13,212 results match your criteria Cancers of the Oral Mucosa

G3BP1 may serve as a potential biomarker of proliferation, apoptosis and prognosis in oral squamous cell carcinoma.

J Oral Pathol Med 2021 May 13. Epub 2021 May 13.

Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410000, China.

Background: G3BP1 is a prognostic biomarker for many types of cancers; however, its role in oral squamous cell carcinoma remains unclear. We investigated the role of G3BP1 as a potential biomarker for proliferation, apoptosis and prognosis in oral squamous cell carcinoma.

Methods: We obtained samples of normal oral mucosa (n = 17), of oral squamous cell carcinoma tissues (n = 61) and paired adjacent tissues (n = 47) from Xiangya Hospital for immunohistochemical evaluation to measure the expression of G3BP1, E-cadherin, Ki67, and Cleaved-caspase3. Read More

View Article and Full-Text PDF

Microsecretory Adenocarcinoma of Salivary Glands: An Expanded Series of 24 Cases.

Head Neck Pathol 2021 May 12. Epub 2021 May 12.

Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA.

Microsecretory adenocarcinoma (MSA) is a recently described salivary gland tumor with a characteristic histologic and immunophenotypic profile and recurrent MEF2C-SS18 fusions. Because only six cases of MSA have been published, its complete clinicopathologic spectrum is unclear, and its biologic behavior has not been documented. Here, we present an updated and expanded experience of 24 MSA cases. Read More

View Article and Full-Text PDF

[Intestinal Care Using L‒Glutamine Supplement and Probiotics Can Induce a Strong Anti‒Tumor Immune Response through the Induction of Mature Tertiary Lymphoid Structures in Pancreatic Cancer Patients Receiving Preoperative Chemotherapy].

Gan To Kagaku Ryoho 2021 Apr;48(4):465-471

Dept. of Gastroenterological Surgery, Kanazawa University Hospital.

Most cancer patients receiving chemotherapy are accompanied by gut dysbiosis and intestinal mucosal barrier dysfunction to a greater or lesser degree. These disorders of the gut can easily cause bacterial translocation, resulting in the formation of immunothrombosis composed mainly of neutrophil extracellular traps and activated platelets in hepatic sinusoid in order to trap bacteria. At the same time, however, a lot of alarmin such as HMGB1, S100A8/S100A9 and VEGF‒A which are released from immunothrombosis, promote to recruit many myeloid‒derived suppressor cells(MDSCs)from bone marrow, leading to the strong immunosuppressive milieu in both liver and cancerous lesions. Read More

View Article and Full-Text PDF

Effects of high-dose bisphenol A on the mouse oral mucosa: A possible link with oral cancers.

Environ Pollut 2021 May 4;286:117296. Epub 2021 May 4.

Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil. Electronic address:

Bisphenol A (BPA) is an endocrine disrupting chemical able to promote hormone-responsive tumors. The major route of BPA contamination being oral, the aim of the present study was to investigate BPA effects on oral cells. Here, we evaluated the impact of sub-chronic in vivo exposure to BPA and its in vitro effects on neoplastic and non-neoplastic oral cells. Read More

View Article and Full-Text PDF

Implication of the New AJCC pT Classification of SCC of the Lip Comparing With Other Oral Subsites.

Laryngoscope 2021 May 5. Epub 2021 May 5.

Head and Neck Surgery Department, University of São Paulo Medical School, São Paulo, Brazil.

Objective: To determine the implication of the new AJCC staging system for pT classification in a cohort of patients with SCC of the lip mucosa and compare it to other oral cavity sites.

Methods: Retrospective cohort of 744 patients treated between 2002 and 2017, by the Head and Neck Surgery Department of the University of Sao Paulo.

Results: Of 95 lip patients, 42 had pT upstage (58. Read More

View Article and Full-Text PDF

Distribution and determinants of submandibular gland involvement in oral cavity squamous cell carcinoma.

Oral Oncol 2021 Apr 30;118:105316. Epub 2021 Apr 30.

Department of Surgical Oncology, All India Institute of Medical Sciences, Rishikesh, India. Electronic address:

Introduction: Though the submandibular gland (SMG) is routinely sacrificed for several reasons during neck dissection in patients undergoing curative surgery for oral cavity cancers, it might be an innocent bystander and should be considered for preservation. This study aimed to identify the incidence, different patterns of invasion, and risk factors of SMG involvement in oral cavity squamous cell carcinoma (SCC).

Methods: This was a retrospective study of the patients who underwent upfront curative surgery for a biopsy-proven oral cavity SCC. Read More

View Article and Full-Text PDF

Oral myeloid sarcoma as an uncommon manifestation of acute myeloid leukemia: A case series and review of the literature.

J Am Dent Assoc 2021 May;152(5):393-400.e8

Background And Overview: Oral myeloid sarcoma (MS) is an extramedullary tumor that can occur in the setting of acute myeloid leukemia, either as the first sign of an underlying disease or later in the course of disease. The authors' aim was to present the clinical features of oral MS and review the literature.

Case Description: Case 1 was an 82-year-old woman with an asymptomatic erythematous swelling on the maxillary gingiva and no history of hematologic malignancy. Read More

View Article and Full-Text PDF

Oral-Gut Microbiome Axis in Gastrointestinal Disease and Cancer.

Cancers (Basel) 2021 Apr 28;13(9). Epub 2021 Apr 28.

Department of Oral Biology, Yonsei University College of Dentistry, Seoul 03722, Korea.

It is well-known that microbiota dysbiosis is closely associated with numerous diseases in the human body. The oral cavity and gut are the two largest microbial habitats, playing a major role in microbiome-associated diseases. Even though the oral cavity and gut are continuous regions connected through the gastrointestinal tract, the oral and gut microbiome profiles are well-segregated due to the oral-gut barrier. Read More

View Article and Full-Text PDF

Pleomorphic adenoma of hard palate: a case report.

Pan Afr Med J 2021 9;38:146. Epub 2021 Feb 9.

Département d´Odontologie Chirurgicale, Faculté de Médecine Dentaire de Rabat, Université Mohammed V, Rabat, Maroc.

Pleomorphic adenoma is a benign mixed tumor, which is composed of myoepithelial and epithelial cells. A fibrous capsule separates these cells from the surrounding tissues. Pleomorphic adenoma is the most common salivary gland tumour accounting for 40-70% of all major and minor salivary gland tumours. Read More

View Article and Full-Text PDF

Sialolithiasis of minor salivary gland: a challenging diagnostic dilemma.

J Korean Assoc Oral Maxillofac Surg 2021 Apr;47(2):145-148

Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Athens, Athens, Greece.

Minor salivary gland sialolithiasis (MSGS) is a not uncommon oral mucosal disease. Its clinical appearance may mimic a mucocyst or other benign submucosal overgrowth. Stasis of saliva, which accompanies MSGS, usually results in minor salivary gland inflammation, with a chronic sialadenitis appearance. Read More

View Article and Full-Text PDF

Mucosal resurfacing of the suprastructure maxillectomy cavity using nasal cavity mucosa flaps.

Oral Oncol 2021 Apr 25:105289. Epub 2021 Apr 25.

Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School & Chonnam National University Hwasun Hospital, Jeonnam, Republic of Korea. Electronic address:

Objective: We analyzed clinical data of patients in which the suprastructure maxillectomy site was covered with nasal cavity mucosa flaps with or without free mucosa graft from the nasal septum, to determine the usefulness of this procedure.

Patients And Methods: A total of four edentulous patients who had the suprastructure maxillectomy site covered using nasal cavity mucosa flaps with or without free mucosa graft from the nasal septum between 2014 and 2020, were analyzed.

Results: All patients underwent suprastructure maxillectomy using the external approach. Read More

View Article and Full-Text PDF

Large irritation fibroma of hard palate: a case report of a rare clinical entity.

Pan Afr Med J 2021 19;38:61. Epub 2021 Jan 19.

Department of Otorhinolaryngology, Giannitsa General Hospital, Pella, Greece.

Fibromas are benign tumors of connective tissue common in the oral cavity but rare on hard palate. This paper reports on an asymptomatic, slowly growing mass on the hard palate of a 90-year-old lady, with a reported use of denture for two decades. The patient presented with a 2. Read More

View Article and Full-Text PDF

[Metabolic acidosis in neobladder patients : Risk factors and treatment options].

Urologe A 2021 May 21;60(5):617-623. Epub 2021 Apr 21.

Urologisches Kompetenzzentrum für die Rehabilitation - UKR, Kliniken Hartenstein, Dr.-Herbert-Kienle-Str. 6, 34537, Bad Wildungen, Deutschland.

Background: In cystectomy patients who underwent neobladder creation, the intestinal mucosa of the neobladder is in constant contact with urine, which may result in chronic metabolic acidosis (CMA) due to specific absorption capabilities of the intestinal mucosa. Despite being a prevalent comorbidity, the risk factors for CMA and its diagnostic parameters are poorly understood.

Objectives: This review examines the risk factors associated with the development of CMA and their prevalence in patients with a neobladder. Read More

View Article and Full-Text PDF

Effects of long noncoding RNA on prognosis of oral squamous cell carcinoma: A protocol for systematic review and meta analysis.

Medicine (Baltimore) 2021 Apr;100(16):e25507

Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong University, Jinan.

Background: Long noncoding RNA (lncRNA) is reported to be upregulated in many tumors. Although the expression of lncRNA in oral squamous cell carcinoma has been assessed, the association between lncRNA expression and prognosis or clinicopathological feature still remains controversial. Therefore, we conducted a meta-analysis to verify whether lncRNA expression was related to prognosis or clinicopathological features in patients with oral squamous cell carcinoma. Read More

View Article and Full-Text PDF

Comparison between two cell collecting methods for liquid-based brush biopsies: a consecutive and retrospective study.

BMC Oral Health 2021 04 16;21(1):195. Epub 2021 Apr 16.

Department of Oral, Maxillofacial and Facial Plastic Surgery, Section of Clinical and Experimental Oral Medicine, Leipzig University Hospital, Liebigstraße 10-14, 04103, Leipzig, Germany.

Background: This study compares two different cell collectors, the Orcellex Brush (rigid brush) and the Cytobrush GT (nylon brush), using liquid-based cytology. A comparison of their obtainment procedures was also considered. The aim was to determine the diagnostic accuracy for detection of malignancy in oral brush biopsies. Read More

View Article and Full-Text PDF

Microdont Developing Outside the Alveolar Process and Within Oral Diffuse and Plexiform Neurofibroma in Neurofibromatosis Type 1.

Anticancer Res 2021 Apr;41(4):2083-2092

Private Practice in Orthodontics, Hamburg-Lokstedt, Germany.

Background/aim: Numerical aberrations of permanent dentition and dystopic tooth eruption are part of the phenotype of the tumor predisposition syndrome neurofibromatosis type 1 (NF1). In these cases, surplus tooth germs usually develop in the alveolar processes of the jaw. This report attests to the dystopic development of a dysplastic supernumerary tooth in NF1 arising outside the jaw. Read More

View Article and Full-Text PDF

Micronucleus Formation in Primary Oropharyngeal Epithelial Cells Reveals Mutagenicity of Cement Dusts.

Anticancer Res 2021 Apr;41(4):1849-1858

Department of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany;

Background/aim: Epidemiological studies showed an increased risk of developing laryngeal head and neck squamous cell carcinoma (HNSCC) for employees working in the construction business. This suggested a causal link between exposure to cement particles and development of HNSCC but data were missing.

Materials And Methods: We established an Organisation for Economic Co-operation and Development (OECD) guideline 487-conform micronucleus assay (MNA) using oropharyngeal mucosa-derived primary epithelial cells (OPCs) ex vivo. Read More

View Article and Full-Text PDF

Exposure to Particulate PAHs on Potential Genotoxicity and Cancer Risk among School Children Living Near the Petrochemical Industry.

Int J Environ Res Public Health 2021 03 4;18(5). Epub 2021 Mar 4.

Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia.

This study aimed to assess the association of exposure to particle-bound (PM) polycyclic aromatic hydrocarbons (PAHs) with potential genotoxicity and cancer risk among children living near the petrochemical industry and comparative populations in Malaysia. PM samples were collected using a low-volume sampler for 24 h at three primary schools located within 5 km of the industrial area and three comparative schools more than 20 km away from any industrial activity. A gas chromatography-mass spectrometer was used to determine the analysis of 16 United States Environmental Protection Agency (USEPA) priority PAHs. Read More

View Article and Full-Text PDF

The Potential of Colonic Tumor Tissue to Predict Staging and Its Interplay with Oral Abundance in Colon Cancer Patients.

Cancers (Basel) 2021 Mar 1;13(5). Epub 2021 Mar 1.

Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini, 66100 Chieti, Italy.

Background: Intestinal microbiota dysbiosis may enhance the carcinogenicity of colon cancer (CC) by the proliferation and differentiation of epithelial cells. Oral () and () have the ability to invade the gut epithelium, promoting tumor progression. The aim of the study was to assess whether the abundance of these odontopathogenic bacteria was associated with colon cancer. Read More

View Article and Full-Text PDF

Innovative Mucoadhesive Precursor of Liquid Crystalline System Loading Anti-Gellatinolytic Peptide for Topical Treatment of Oral Cancer.

J Biomed Nanotechnol 2021 Feb;17(2):253-262

UNESP, São Paulo State University, School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, 14800-903, Brazil.

Current researches report an actual benefit of a treatment for oral cancer via inhibition of proteolytic matrix metallopro-teinases (MPP) with a peptide drug, called CTT1. However, peptides present poor oral bioavailability. Topical administration on oral mucosa avoids its passage through the gastrointestinal tract and the first-pass liver metabolism, but the barrier function of the oral mucosa can impair the permeation and retention of CTT1. Read More

View Article and Full-Text PDF
February 2021

Focused ultrasound ablation of a large canine oral tumor achieves efficient tumor remission: a case report.

Int J Hyperthermia 2021 ;38(1):552-560

Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA.

Oral cancers are one of the commonly diagnosed tumors worldwide in human and veterinary patients. Most oral cancers are surgically resected; however, obtaining an adequate margin of safety in patients without compromising their quality of life is often challenging. Herein, we investigated the ability of non-invasive focused ultrasound (FUS) to thermally ablate a biopsy confirmed canine oral cancer. Read More

View Article and Full-Text PDF
January 2021

[Expression levels of MMP-14, ING4 and HIF-1α in 60 patients with oral squamous cell carcinoma and their clinical significance].

Shanghai Kou Qiang Yi Xue 2020 Dec;29(6):642-646

Zhongda Hospital Southeast University. Nanjing 210009, Jiangsu Province, China.

Purpose: To investigate the expression of metalloproteinase-14 (MMP-14), growth inhibitory factor 4 (ING4) and hypoxia-inducible factor-1α (HIF-1α) in human oral squamous cell carcinoma (OSCC) and their clinical significance, to provide references for clinical diagnosis and treatment of OSCC.

Methods: Sixty patients with OSCC admitted to our hospital from July 2014 to July 2019 were enrolled in this study. The tissue specimen of 60 patients were prepared into paraffin sections as the experimental group, while 20 cases of normal oral mucosal tissue were paraffin-embedded as the control group. Read More

View Article and Full-Text PDF
December 2020

Mouthwash Containing Vitamin E, Triamcinolon, and Hyaluronic Acid Compared to Triamcinolone Mouthwash Alone in Patients With Radiotherapy-Induced Oral Mucositis: Randomized Clinical Trial.

Front Oncol 2021 11;11:614877. Epub 2021 Mar 11.

Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran.

One of the most common side effects of radiotherapy in head and neck cancers is mucositis. Despite all the studies conducted on new therapies proposed for oral mucositis caused by radiation therapy, a single standard treatment strategy has not been developed yet. In the present study, for the first time, the effectiveness of the treatment with a combined mouthwash containing vitamin E (as an antioxidant), triamcinolone (as an anti-inflammatory agent) and hyaluronic acid (HA) (as a local reducer used for reducing the effects of ROS on the mucosa, with ameliorative effects (improving the healing process) compared to triamcinolone mouthwash alone was investigated in patients with radiotherapy-induced oral mucositis. Read More

View Article and Full-Text PDF

Pancytokeratin immunostained tumor buds and cytoplasmic pseudofragments are reliable early predictive variables for regional lymph node metastatic risk assessment of oral squamous cell carcinoma.

Indian J Dent Res 2020 Nov-Dec;31(6):904-910

Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, Karnataka, India.

Context: The 5-year survival rate in patients with cervical lymph node metastasis is reported to be 20-36% post surgery as compared to 63-86% in patients without nodal involvement. This necessitates assessing the metastatic potential of OSCC patients.

Objectives: To evaluate the role of Pancytokeratin immunostained tumour buds and cytoplasmic pseudofragments with other histopathological and immunohistochemical variables in predicting metastatic risk of Oral Squamous Cell Carcinoma (OSCC). Read More

View Article and Full-Text PDF

Oro-facial malignancy in north of Iraq: a retrospective study of biopsied cases.

BMC Oral Health 2021 03 23;21(1):147. Epub 2021 Mar 23.

Oral and Maxillofacial Pathology, Oral Diagnosis Department, College of Dentistry, University of Sulaimani, Sulaimani, Kurdistan Region, Iraq.

Background: Identifying the prevalence of orofacial malignancies is essential to provide health-care programs and services for a specific population. This study aimed to specify the prevalence, clinical and histopathological features of oral malignancies in Sulaimani for over 12 years.

Methods: All archived reports for orofacial specimens from 2008 to 2019 were collected from three major centers in Sulaimani governorate. Read More

View Article and Full-Text PDF

[Intra-oral Perineurioma, a case report].

Ned Tijdschr Tandheelkd 2021 Mar;128(3):145-149

A 48 year old woman was referred by her general practitioner to an oral and maxillofacial surgeon because of an asymptomatic, slow growing intra-oral tumor since three years. There were no sensory and motor symptoms. A well-defined tumor of 5 cm in diameter was located in the right cheek between the zygomaticus arch and the labial commissure. Read More

View Article and Full-Text PDF

[Skin diseases as indicators of cancer].

Hautarzt 2021 Apr 17;72(4):307-313. Epub 2021 Mar 17.

Hautklinik, Universitätsklinikum Aachen, Pauwelsstr. 30, 52074, Aachen, Deutschland.

In contrast to the obligatory paraneoplasias, which are usually rare, diseases such as Sweet's syndrome, thrombophlebitis or herpes zoster are more common. But they are less frequently associated with neoplasia. The risk of overlooking an associated neoplasm is therefore greater. Read More

View Article and Full-Text PDF

A rare case of nevus sebaceous of the bilateral labia minora: A case report and review of literature.

Medicine (Baltimore) 2021 Mar;100(10):e25047

Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, West China Second University Hospital.

Rationale: Nevus sebaceous (NS) is a lesion caused by congenital hyperplastic disorder of the sebaceous glands. It commonly noted in the scalp and face and rarely in the trunk, neck, or oral mucosa. We present a rare case of a lesion arising in the genital region. Read More

View Article and Full-Text PDF

Transcriptome array screening and verification of oral leukoplakia carcinogenesis-related hypoxia-responsive gene and microRNA.

Hua Xi Kou Qiang Yi Xue Za Zhi 2021 Feb;39(1):20-25

Dept. of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People,s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.

Objectives: To study the hypoxia response gene and microRNA (miRNA) expression profiles in the pathogenesis and progression of oral leukoplakia (OLK).

Methods: Affymetrix GeneChip human transcriptome array 2.0 was used to detect the transcriptome of normal mucosa, low-risk OLK, high-risk OLK, and early squamous cell carcinoma (SCC). Read More

View Article and Full-Text PDF
February 2021

Taking a step down on the reconstruction ladder for head and neck reconstruction during the COVID-19 pandemic.

BMC Surg 2021 Mar 8;21(1):120. Epub 2021 Mar 8.

Plastic Surgery Department, Shifa International Hospital, Pitras Bukhari Road H-8, Islamabad, Pakistan.

Background: Most of the head and neck cancers are time-critical and need urgent surgical treatment. Our unit is one of the departments in the region, at the forefront in treating head and neck cancers in Pakistan. We have continued treating these patients in the COVID-19 pandemic with certain modified protocols. Read More

View Article and Full-Text PDF