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Comparison of Imaging Findings between Granulomatosis with Polyangiitis and Eosinophilic Granulomatosis with Polyangiitis on Sinus CT: Importance of High-Density Opacification of the Paranasal Sinuses.
AJNR Am J Neuroradiol
January 2025
From the Department of Radiology (I.R., S.P., A.K., O.S.), Boston Medical Center, Boston University Chobanian & Avedisian School of Medicine, Boston, Massachusetts
Background And Purpose: Granulomatosis with polyangiitis (GPA) and eosinophilic granulomatosis with polyangiitis (EGPA) are the most common causes of chronic sinusitis from systemic granulomatous diseases. While both are small- to medium-sized vasculitis with necrotizing granulomas, they have different clinical courses and prognoses. High-density sinus opacification has been reported in allergic fungal sinusitis with eosinophilic infiltrates.
View Article and Find Full Text PDFActinomycosis masquerading as a nasal polyp - a rare entity and diagnostic challenge.
GMS Hyg Infect Control
December 2024
Department of ENT, Sree Balaji Medical college Chromepet, Chennai, Tamil Nadu, India.
Actinomycosis is an endogenous bacterial infection caused by . This bacterium reside on the mucosa of oral cavity, tonsils, and genitourinary tract. Any insult such as trauma, surgery, or foreign body disrupts the mucosal barrier and gives entry to the underlying tissue to cause disease.
View Article and Find Full Text PDFHistological Features of Delayed Foreign Body Granuloma With Epithelioid Histiocyte Aggregation and Eosinophilic Reaction due to Hyaluronic Acid Injection.
Case Rep Dent
December 2024
Division of Pathology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan.
Dermal fillers such as hyaluronic acid (HA) have been widely used in recent years as a less surgically invasive cosmetic treatment. Although delayed foreign body granuloma may occur as a rare adverse reaction after the procedure, detailed histological reports are still limited. When occurring on the buccal mucosa of the oral cavity, the histopathology may resemble some lesions of minor salivary gland origin due to the material properties of HA.
View Article and Find Full Text PDFFungal Rhinosinusitis: An integrated diagnostic approach.
Ann Diagn Pathol
November 2024
Department of Pathology, Kasturba medical college, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India. Electronic address:
Classification of fungal rhinosinusitis (FRS) based on histomorphology and clinical presentation aids in early diagnosis and prompt patient management. In this retrospective observational study, clinicopathologic findings in patients diagnosed with fungal rhinosinusitis between January 2019 and December 2021 were evaluated. Clinical and imaging findings were retrieved from hospital records; slides from routine and histochemical studies were reviewed, and the cases were classified into non-invasive [fungal ball (FB) and allergic fungal rhinosinusitis (AFRS)] and invasive FRS [acute invasive fungal rhinosinusitis (AIFRS), chronic invasive fungal rhinosinusitis (CIFRS) and chronic invasive granulomatous fungal rhinosinusitis (CGFRS)].
View Article and Find Full Text PDFFungal Infections of the Sinonasal Tract and Their Differential Diagnoses.
Surg Pathol Clin
December 2024
Department of Pathology and Immunology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8118, St Louis, MO 63110, USA; Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8118, St Louis, MO 63110, USA. Electronic address:
Fungal rhinosinusitis is a broad group of diseases that includes noninvasive and invasive forms with overlapping clinical presentations. While most cases of fungal rhinosinusitis follow an indolent clinical course, surgical pathologists play a crucial role in early identification of life-threating subtypes, specifically invasive fungal rhinosinusitis. This review describes fungal infections of the sinonasal tract and their histopathologic mimickers.
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