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Congress: ECR26
Poster Number: C-24490
Type: Poster: EPOS Radiologist (educational)
Authorblock: T. M. Ruiz, L. C. P. Quiche, A. Gasparoni Leite, E. Koshimura, M. Ozaki, M. Bastião, S. C. Mandaloufas, S. C. C. de Castro, V. Jabour; São Paulo/BR
Disclosures:
Thiago Muñoz Ruiz: Nothing to disclose
Lara Carolina Peixoto Quiche: Nothing to disclose
Andrea Gasparoni Leite: Nothing to disclose
Erika Koshimura: Nothing to disclose
Marcos Ozaki: Nothing to disclose
Marcio Bastião: Nothing to disclose
Sandro Coumbis Mandaloufas: Nothing to disclose
Stephanie Catarine Carqueijo de Castro: Nothing to disclose
Victor Jabour: Nothing to disclose
Keywords: Anatomy, Extremities, Musculoskeletal soft tissue, Ultrasound, Ultrasound-Colour Doppler, Ultrasound-Spectral Doppler, Image compression, Perception image, Foreign bodies, Tissue characterisation
Learning objectives Focal lesions of the fingers are a frequent clinical complaint and represent a diagnostic challenge due to the small size, superficial location, and wide histopathological spectrum of possible entities. Accurate characterization is essential to guide management, avoid unnecessary invasive procedures, and promptly identify lesions requiring surgical or oncologic referral.The aim of this study is to provide, through a pictorial review of diverse cases from our institution, a visual guide for the diagnosis and differentiation of the most clinically relevant focal...
Read more Background High-frequency ultrasound has become an established tool for evaluating hand and finger pathology, offering real-time, high-resolution assessment of superficial soft tissues. The use of linear transducers operating at frequencies ≥15–22 MHz enables detailed visualization of the nail unit, digital nerves, vessels, tendons, and subcutaneous structures. [fig 1] This work is based on a retrospective pictorial review of patients referred for ultrasound evaluation of palpable or symptomatic finger lesions. All examinations were performed using high-frequency linear transducers, with systematic assessment including: Lesion location (subungual,...
Read more Findings and procedure details Complaint of focal lesions on the fingers, often palpable and visible, is common among patients. Ultrasound has become established as a fundamental method in the evaluation of hand and finger pathologies, providing accessible and non-invasive diagnostic guidance for a variety of conditions, including traumatic, inflammatory, and neoplastic lesions. High-frequency transducers allow detailed visualization of superficial anatomical structures, aiding in differential diagnosis and clinical management. Therefore, radiologists must be familiar with the main imaging patterns of focal lesions of the fingers ,...
Read more Conclusion High-frequency ultrasound is a powerful, accessible, and cost-effective imaging modality for the evaluation of focal finger lesions. By providing detailed anatomical and vascular information, HFUS enables confident differentiation among cystic, vascular, neural, and solid lesions, often allowing a specific or narrow differential diagnosis at the point of care.Recognition of characteristic sonographic patterns—such as joint communication in synovial cysts, intense vascularity in glomus tumors, and nerve continuity in peripheral nerve sheath tumors—can significantly impact clinical decision-making, reduce unnecessary biopsies or surgeries,...
Read more Personal information There are no conflicts of interest.
Read more References Reynolds DL Jr, Jacobson JA, Inampudi P, Jamadar DA, Ebrahim FS, Hayes CW. Sonographic characteristics of peripheral nerve sheath tumors. American Journal of Roentgenology. 2004 Mar;182(3):741–4. Winter N, Dohrn MF, Wittlinger J, Loizides A, Gruber H, Grimm A. Role of high-resolution ultrasound in detection and monitoring of peripheral nerve tumor burden in neurofibromatosis in children. Child’s Nervous System. 2020 Jun 19;36(10):2427–32. Tabrizi A, Afshar A, Mohebbi I, Pourjabali M, Taleb H. Schwannoma and Neurofibroma, Originating from the Ulnar Nerve...
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