Human bites to the face treatment with pedicle flap technique: case report

Human bite wounds are less common than those caused by animal bites, and in general are contaminated by a wider range of microorganisms, thus increasing incidence of infectious complications. Patient management in the emergency room consists in aesthetic and functional rehabilitation and infection prevention. The aim of this article is to report a case of human bite to the face with upper lip and oral commissure tissue loss of a patient, who was a victim of assault, seen at a public emergency hospital in Rio de Janeiro, providing information on the clinical characteristics of the injury and the most appropriate treatment for the case studied.

What is the frequency of floor of the mouth lesions? A descritive study of 4016 cases / ¿Cuál es la frecuencia de las lesiones del suelo de la boca? Un estudio descriptivo de 4016 casos

Background: The aim of this study was to investigate the frequency of oral lesions in the floor of the mouth fromrepresentative oral pathology centres in Latin America.Material and Methods: This study was conducted on biopsies obtained from January of 1978 to December of 2018at nine Latin America oral and maxillofacial pathology centres. Gender, age and histopathological diagnosis wereevaluated. Data were analysed using descriptive methods. Chi-square test was used for pairwise comparisons.Results: From 114,893 samples, 4,016 lesions (3.49%) occurred in the floor of the mouth. Brazil showed 3,777 cases(94%), Mexico 182 cases (4.5%) and Argentina 57 cases (1.4%). Benign lesions represented 65.1% (2,617 cases),followed by 34.9% (1,404 cases) of malignant disorders. Lesions of epithelial origin were more frequent (1,964) cases; 48.9%), followed by salivary glands (1,245 cases; 31%) and soft tissue lesions (475 cases; 11.7%). The mostcommon histological subtypes were oral squamous cell carcinoma (1,347 cases; 33.5%), ranula (724 cases; 18%), oralleukoplakia (476 cases; 11.8%) and inflammatory fibrous hyperplasia (239 cases; 5.9%). The lesion affected males in2,129 cases and females in 1,897 cases.Conclusions: In the current study, lesions in the floor of the mouth represented 3.49% of biopsies submitted to oralpathology services and oral squamous cell carcinoma, ranula and leukoplakia were the most common lesions.(AU)

Oral and oropharyngeal diffuse large B-cell lymphoma and high-grade B-cell lymphoma: A clinicopathologic and prognostic study of 69 cases.

OBJECTIVE: The objective of this study was to describe the clinicopathological, molecular, and prognostic features of oral/oropharyngeal diffuse large B-cell lymphoma (DLBCL) and high-grade B-cell lymphoma. STUDY DESIGN: All cases were retrieved from 7 Brazilian institutions. Immunohistochemical reactions were performed to confirm the diagnoses and to categorize the tumors. In situ hybridization was used to detect Epstein-Barr virus (EBV) and fluorescence in situ hybridization was used to identify gene rearrangements. RESULTS: Most cases involved the oral cavity (76.8%). Males and females, with a mean age of 60 years, were evenly affected. Tumors mostly presented as painful swellings. Forty cases represented germinal center B-cell type (58%). Five cases presented double-hit translocation and 3 harbored rearrangement for MYC/BCL2/BCL6. EBV was detected in 3 cases (4.3%). The 5-year overall survival was 44.4%. Female sex, presence of pain and ulcer, microscopic "starry sky pattern" and necrosis, co-expression of c-Myc/Bcl2, and translocation of MYC were associated with a lower survival in univariate analysis (P = .05, P = .01, P = .01, P = .03, P = .05, P = .006, P = .05, respectively). CONCLUSION: Patients affected by oral/oropharyngeal DLBCL have a low survival rate. High-grade B-cell lymphoma (17.7%) and EBV-positive DLBCL, not otherwise specified (4.3%) account for a small number of cases.

Lesões neurais da cavidade oral: estudo clinicopatológico de 171 casos / Neural lesions of the oral cavity: study clinicopathological of 171 cases

Lesões neurais são incomuns na região de cabeça e pescoço, especialmente na cavidade oral, representa n d o o principal grupo de lesões da cavidade oral com células fusiformes. O diagnóstico destas lesões pode ser desafiador já que podem compartilhar características clínicas e microscópicas similares , podendo ter natureza reacional ou neoplásica. O objetivo deste trabalho foi avaliar as características clínicas e microscópicas das lesões neurais diagnosticadas no Laboratório de Patologia Oral da Faculdade de Odontologia da Universidade Federal do R io d e Janeiro Brasil no período entre 1971 até 20 2 1 Os casos foram obtido s após a revisão dos arquivos da instituição e o diagnóstico final de cada caso foi confirmado pela análise microscópica . A s características clínicas e microscópicas de cada caso foram apresentadas de maneira descritiva. Cento e setenta e um a lesões neurais foram identificadas . As lesões apresentaram se principalmente como nódulos normocrômicos, assintomáticos, de consistência firme e superfície lisa, localizados na língua de mulheres com m é dia de idade de 43, 5 anos Os di agnósticos mais comuns foram hamartoma neurovascular 30,4 tumor de cé lulas granulares (1 7 %), neuroma traumático ( 1 6,4 %)%), seguidos de placa neurogênica subgemal (1 2,9 %), neuroma solitário circunscrito ( 9,9 %)%), schwannoma 7,6 e neurofibroma 5, 8 O presente e stud o provavelmente representa uma das maior es casuística s de lesões neurais da cavidade oral disponível na literatura. (AU)

Neural lesions ar e uncommon in the head and neck region, parti cularly in the oral cavity, representing the most common group of oral spindle cell lesions of the oral cavity. The diagnosis of neural lesions may be ch a llenging since it may share cli nical and micros copical fe atures, showing reactive or neoplastic nature. The aim of the present study was to evaluate the clinical and microscopical features of neural lesions diagnosed in the Oral P athology Labora tory of th e School of Dentistry of Federa l U niversity of Rio d e Jan eiro Brazil in a period between 1971 and 20 21 . The cases were obtained from the review of the files of this institution and the final diagnosis were confirmed after microsc opical evaluati on O ne hu n dred and seventy one neural lesions were identified . The lesions presented preferably as asymptomatic and normochromic nodules of tender consistency and smooth surface, located in the tongue of women with median age of 4 3, 5 year s The most com mo n diagnose s were neurovascular hamartoma 30,4 granular cell tumor (1 7 %)%), traumatic neuroma 1 6,4 and followed by subgemmal neurogenous plaque 1 2,9 %), circumscribed solitary neuroma 9,9 %)%), schwannoma ( 7,6 and neurofibroma ( 5, 8 %)%). The present study likely re p resent s one of the largest series of neural lesions of the oral cavity of the literature. (AU)

Eruption sequestrum: an inflamed odontogenic hamartoma.

Eruption sequestrum (ES) is a single or even multiple, small whitish calcified masses found within the soft tissue of the opercula overlying the crown of erupting permanent molars of children. We herein report a well-documented case of ES, offering a review of published cases in the English literature. An otherwise healthy 6-year-old girl was seen for routine dental examination. A fragment of hard whitish tissue was observed in the gingiva overlying the erupting lower first permanent molar, which showed radiographic appearance of a faint round radiopacity above and separated from the occlusal surface of the related tooth. The patient was submitted to an excisional biopsy, and gross examination showed a hardened whitish fragment surrounded by gingival mucosa. Microscopic examination revealed odontogenic epithelium in association with chronic inflammatory infiltrate and small blood vessels in the connective tissue. Small concentric basophilic calcifications, round osteodentin, and pulp-like structures were also observed. The microscopic evaluation of additional cases of ES may improve the understanding of this uncommon inflamed odontogenic hamartoma.