Related Experiment Video
Updated: Jul 30, 2026

Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
Published on: December 8, 2014
Crohn's disease associated with cyclic neutropenia
R D Lamport1, S Katz, D Eskreis
1Department of Medicine, Long Island Jewish Medical Center, New Hyde Park, New York.
This case study details a rare instance of Crohn's disease co-occurring with cyclic neutropenia. The patient experienced no infections, and Crohn's disease appeared to worsen neutropenia.
Area of Science:
- Gastroenterology
- Hematology
- Immunology
Background:
- Neutropenia, a condition of low white blood cell count, is rarely associated with Crohn's disease independently of medication.
- Cyclic neutropenia is characterized by periodic drops in neutrophil count, increasing infection risk.
Observation:
- A unique case of Crohn's disease (CD) associated with cyclic neutropenia (CN) is presented, observed over a decade.
- The patient exhibited no recurrent bacterial infections or other typical sequelae of neutropenia.
- No direct correlation was found between white blood cell cycling and CD exacerbations, though CD appeared to exacerbate neutropenia.
Findings:
- Cyclic neutropenia patterns in this patient became evident only during disease quiescence and after medication withdrawal.
- The interplay between Crohn's disease activity and cyclic neutropenia was complex, with the former potentially worsening the latter.
Implications:
- This case highlights the importance of considering neutropenia in Crohn's disease patients, even without apparent drug association.
- Understanding this rare association may inform clinical and therapeutic decisions, including surgical interventions and the use of medications with neutropenic potential.
- Further research into white blood cell abnormalities in Crohn's disease is warranted.
Related Concept Videos
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...
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents
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...
Cryptococcal Meningitis
Inflammatory Bowel Disease III: Crohn's Disease
Inflammatory Bowel Disease IV: Clinical Manifestations

