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Fine needle aspiration cytology including the analysis of human papilloma virus (HPV) DNA enhances the diagnostic workup of solitary cystic neck lesions in a population with a high incidence of HPV positive oropharyngeal cancer.
Acta Oncol
February 2025
Division of Ear Nose and Throat Diseases, Department of Clinical Sciences Intervention and Technology, Karolinska Institutet, Stockholm, Sweden; Medical Unit Head, Neck, Lung, and Skin Cancer, Theme Cancer, Karolinska University Hospital, Stockholm, Sweden.
Background And Purpose: Distinguishing branchial cleft cysts (BrCCs) from cystic metastases of human papillomavirus (HPV) positive tonsillar or base of tongue squamous cell carcinoma and cancer of unknown primary (CUP) is challenging. Fine needle aspiration cytology (FNAC) from cystic metastasis can be nonrepresentative, while reactive squamous cells from BrCC can be atypical. It is unclear whether benign characteristics and the absence of HPV-DNA in FNAC can enhance distinguishing BrCC from a cystic metastasis; therefore, we investigated here.
View Article and Find Full Text PDFSpatio-temporal segregation between sensory relay and swallowing pre-motor population activities by optical imaging in the rat nucleus of the solitary tract.
Pflugers Arch
January 2025
Division of Neurophysiology, Department of Physiology, Hyogo Medical University, Hyogo, 663 8501, Japan.
The nucleus tractus solitarius (NTS) contains neurons that relay sensory swallowing commands information from the oropharyngeal cavity and swallowing premotor neurons of the dorsal swallowing group (DSG). However, the spatio-temporal dynamics of the interplay between the sensory relay and the DSG is not well understood. Here, we employed fluorescence imaging after microinjection of the calcium indicator into the NTS in an arterially perfused brainstem preparation of rat (n = 8) to investigate neuronal population activity in the NTS in response to superior laryngeal nerve (SLN) stimulation.
View Article and Find Full Text PDFChoanal polyps (CPs) are benign, inflammatory, solitary lesions extending toward the junction between the nasal cavity/paranasal sinus and the nasopharynx through the choana. This study aimed to evaluate the clinical and histological characteristics of CPs in children compared to adult patients. Characteristics of patients (demography, main complaints, side, localization, surgical approach, histological characteristics, accompanying chronic rhinosinusitis [CRS], association with allergic rhinitis [AR] and aspirin sensitivity, postoperative follow-up period, recurrence rates) were retrospectively reviewed.
View Article and Find Full Text PDFBilateral Parotid Gland Oncocytoma Mimicking Oropharyngeal Cancer Metastasis: A Case Report from a Radiation Oncologist's Perspective.
Cancer Diagn Progn
November 2024
Department of Pathology, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea.
Background/aim: Parotid oncocytomas typically present as benign, unilateral, slow-growing, painless, and solitary masses that are histologically firm and multilobulated. They are often misdiagnosed as pleomorphic adenomas, hemangiomas, or other forms of oncocytosis. However, in our case, the parotid oncocytomas initially mimicked bilateral parotid gland metastasis of advanced oropharyngeal cancer.
View Article and Find Full Text PDFSolitary Myofibroma of the oral and maxillofacial regions in pediatric patients: A clinicopathological analysis of ten patients and review of 75 cases.
J Stomatol Oral Maxillofac Surg
February 2025
Department of Stomatology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing, China. Electronic address:
Background: The imaging manifestations of oral and maxillofacial myofibroma/myofibromatosis can vary among patients. Although many clinical cases have been reported, a consensus on the clinicopathological features of and treatment principles for this disease is lacking.
Purpose: This study aimed to summarize the clinicopathological features of solitary myofibroma of the oral and maxillofacial regions in pediatric patients.
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