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Background: Eosinophilic angiocentric fibrosis (EAF) is a rare, tumefactive inflammatory process of the sinonasal and upper respiratory tract and orbit. Numerous histologic mimickers of EAF occur in these locations.
Methods: A comprehensive literature review focused on EAF and its histologic mimickers was performed.
Results: This manuscript serves as an overview of the histopathological characteristics of EAF and its histologic mimickers, including granulomatosis with polyangiitis (GPA), eosinophilic granulomatosis with polyangiitis (EGPA), sinonasal inflammatory polyps, epithelioid hemangioma, invasive fungal rhinosinusitis, Langerhans cell histiocytosis, rhinoscleroma, inflammatory myofibroblastic tumor, and fibromatosis.
Conclusion: A correct diagnosis of EAF can be reached by identifying the classic histopathologic features of prominent eosinophilia, lymphoplasmacytic inflammation, and concentric perivascular fibrosis. Additionally, as EAF sometimes lies on the spectrum of IgG4-related disease, immunohistochemistry and serologic studies can be used to aid in diagnosis.
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http://dx.doi.org/10.1007/s12105-025-01795-x | DOI Listing |
Wien Med Wochenschr
September 2025
Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, 34093, Istanbul, Turkey.
Rosai-Dorfman disease (RDD) is a rare histiocytic disorder that may clinically and histologically resemble IgG4-related disease (IgG4-RD), especially in the presence of IgG4-positive plasma cell infiltration. In this case, a 69-year-old woman with generalized lymphadenopathy, constitutional symptoms, and elevated IgG4 levels was initially suspected to have IgG4-RD based on core needle biopsy. However, further evaluation with excisional lymph node biopsy revealed emperipolesis and S100-positive histiocytes, confirming the diagnosis of RDD.
View Article and Find Full Text PDFAnn Afr Med
September 2025
Department of Medical Gastroenterology, Dr. D. Y. Patil Vidyapeeth, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, Maharashtra, India.
Solitary rectal ulcer syndrome (SRUS) is an uncommon, benign condition that presents with a wide range of symptoms mimicking other pathological conditions, often leading to misdiagnosis and delays in treatment. A 60-year-old male patient was diagnosed with SRUS with rectal stricture with the help of colonoscopy, anorectal manometry, magnetic resonance defecography, and histopathological examination. He was managed with high-fiber diet, laxatives, biofeedback therapy, argon plasma coagulation, and stricture dilatation, which effectively alleviated the patient's condition.
View Article and Find Full Text PDFJ Neurosurg Case Lessons
September 2025
Department of Neurosurgery, St. Francis Hospital & Heart Center, Roslyn, New York.
Background: Myxoid spindle cell neoplasm and meningioma are two different pathologies that can have similar radiographic findings. Despite their benign radiographic appearance, myxoid spindle cell neoplasms are heterogeneous, prone to recurrence, and associated with high mortality.
Observations: The authors present the case of a woman in her late 60s who experienced a witnessed seizure characterized by right arm tonic-clonic movements and subsequent left-sided manifestations.
Urology
September 2025
Oregon Health & Science University, Division of Plastic & Reconstructive Surgery, Portland, OR, USA; Oregon Health & Science University, Department of Urology, Portland, OR, USA. Electronic address:
Objectives: To assess histologic changes in the peritoneal neovagina following RPGAV to better guide shared decision-making regarding vaginoplasty techniques. Robotic-Assisted Peritoneal Flap Gender-Affirming Vaginoplasty (RPGAV) uses pedicled flaps of pelvic peritoneum to form the proximal neovagina. Early reports of peritoneal vaginoplasty suggested potential for "self-lubrication"; however, long-term maintenance of fluid production remains uncertain.
View Article and Find Full Text PDFWorld J Clin Oncol
August 2025
Division of Gastroenterologic Surgery, Department of Surgery, Tohoku Medical and Pharmaceutical University, Sendai 983-8536, Miyagi, Japan.
Appendiceal mucinous neoplasms (AMNs) are rare tumors originating from mucin-producing epithelial cells of the appendix. They can exhibit both benign and malignant behavior. They are often incidentally discovered during appendectomy.
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