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Giant cell tumors (GCTs) are common benign bone tumors found in young adults, frequently occurring in the long bones but rarely in the skull. Although considered benign, GCTs have the potential to be aggressive, destroying surrounding tissue. Here, we present the unusual case of a patient with a GCT of the middle ear and skull base. A 19-year-old male with an extensive giant cell tumor underwent surgical resection by a multidisciplinary team consisting of otolaryngology, neurosurgery, and plastic and reconstructive surgery. The mass was grossly resected, and a cervicofacial flap allowed for reconstruction with optimal cosmesis, a procedure not described for GCTs. This approach allowed for excellent wound healing without tumor recurrence. Gross total resection remains the most effective treatment for GCTs, minimizing radiation exposure and recurrence risk. However, an optimal surgical approach for skull GCTs has yet to be described. Skull-base GCTs present a challenge due to their complex anatomy and neurovascular elements. Further, the high rates of local recurrence make gross resection the goal of treatment, though this is difficult to achieve. The present case was successfully managed by extensive multidisciplinary surgical resection, highlighting the necessity of collaborative effects to achieve gross total resection and positive aesthetic outcomes.
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http://dx.doi.org/10.1016/j.jpra.2025.01.020 | DOI Listing |
Pathol Res Pract
September 2025
Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China. Electronic address:
Background: Dermal clear cell sarcoma (DCCS) is a rare malignant mesenchymal neoplasm. Owing to the overlaps in its morphological and immunophenotypic profiles with a broad spectrum of tumors exhibiting melanocytic differentiation, it is frequently misdiagnosed as other tumor entities in clinical practice. By systematically analyzing the clinicopathological characteristics, immunophenotypic features, and molecular biological properties of DCCS, this study intends to further enhance pathologists' understanding of this disease and provide a valuable reference for its accurate diagnosis.
View Article and Find Full Text PDFSci Adv
September 2025
Department of Molecular and Cellular Biology, University of California, Davis, Davis, CA, USA.
Understanding how cells control their biophysical properties during development remains a fundamental challenge. While macromolecular crowding affects multiple cellular processes in single cells, its regulation in living animals remains poorly understood. Using genetically encoded multimeric nanoparticles for in vivo rheology, we found that tissues maintain mesoscale properties that differ from those observed across diverse systems, including bacteria, yeast species, and cultured mammalian cells.
View Article and Find Full Text PDFEur Heart J
September 2025
Medizinische Klinik und Poliklinik II, Universitätsklinikum Bonn, Venusberg-Campus 1, Bonn 53127, Germany.
Background And Aims: Fulminant myocarditis (FM) is a complex clinical syndrome characterized by acute myocardial inflammation and cardiogenic shock. Evidence on long-term outcomes, mortality risk factors, and targeted treatment options remains limited.
Methods: This retrospective analysis included consecutive adult patients admitted for FM between January 2012 and November 2022 at 26 European tertiary centres.
Neuropathol Appl Neurobiol
October 2025
Division of Rheumatology and Systemic Inflammatory Diseases, III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Aims: Sarcoid myopathy (SaM) is characterised by granulomatous myositis (GM) and can overlap with inclusion body myositis (IBM), a late-onset chronic idiopathic inflammatory myopathy with a still enigmatic pathogenesis. As GM can occur in different clinical contexts, we aimed to examine the histomorphologic features and gene expression profiles in cases of definite SaM that may inform diagnostic and therapeutic considerations.
Methods: We performed a multidimensional characterisation of muscle biopsy specimens from patients with 'pure SaM' (n=17), SaM with concomitant IBM (SaM-IBM) (n=2), including histopathologic and ultrastructural analysis in addition to quantitative real-time polymerase chain reaction.
Scand J Rheumatol
September 2025
Centre for Rheumatology, Department of Medicine, Turku University Hospital and University of Turku, Turku, Finland.