Eosinophilic angiocentric fibrosis is a rare indolent lesion of the head and neck region that has characteristic histologic findings of onionskin fibrosis and prominent eosinophils. Its pathogenesis has been poorly understood and has been most commonly attributed to hypersensitivity or previous trauma. Recently, the lesion has been included in the spectrum of immunoglobulin G4 (IgG4)-related disease. However, few of the existing cases of eosinophilic angiocentric fibrosis have been evaluated for IgG4 and IgG plasma cells. Therefore, we provide an update on the clinical and histologic features of eosinophilic angiocentric fibrosis to increase awareness of the entity and encourage its further characterization as an IgG4-related disease.
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http://dx.doi.org/10.5858/arpa.2017-0223-RS | DOI Listing |
Surg Pathol Clin
December 2024
Head and Neck Pathology Consultations, 22543 Ventura Boulevard, Suite 220 PMB1034, Woodland Hills, CA 91364, USA. Electronic address:
Fibroinflammatory lesions of the sinonasal tract include inflammatory polyps (chronic rhinosinusitis), various infectious, sarcoidosis, and NK/T-cell lymphoma as examples of the most commonly encountered lesions. However, the differential diagnosis includes several less frequently encountered entities, such as granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangiitis (Churg-Strauss), eosinophilic angiocentric fibrosis considered part of IgG-related disease, and Rosai-Dorfman disease. This review focuses on these latter entities providing an update on clinical, laboratory, imaging, histology, and ancillary testing employed to reach an actionable diagnosis.
View Article and Find Full Text PDFCureus
August 2024
Neurosurgery, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Dr. D. Y. Patil Vidyapeeth (Deemed to be University), Pune, IND.
Pilomyxoid astrocytoma (PMA) is a subtype of pilocytic astrocytoma (PA). PMA tends to exhibit a more aggressive course compared to PA. We present a case of a two-year-old male with a PMA in the suprasellar region who presented with developmental regression, loss of previously attained milestones such as the ability to hold his neck, walk, and talk, along with hypotonia in all four limbs.
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November 2024
Dermatology Department, Virgen del Rocío University Hospital, Seville, Spain.
Neuropathology
December 2024
Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bengaluru, India.
Exp Ther Med
August 2024
Institute of Pathology 'Dr Đorđe Joannović', Faculty of Medicine, University of Belgrade, Belgrade 11000, Republic of Serbia.
Mixed epithelial and stromal tumors (MESTs) of the kidney are rare renal neoplasms, primarily affecting middle-aged women. These tumors are characterized by a mix of epithelial and stromal components. While generally benign, MESTs require accurate diagnosis and appropriate management due to the potential for malignant transformation.
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