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Background: Nuclear medicine imaging is increasingly used in the evaluation of tumors of the head and neck. In the current study, we assess the value of single-photon emission tomography (SPECT) using the amino acid tracer L-3-[123I]iodine-alpha-methyl-tyrosine (IMT) for the detection of recurrent head and neck cancer.
Patients And Methods: 45 consecutive patients with suspected recurrence of previously treated head and neck cancer were examined by IMT-SPECT using a dual head system with integrated low-dose computed tomography (CT). The accuracy of the IMT-SPECT was evaluated by correlating the findings with results of histology or clinical and CT/MRI (magnetic resonance imaging) follow-up examinations.
Results: The sensitivity, specificity and accuracy of IMT-SPECT in the detection of recurrent/persistent tumors were 83, 89 and 84.5%, respectively. The positive and negative predictive value amounted to 96.5 and 60%, respectively.
Conclusion: IMT-SPECT using integrated low-dose CT appears to be a helpful complementary imaging tool for the detection of local recurrences and lymph node metastases of head and neck cancer and their differentiation from treatment-induced changes. The advantage of the method is the high positive predictive value in the diagnosis of relapsed tumors. However, a negative IMT-SPECT result does not exclude a recurrence.
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http://dx.doi.org/10.1159/000092025 | DOI Listing |
Endocr Connect
December 2024
M Ruchala, Department of Endocrinology, Metabolism and Internal Diseases, Poznan University of Medical Sciences, Poznań, Poland.
Introduction And Objectives: Isolated hypogonadotropic hypogonadism (IHH) may be associated with pituitary gland and olfactory system disorders. We aimed to correlate findings of Magnetic Resonance Imaging (MRI) of the pituitary gland and olfactory system in IHH patients with the patients' olfactory phenotype.
Patients And Methods: The present research was a single-center retrospective case-control study.
Cancer Causes Control
December 2024
Division of Prevention, National Cancer Center Institute for Cancer Control, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, Japan.
Introduction: The prevalence of smokeless tobacco consumption remains high despite policies on reduction interventions. This study aims to quantify the associations between smokeless tobacco use with cancer incidence and mortality globally.
Methods: We conducted a systematic review and meta-analysis following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and PROSPERO protocol (ID: CRD42023390468).
Angiogenesis
December 2024
Service de Génétique et centre de reference de la maladie de Rendu-Osler, Hôpital Femme-Mère-Enfants, Hospices Civils de Lyon, Bron, France.
Epistaxis greatly affects patients with hereditary hemorrhagic telangiectasia (HHT). Although few systemic treatment exist, nintedanib, is a good candidate thanks to its anti-angiogenic activity. Our main objective was to evaluate the efficacy of oral nintedanib on epistaxis duration in HHT patients with moderate to severe epistaxis.
View Article and Find Full Text PDFJ Neural Transm (Vienna)
December 2024
IAB - Interdisciplinary Working Group for Movement Disorders, Hamburg, Germany.
Spasmodic dysphonia (SD) is now generally considered to be a task-specific focal dystonia. For the first time, we wanted to explore the relationship between SD and dystonia from a combined neurological and phoniatric perspective. For this, we studied 115 patients with non-psychogenic SD by a combined neurological and phoniatric evaluation.
View Article and Find Full Text PDFJ Craniofac Surg
December 2024
Department of Otolaryngology-Head and Neck Surgery, Neuroplastic and Reconstructive Surgery, Naval Medical Center Portsmouth, Portsmouth, VA.
Cranioplasty for secondary reconstruction of cranial defects has historically focused on simply replacing the missing cranial bone to restore cerebral protection and fluid dynamics, but recent innovations have led to the development of customized cranial implants that address both bone and soft tissue deficits while avoiding postoperative complications such as temporal hollowing. In addition, customized cranial implants have incorporated implantable neurotechnology like ventriculostomy shunts, intracranial pressure monitoring devices, and medicine delivery systems within low-profile designs to convert previously "basic" implants into "smart" implants for added functionality. These "smart" implants aim to reduce complications and improve patient outcomes by leveraging the cranial space to house advanced technologies, providing benefits such as real-time biosensing, and treatment of chronic neurological conditions.
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