.Conclusão: esta é uma lesão essencialmente benigna do ponto de vista clínico. O diagnóstico deverá ser feito com exames clínicos, radiográficos/tomográfico e histopatológico. O tratamento, na maioria das vezes, envolverá exploração cirúrgica com curetagem, tendo um excelente prognóstico...

The traumatic bone cyst is considered a pseudocist not frequently observed, representing approximately 1% of the maxilares cysts. It is a cavity inside the bone tissue, which may be empty or containing fluid. Usually it is found in routine radiographic examination and more frequently in the mandible body. It is usually located on the symphysis or body of mandible region as a well defined an only radilucent area.Case report: the aim of this work is to present a report case of an traumatic bone cyst, in unusual area of mandibular ramus observed in a young patient. It describes the clinical, hispathological, radiographic and tomographic characteristics of the case, a treatment plan, a prognostic and patient observation informations. Conclusion: this is an essentially benign lesion from a clinical standpoint. The diagnosis should be done with clinical, radiographic/tomographic and histopathologic. In most cases the treatment will involve exploratory surgery with curettage, with an excellent prognosis...

Cisto do ducto nasopalatino: relato de caso clínico / Nasopalatine duct cyst: clinical case report

O cisto do ducto nasopalatino é o de maior frequência na classifcação dos cistos de origem não odontogênica. O seu desenvolvimento pode promover alterações estéticas e comprometer estruturas que compõem a região nasopalatina. Este trabalho tem como objetivo relatar um caso clínico de cisto do ducto nasopalatino, em cuja conduta realizou-se marsupialização seguida de enucleação como tratamento cirúrgico desta lesão. Ressaltam-se também as dificuldades de diagnóstico do cisto do ducto nasopalatino e a conduta terapêutica preconizada para a sua resolução.

The nasopalatine duct cyst (NPDC) is considere to be the most frequent of the nonodontogenic cysts. Its development can cause aesthetic alterations and compromise the structures composing the nasopalatine region. This work aimed to report a clinical case of the nasopalatine duct, in which marsupialization was used, followed by enucleation as a surgical treatment for this lesion, with emphasis on the diagnosis diffculties experienced and the therapeutic conduct proclaimed for its resolution.

Cisto do ducto nasopalatino em intima relação com implante osseointegrado / Nasopalatine cyst of the duct and its intimate relationship with osseointegrated implant

O cisto do ducto nasopalatino é não odontogênico do tipo fissural, de ocorrência pouco freqüente, que provavelmente se desenvolve pela proliferação de restos epiteliais incluídos no interior do canal nasopalatino por ocasião da fusão dos processos palatinos com a pré-maxila. O presente relato objetivou contribuir ao estudo com a descrição das características de um caso clínico, que se referia a uma lesão assintomática identificada ao exame radiográfico panorâmico para implante dental. A lesão apresentava imagem radiolúcida com aproximadamente 15mm de diâmetro delimitado por halo radiopaco, localizada no palato duro região de forame nasopalatino. Foi realizada biópsia excisional observando-se à microscopia óptica presença de cavidade cística revestida por epitélio composto por duas camadas de células de aspecto cúbico e cápsula fibrosa envolvendo todo o conjunto, com resultado histopatológico de cisto nasopalatino. A evolução pós-operatória ocorreu de acordo com o descrito na literatura para esse tipo de lesão, dentro dos limites favoráveis de reparação e sem sinais clínicos e/ou radiográficos de recidiva após dois anos.

The nasopalatine duct cyst is a non odontogenic cyst whose occurrence is little frequent, probably originating from proliferation of remains epithelial cells included inside the nasopalatine duct by occasion of the coalition of the palatine processes with the anterior maxilla. The present report aimed at to contribute to the study with the description of the characteristics of a clinical case that refers to an asymptomatic lesion identified in radiographic exam for dental implants. It was made excisional biopsy being observed to the optical microscopy presence of cystic cavity covered by epithelium composed by two layers of cells of cubic aspect and fibrous capsule involving the whole group, with the histopathological result of nasopalatine duct cyst. The postoperative evolution happened in agreement with described in the literature for that lesion type, inside of the favorable limits of repairing and without clinical or radiographic recurrence signs after two years.

Acesso transnasal para marsupialização de cisto naso-labial: relato de caso / Transnasal Approach to Marsupialization of the Nasolabial Cyst: Report of Case

O cisto naso-labial é cisto não odontogênico raro e de evolução lenta que, dependendo do tamanho, pode causar assimetria facial. O tratamento do cisto naso-labial comumente, e com sucesso, se dá por enucleação cística com acesso intra-oral. Existe um potencial risco de formação de uma fístula oro-nasal na enucleação cística por acesso intra-oral, devido à proximidade desse cisto com a mucosa nasal. A marsupialização por via nasal pode ser uma opção no tratamento do cisto naso-labial com menor risco de formação de fístula oro-nasal. O presente artigo relata um caso de cisto naso-labial tratado por marsupialização com acesso via transnasal

The nasolabial cyst is a rare nonodontogenic cyst of slow progression which, depending on its size, can cause facial asymmetry. It is commonly and successfully treated by enucleation, using an intra-oral approach. There is a potential risk of an oronasal fistula when this modality of treatment is employed, owing to the proximity of the cyst to the nasal mucosa. Transnasal marsupialization can be an option in the treatment of the nasolabial cyst as there is a lower risk of formation of an oronasal fistula. The present paper reports a case of nasolabial cyst treated by marsupialization, using a transnasal approach