Recurrence of oral squamous cell carcinoma in surgically treated patients at Khartoum Teaching Dental Hospital retrospective cross-sectional study.

Background: In terms of survival rate, recurrent oral squamous cell carcinoma (OSCC) after primary surgery is considered as a poor prognostic indicator.

Objective: This study aims to determine the incidence of OSCC recurrence among patients treated at Khartoum Teaching Dental Hospital (KTDH) and possible risk factors associated with it.

Methods: Records of 303 patients with a history of radical surgery were retrieved from the hospital's archives, and the histopathological records were retrieved from the archival specimens of Professor Ahmed Suleiman Oral Pathology Laboratory, Faculty of Dentistry, and University of Khartoum.

Pigmented dentinogenic ghost cell tumor: a unique case report and a review of the literature.

Dentinogenic ghost cell tumors are rare tumors, and few cases of them were reported in the literature. The presence of pigment in odontogenic lesions is a rare unexplained histological finding. In this report, we describe a unique case of a 7-year-old girl that was referred to the Department of Oral and Maxillofacial Surgery complaining of a left mandibular swelling.

Clinical Presentation of Wide Field of Cancerization Associated with Oral Squamous Cell Carcinoma.

Background: The late presentation of oral squamous cell carcinoma (OSCC) patients in Sudan, with advanced stages and wide field of cancerization (WFC), has a negative impact on these patients. The present study aimed to investigate the different clinical presentations of mucosal changes in WFC associated with OSCC in Sudanese patients.

Methods: This a prospective longitudinal study of 93 OSCC cases.

Epithelial PD-L1 expression at tumor front predicts overall survival in a cohort of oral squamous cell carcinomas from Sudan.

Background: We recently described the tumor immune microenvironment (TIME) in oral squamous cell carcinomas (OSCC) from Sudan by assessing the core of the lesions. However, the invasive tumor front (ITF) is the most active part of OSCC lesions; thus, TIME should also be characterized at the ITF in this patient cohort.

Objectives: We aimed to evaluate patterns of immune cell infiltration at the ITF in a cohort of OSCC patients from Sudan previously investigated at the tumor center and their association with clinicopathological parameters.

A Proposed Method for Cervical Lymph Node Evaluation in Head and Neck Cancer Patients: A Radiological Study.

Objectives: To present a new method to assess the cervical lymph nodes status in head and neck cancer patients.

Methods: Twenty-five oral and maxillofacial cancer patients underwent preoperative CT imaging. The cervical lymph node features on CT scan were examined.

Characterization of immune cell infiltrate in tumor stroma and epithelial compartments in oral squamous cell carcinomas of Sudanese patients.

Background: Tumor immune infiltrate has been explored in oral squamous cell carcinoma (OSCC), but studies on simultaneous characterization of multiple immune cell subtypes separately in stromal and intraepithelial tumor compartments are limited.

Objectives: We aimed to investigate the immune cell infiltrate in OSCC by using immunohistochemistry (IHC) for a panel of inflammatory cells in stromal and epithelial tumor compartments for a better characterization of the tumors.

Methods: Thirty-six OSCC lesions and nine normal oral mucosa (NOM) samples from patients attending Khartoum Dental Teaching Hospital, Sudan were investigated for presence of tumor infiltrating lymphocytes, tumor-associated macrophages, tumor-associated neutrophils, and PD-L1 positive cells in the inflammatory infiltrate by single and double IHC.

The epidemiology of autoimmune bullous diseases in Sudan between 2000 and 2016.

Objectives: Autoimmune bullous diseases vary in their clinico-epidemiological features and burden across populations. Data about these diseases was lacking in Sudan. We aimed to describe the epidemiological profile and to estimate the burden of autoimmune bullous diseases in Sudan.

The Influence of Immediately Loaded Basal Implant Treatment on Patient Satisfaction.

Background: Improving patient satisfaction and quality of life is of great importance when considering the different prosthetic treatment options for patients with severely resorbed residual alveolar ridges. We aimed to evaluate and compare patients' satisfaction when changing from fixed, removable, and/or conventional implant prostheses to basal implant-supported prostheses.

Methods: Sixty patients with a history of fixed, removable, and/or conventional implant prostheses who received basal implant-supported prostheses (BCS®, IHDE Implant System) were included in this study.

Bell's Palsy: A Prospective Study.

Background: Bell's palsy is an acute idiopathic facial nerve paralysis of sudden onset. It is the most common cause of lower motor neuron facial nerve paralysis with an annual incidence of 15-30 per 100,000 population. The objective of this work is to study the grade of the attack and the associated symptoms of Bell's palsy in a group of Sudanese patients.

Oral leukoplakia in the Sudan: clinicopathological features and risk factors.

Objectives: To analyse the clinical and histopathological features of oral leukoplakia (OL) in the Sudan, and to identify the risk factors associated with dysplastic and malignant changes.

Methods: Records of 117 cases with the diagnosis of OL at the Department of Oral Pathology in the period from 2010 to 2017 were reviewed.

Results: Of the 117 cases included in this study, 30 cases (25.

Prevalence of Cutaneous Leishmaniasis in Western Highlands in Yemen.

Leishmaniasis in Yemen is still not fully investigated nor well studied. Recently, outbreaks of cutaneous leishmaniasis (CL) in western highland were declared. However, there are no reports concerning the disease and the circulating species in the region.

Viral infection and oral habits as risk factors for oral squamous cell carcinoma in Yemen: a case-control study.

Objective: The role of qat chewing, tobacco (shammah) dipping, smoking, alcohol drinking, and oral viral infection as risk factors for oral squamous cell carcinoma (OSCC) in Yemen was assessed.

Study Design: A total of 60 cases of OSCC and 120 age- and gender-matched controls were analyzed with respect to demographic data, history of oral habits, and the presence of human papillomavirus (HPV)-16, HPV-18, or Epstein-Barr virus (EBV) as determined by Taqman quantitative polymerase chain reaction. Logistic regression analysis was used to identify independent predictors of the disease.

Oral cavity eumycetoma: a rare and unusual condition.

In this short communication, we report on a 25-year-old male patient who presented with a longstanding painless swelling under the tongue. It was of a gradual onset and course, but 2 months before presentation it suddenly increased in size. Local examination revealed a tender firm pigmented mass in the midline of the mouth floor.

Pattern of malignant tumors registered at a referral oral and maxillofacial hospital in Sudan during 2006 and 2007.

Background: A progressive increase in the incidence and mortality of oral cancer is expected in Sudan. However, updated information on the epidemiology and pattern of the disease in the country is needed to draw the attention of the local authorities.

Aim: The aim of this study has been to describe the pattern of cancer cases attending a referral oral and maxillofacial hospital in Sudan during the period 2006-2007.