We have performed a scanning electron microscope study on human parotid gland. By using a variety of techniques of maceration and digestion we have shown the 3D morphology of cells and of isolated endpieces.
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Nan Fang Yi Ke Da Xue Xue Bao
January 2025
School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China.
Objectives: To explore the synthesis of high-quality CT (sCT) from cone-beam CT (CBCT) using PE-CycleGAN for adaptive radiotherapy (ART) for nasopharyngeal carcinoma.
Methods: A perception-enhanced CycleGAN model "PE-CycleGAN" was proposed, introducing dual-contrast discriminator loss, multi-perceptual generator loss, and improved U-Net structure. CBCT and CT data from 80 nasopharyngeal carcinoma patients were used as the training set, with 7 cases as the test set.
BMC Oral Health
January 2025
Department of Stomatology, Chinese PLA General Hospital, Beijing, China.
Background: Salivary duct carcinoma (SDC) is a highly aggressive salivary gland malignancy with poor prognosis. The aim was to investigate the prognostic factors and survival outcomes in a cohort of SDC patients.
Materials And Methods: This study retrospectively analyzed the clinicopathological data of 61 SDC patients treated at the First Medical Center of the PLA General Hospital between January 2010 and December 2020.
Cureus
December 2024
Hematology/Oncology, University of Kansas Medical Center, Kansas City, USA.
A 58-year-old male, with a history of human immunodeficiency virus (HIV) and stage 4 left frontotemporal squamous cell carcinoma (SCC), presented with new-onset neck pain. He was diagnosed with HIV five years prior. The patient had a cluster of differentiation 4 (CD4) count of 53 cells/mm³ and a high viral load, later suppressed with bictegravir, emtricitabine, and tenofovir alafenamide (Biktarvy).
View Article and Find Full Text PDFHead Neck Pathol
January 2025
Department of Pathology, University Medical Center Utrecht, Utrecht, 3508 GA, The Netherlands.
Purpose: The NAB2::STAT6 fusion is predominantly associated with solitary fibrous tumors (SFTs) and is utilized in diagnosing SFTs through nuclear STAT6 protein overexpression. Recent studies expanded the phenotypic spectrum of NAB2::STAT6 rearranged neoplasms, including adamantinoma-like and teratocarcinosarcoma-like phenotypes. We report a case of a NAB2::STAT6 rearranged epithelial tumor exhibiting sebaceous differentiation in the parotid gland.
View Article and Find Full Text PDFCureus
December 2024
Department of Basic and Clinical Oral Sciences, Umm Al-Qura University, Makkah, SAU.
Objectives: Head and neck malignancies (HNMs) encompass a variety of cancers that affect the oral and para-oral tissues, the most common of which are squamous cell carcinomas. Radiotherapy is commonly used to treat these cancers, often involving radiation exposure to the salivary glands. This study aims to investigate the early impacts of radiotherapy on the internal microstructure of the salivary gland cells and identify which gland exhibits the highest level of radiosensitivity.
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