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Updated: Aug 18, 2026

The ex vivo Isolated Skeletal Microvessel Preparation for Investigation of Vascular Reactivity
Published on: April 28, 2012
Insights
Diagnosing vasculitis requires integrating biopsy results with clinical, physical, and angiographic findings. Histopathology is crucial for definitive diagnosis due to non-specific clinical features of vasculitic syndromes.
Area of Science:
- Pathology
- Rheumatology
- Internal Medicine
Background:
- Vasculitis presents diagnostic and management challenges.
- Biopsy diagnosis alone is insufficient for patient management.
- Definitive diagnosis requires correlating histology with clinical, physical, and angiographic data.
Purpose of the Study:
- To review and update key systemic vasculitides.
- To highlight the importance of histopathology in vasculitis diagnosis.
- To emphasize the integration of diagnostic modalities.
Main Methods:
- Review of important systemic vasculitides.
- Discussion of diagnostic criteria and challenges.
- Emphasis on histopathologic examination.
Main Results:
- Systemic vasculitides reviewed include polyarteritis nodosa, microscopic polyangiitis, cutaneous leukocytoclastic vasculitis, Wegener's granulomatosis, giant-cell vasculitides, localized vasculitis, and angiocentric lymphomas.
- Histologic examination is definitive for diagnosis.
- Diagnostic accuracy depends on pathologist expertise, tissue selection, and lesion characteristics.
Conclusions:
- Accurate vasculitis diagnosis relies on a multidisciplinary approach.
- Histopathology is essential but must be interpreted in clinical context.
- Understanding specific vasculitic syndromes aids in diagnosis and management.
Abstract:
The vasculitides commonly create diagnostic and management problems, and a biopsy diagnosis of vasculitis usually does not stand alone in the proper medical management of a patient. Indeed, a conclusive diagnosis usually cannot be made without correlation with the patient's clinical history, physical findings, and/or angiographic findings. Nonetheless, a definitive diagnosis depends on histologic examination because few vasculitic syndromes have specific clinical and laboratory findings. Moreover, the histopathologic diagnosis depends on pathologist experience, tissue selection, sample size, chronologic age of the biopsied lesion(s), and effects of prior treatment. In this issue of Seminars in Diagnostic Pathology the important systemic vasculities are reviewed and updated. These include: polyarteritis nodosa, microscopic polyangiitis (microscopic polyarteritis), cutaneous leukocytoclastic vasculitis, Wegener's granulomatosis, giant-cell vasculitides, localized vasculitis, and angiocentric lymphomas (lymphomatous vasculitis).
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