Background Little is known about the epidemiology of lymphomas occurring in oral and para-oral sites, especially in developing countries such as Egypt. Hence, the aim of this study was to describe the frequency and time trends of oral and para-oral lymphomas in Cairo governorate from 2010 to 2019, with forecasting to 2030, and to examine relations between age, gender, site and type of lymphoma. Methods Histopathological reports of patients diagnosed with oral and para-oral lymphomas from 2010 to 2019 were retrospectively retrieved from archives of six different centers in Cairo governorate. Data regarding age, gender and site was collected and associations between types of lymphoma and these variables were detected using appropriate statistical methods. The significance level was set at p ≤ 0.05. Time series analysis was used to determine the trend of lymphoma frequency within 10 years of the study and to predict frequency until 2030. Results Lymphomas constituted 2.86% of oral and para-oral lesions. Non-Hodgkin lymphoma was more common than Hodgkin lymphoma. Patients with non-Hodgkin lymphoma showed a higher median age than patients with Hodgkin lymphoma (p = 0.001). Non-Hodgkin lymphoma was more prone to occur intra-orally (p = 0.014). No statistical significance was observed in gender distribution between Hodgkin and non-Hodgkin lymphoma. Even though no specific time trend was observed from 2010 to 2019, forecasting for frequency of lymphomas through 10 years (2020 to 2030) showed a predicted increase. Conclusions The findings of this study were consistent with majority of other studies held in various geographic regions. The study revealed that frequency of oral and para-oral lymphomas in Cairo governorate is expected to rise; hence, oral pathologists should be more clinically suspicious and expect to encounter these lesions more in their practice within the upcoming years.
Aim: To describe the frequency of oral and para-oral lymphomas in Cairo governorate's educational hospitals and institutions between 2010 and 2019. Methods: Histopathological reports of patients diagnosed with oral and para-oral lymphomas from 2010 to 2019 were retrospectively retrieved from archives of educational hospitals and institutions in Cairo governorate. Data regarding age, gender, site and diagnosis was collected and analyzed using descriptive statistical methods. Results: 362 cases of lymphomas were found which constituted 2.86 % of oral and para-oral lesions. The mean age of patients was 54 (standard deviation 18.5), the median age was 56 (range 3.5-92 years). Tonsil was the most common site, followed by parotid gland. Intra-oral affection was less frequent, with the hard palate being the most common intra-oral site. Non-Hodgkin lymphoma was more common than Hodgkin lymphoma. Diffuse large B-cell lymphoma was the most prevalent histologic subtype. Conclusions:The findings of the current study were consistent with majority of other studies held in different geographic regions. Since there were no previous studies that described the epidemiology of oral and para-oral lymphomas in Egypt, this study serves as a stepping-stone towards understanding their prevalence in Egypt.
Aim:The aim of this study was to identify the prevalence of the primary non-odontogenic maxillofacial bone and cartilage tumors. Methodology:Clinical data and histopathological diagnoses of primary non-odontogenic maxillofacial bone and cartilage tumors, diagnosed between January 2010 and December 2019, were collected from the histopathological reports of Cairo governorate's educational hospitals and institutions.Results: Out of 11,444 archival reports -found in the maxillofacial bones and paranasal sinuses-collected from the mentioned study centers, 186 were reported as non-odontogenic maxillofacial bone and cartilage tumors, yielding a 1.63% prevalence. Osteosarcoma was the most common lesion, followed by chondrosarcoma and osteoma, respectively. Females were found to be more prone to the investigated tumors. Conclusion:The non-odontogenic maxillofacial bone and cartilage tumors represent 1.63% in Cairo governorate. Demographic variations were seen in some of the tumors studied, which differed from the literature; however, osteosarcoma was found to be the most prevalent lesion, accounting for over half of the lesions studied.
Background: Salivary gland neoplasms are morphologically diverse neoplasms with variable histology, clinical behavior, and tumor grade. Moreover, specific gene translocations and fusions are associated with some types of SGNs. Aim: To evaluate the prevalence of salivary gland neoplasms diagnosed in Cairo's educational hospitals and to compare the results with findings in the literature. Materials and Methods: Data of salivary gland neoplasms diagnosed between 2010 and 2019 were collected from the files of the Cairo's educational hospitals. Results: Salivary gland neoplasms in the present study constituted 2.4% of all the 9609 registered oral and maxillofacial biopsies. A total of 231 cases of SGNs were collected and reviewed. Of these, (61.1%) were benign and (38.9%) were malignant. Minor salivary glands (51.94%) were more involved than major ones (45.02%). Pleomorphic adenoma was the most frequent type of benign SGNs (68.8%) while Mucoepidermoid carcinoma was the most frequent type of malignant SGNs (46.7%). The mean age of SGNs was 41.14 ±15.43 years with a slight male predilection. Conclusion: In this study we observed a marked geographic variation in the relative frequency of various salivary gland neoplasms in Cairo government.
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