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The goal of this clinical trial is to learn about the application of domestic PET/MR in major brain diseases. The main questions it aims to answer are: - Overcome the bottleneck of early accurate diagnosis and treatment in major brain diseases clinical practice. - Promote the clinical application of domestic PET/MR, enhance international competitiveness. Participants will have a PET/MR scan of the brain.
Positron emission tomography (PET), an advanced diagnostic imaging technique, exploits the annihilation of positrons (e+) to delineate pathological alterations within diseased tissues. Integral to PET scanners are detector systems that transform gamma photons into fluorescent photons, thereby gleaning insights into the energy, time, and spatial distribution of gamma photons emanating from positron-emitting radiopharmaceuticals. Conventional PET scanners, bear a significant financial burden primarily due to their reliance on LSO (lutetium oxyorthosilicate) or LYSO (lutetium yttrium oxyorthosilicate) scintillation crystals. The exorbitant cost and limited availability of these...
This study will investigate how genetic and environmental factors contribute to the development of melanoma, a type of skin cancer, and related conditions. Individuals >=4 weeks with a personal or family history of melanoma or atypical spitzoid/Spitz tumor may be eligible for this study. Participants will: - Fill out one or two questionnaires about their personal and family medical history. - Provide written consent for researchers to review their medical records and pathology materials related to their care and those of deceased relatives with melanomas, tumors, cancer, or other related illnesses for whom they are the next-of-kin or legally authorized...
Data involving orthopaedic conditions and rehabilitation aspects of musculoskeletal and neuromuscular disorders will be collected and stored as part of the normal clinical care of patients seen in the University of Florida (UF) and Shands Orthopaedics and Sports Medicine Institute.
Primary melanocytic tumors of the central nervous system are rare lesions and occur develop from leptomeningeal melanocytes. The WHO classification of tumors of the central nervous system in its most recent version (2021) distinguishes on the one hand the circumscribed melanocytic tumors including melanocytoma, benign, and its slope malignant, meningeal melanoma, with an intermediate grade lesion in between, called intermediate grade melanocytoma. They are to be distinguished from diffuse tumors or multifocal diseases such as melanocytosis and its malignant corollary, melanomatosis. The main current challenge is to distinguish them from their differential diagnoses,...
The purpose of this pilot study is that exosomes constitute a more interesting support for analyzes allowing a broader screening of molecular alterations to be carried out with more reliable, more sensitive and more efficient results than the reference Foundation One Liquid CDx test.
In this prospective, open, single-armed, multicenter, phase II study for application of 5-ALA in children and adolescents with brain tumors 80 patients will be investigated. Primary objective of the study is to determine the safety of 5-ALA for fluorescence-guided resections in children and adolescents with intra-axial brain tumors. Secondary objectives are - to determine whether fluorescent tissue truly signifies tumor (positive predictive value) in various pediatric brain tumors - to determine the degree of tumor resection on early post-operative MRI - and to determine the pharmacokinetics of 5-ALA in this population.
The objective is to use the advantages of heavy ion physical dosimetry and biology to improve the tumor control rate and long-term survival rate of high-grade glioma, reduce the occurrence of brain tissue radiation damage caused by increasing prescription dose, and provide new treatment suggestions for glioma radiotherapy.
This study is researching an experimental drug called REGN3767, also known as fianlimab (R3767), when combined with another medication called REGN2810, also known as cemiplimab (each individually called a "study drug" or called "study drugs" when combined). The study is focused on patients with a type of skin cancer known as melanoma. The aims of the study are to see how effective the combination of fianlimab and cemiplimab are in treating the melanoma skin cancer, in comparison with a medication, pembrolizumab, approved for the treatment of melanoma skin cancer in adults, and to observe any similarities, or differences, in how the study drugs work in adolescent...
This study aims to evaluate the tumor shrinkage effect of preoperative targeted induction therapy with dabrafenib and trametinib in patients with conventional ameloblastoma harboring the BRAF V600E mutation. The study will assess the proportion of cases where mandibular continuity cannot be preserved that can be converted to cases where mandibular continuity is preserved, as well as the proportion of cases where complete resection is initially not feasible that become resectable.
