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http://dx.doi.org/10.1136/bcr-2022-249828 | DOI Listing |
Oral Maxillofac Surg
January 2025
Department of Oral and Maxillofacial Surgery, Goa Dental College and Hospital, Bambolim, Goa 403202, India.
Background: Immunoglobulin G4 related disease (IgG4-RD) is an immune-mediated, multifocal, fibroinflammatory disease with varied clinical manifestations. The involvement of head and neck region is infrequent. The objective was to report a case of localized IgG4-RD of mandible that clinically mimicked a lytic lesion.
View Article and Find Full Text PDFVirchows Arch
December 2024
Department of Pathology and Laboratory Medicine, Indiana University, 350 W 11st St, Indianapolis, IN, 46202, USA.
Rhabdomyosarcoma (RMS) is the most common soft tissue malignancy in childhood, accounting for 3% of all pediatric malignancies and 50% of all pediatric soft tissue sarcomas. In adolescents and young adults (AYA) however, RMS comprises only 6.5% of all soft tissue sarcomas.
View Article and Find Full Text PDFVirchows Arch
December 2024
Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, 350 W. 11thStreet, Room 4086, Indianapolis, IN, 46202, USA.
Sclerosing epithelioid fibrosarcoma (SEF) was originally described as a peculiar variant of fibrosarcoma in 1995. Subsequent studies showed that conventional SEF was associated with both immunohistochemical expression of MUC4 and EWSR1/FUS gene rearrangements with CREB3L1 as the predominant fusion partner. Since then, a distinct group of fibrous tumors characterized by YAP1::KMT2A and KMT2A::YAP1 gene rearrangements and SEF-like morphology has been described.
View Article and Find Full Text PDFGenes Chromosomes Cancer
November 2024
Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
Conventional high-grade osteosarcomas are characterized by aggressive radiologic features, cytologic pleomorphism, and complex genomics. However, rare examples of osteosarcomas remain challenging due to unusual histology, such as sclerosing or osteoblastoma-like features, which may require molecular confirmation of their complex genetic alterations. We have encountered such a case in a 17-year-old man, who presented with a third metatarsal sclerotic bone lesion, found incidentally in the work-up of a foot trauma.
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