Related Experiment Video
Updated: May 16, 2026

Chronic Salmonella Infection Induced Intestinal Fibrosis
Published on: September 22, 2019
Clinical diagnostic clues in Crohn's disease: a 41-year experience
C Quintana1, L Galleguillos, E Benavides
1Facultad de Medicina, Pontificia Universidad Catolica de Chile, 8330024 Santiago, Chile ; Facultad de Medicina, Universidad de los Andes, 7620001 Santiago, Chile.
Insights
Diagnosing Crohn's disease early is challenging due to its confusion with other gastrointestinal conditions. This study identifies key clinical features for accurate early Crohn's disease diagnosis.
Area of Science:
- Gastroenterology
- Internal Medicine
- Clinical Diagnostics
Background:
- Diagnosing Crohn's disease (CD) in its early stages presents significant challenges.
- CD is often misdiagnosed as Irritable Bowel Syndrome (IBS), ulcerative colitis, infectious colitis, or celiac disease.
Purpose of the Study:
- To identify the most relevant clinical features for establishing a clear concept of Crohn's disease.
- To determine if an early diagnosis of Crohn's disease is possible with high certainty using only clinical data.
Main Methods:
- Retrospective analysis of clinical experience from 1963 to 2004 at Pontificia Universidad Catolica (PUC) Clinical Hospital.
- Characterization of predominant clinical manifestations associated with Crohn's disease.
Main Results:
- Key clinical features of Crohn's disease include persistent abdominal pain (worse after eating), diarrhea, palpable abdominal masses, and anal lesions.
- Additional digestive and non-digestive symptoms were also noted.
Conclusions:
- Accurate early diagnosis of Crohn's disease remains difficult, often requiring differentiation from other gastrointestinal disorders.
- Identifying specific clinical features is crucial for improving early diagnostic certainty in Crohn's disease, particularly in resource-limited settings.
Abstract:
Determining the diagnosis of Crohn's disease has been highly difficult mainly during the first years of this study carried out at the Pontificia Universidad Catolica (PUC) Clinical Hospital. For instance, it has been frequently confused with Irritable bowel syndrome and sometimes misdiagnosed as ulcerative colitis, infectious colitis or enterocolitis, intestinal lymphoma, or coeliac disease. Consequently, it seems advisable to characterize what the most relevant clinical features are, in order to establish a clear concept of Crohn's disease. This difficulty may still be a problem at other medical centers in developing countries. Thus, sharing this information may contribute to a better understanding of this disease. Based on the clinical experience gained between 1963 and 2004 and reported herein, the main clinical characteristics of the disease are long-lasting day and night abdominal pain, which becomes more intense after eating and diarrhoea, sometimes associated to a mass in the abdomen, anal lesions, and other additional digestive and nondigestive clinical features. Nevertheless, the main aim of this work has been the following: is it possible to make, in an early stage, the diagnosis of Crohn's disease with a high degree of certainty exclusively with clinical data?
Related Concept Videos
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
Inflammatory Bowel Disease III: Crohn's Disease
Inflammatory Bowel Disease IV: Clinical Manifestations
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Inflammatory Bowel Disease I: Introduction

