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Current practice and innovations in diagnosing perianal fistulizing Crohn's disease (pfCD): a narrative review
E Anand1,2, T Pelly3, S Joshi4,3
1St Mark's The National Bowel Hospital, Central Middlesex, Acton Lane, London, UK. era24@ic.ac.uk.
Insights
Diagnosing perianal fistulizing Crohn's disease (pfCD) requires more than clinical exams. Advanced imaging like MRI and new biomarkers are crucial for accurate diagnosis and better outcomes in Crohn's disease patients.
Area of Science:
- Gastroenterology
- Radiology
- Immunology
Background:
- Perianal fistulizing Crohn's disease (pfCD) is a severe Crohn's disease (CD) complication causing significant morbidity.
- Clinical examination alone is insufficient for complex pfCD, risking complications and treatment failure.
- The chronic, relapsing nature of CD necessitates regular assessment, including advanced imaging.
Purpose of the Study:
- To review current diagnostic practices for pfCD.
- To highlight recent advancements in imaging and biomarkers for pfCD.
- To discuss the diagnosis of isolated perianal Crohn's disease.
Main Methods:
- Narrative review of current literature and practices.
- Analysis of clinical examination techniques and assessment tools.
- Evaluation of magnetic resonance imaging (MRI) and emerging diagnostic innovations.
Main Results:
- Clinical assessment is limited in complex pfCD cases.
- Magnetic resonance imaging (MRI) is essential for accurate diagnosis and monitoring.
- Innovations in imaging and biomarkers are improving diagnostic accuracy and timeliness.
- Specific diagnostic criteria for isolated perianal Crohn's disease are being developed.
Conclusions:
- Accurate diagnosis of pfCD relies on a combination of clinical evaluation and advanced imaging.
- Technological advancements are enhancing the early and precise detection of pfCD.
- Improved diagnostic strategies are vital for managing this severe manifestation of Crohn's disease and improving patient outcomes.
Abstract:
Perianal fistulizing Crohn's disease (pfCD) represents a severe manifestation of Crohn's disease (CD) that often leads to significant morbidity. Clinical examination alone of perianal fistulae is unlikely to be sufficient in the context of complex pfCD, as patients are likely to have complex disease and are more likely to experience complications, treatment failure, and recurrent disease. Furthermore, the relapsing-remitting nature of Crohn's disease and our limited understanding of the pathogenesis of this potentially destructive disease necessitate regular examination and radiological assessment, often in the form of magnetic resonance imaging (MRI). Recent advancements in diagnostic techniques have enhanced the accuracy and timeliness of pfCD diagnosis, facilitating better patient outcomes. A growing appreciation of isolated perianal Crohn's disease has prompted a recent attempt to develop consensus recommendations on diagnosing and treating this group of patients who would previously not have been offered CD medications. This narrative review aims to summarize current practice and the latest developments in the diagnosis of pfCD, highlighting: 1. Clinical examination and assessment tools 2. Current imaging practices 3. Innovations in imaging and biomarkers 4. The diagnosis of isolated perianal Crohn's disease.
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