Related Experiment Video
Updated: Oct 4, 2026

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
Published on: May 16, 2025
Lhermitte-Duclos disease is a clinical manifestation of Cowden's syndrome
N Vantomme1, F Van Calenbergh, J Goffin
1Department of Neurosurgery, University Hospital Gasthuisberg, Leuven, Belgium.
Insights
Lhermitte-Duclos disease (LDD) is often linked to Cowden
Area of Science:
- Neurology
- Genetics
- Oncology
Background:
- Lhermitte-Duclos disease (LDD) involves hamartomatous overgrowth of cerebellar cells.
- Cowden's syndrome (CS) is an autosomal dominant disorder with multiple hamartomas and neoplastic lesions.
- Increasing reports suggest an association between LDD and CS.
Purpose of the Study:
- To investigate the association between LDD and Cowden's syndrome.
- To identify clinical findings suggestive of CS in patients with LDD.
Main Methods:
- Retrospective review of medical records and imaging studies.
- Analysis of six patients diagnosed with LDD.
- Screening for additional symptoms indicative of CS.
Main Results:
- Five out of six LDD patients exhibited mucocutaneous lesions, acral keratosis, thyroid adenoma, fibrocystic disease, ovarian cysts, intestinal polyposis, or arteriovenous malformation.
- The youngest patient (5-year-old boy) showed no cutaneous or other signs of CS.
- Clinical findings strongly suggest a link between LDD and CS.
Conclusions:
- LDD may represent a neurological manifestation of Cowden's syndrome.
- Comprehensive dermatological and systemic screening is crucial for LDD patients.
- Early detection of CS-related lesions can prevent malignant transformation.
Background:
Lhermitte-Duclos disease (LDD) is a hamartomatous overgrowth of cerebellar ganglion cells, which replace granular cells and Purkinje cells. In recent years several cases involving the association between LDD and Cowden's syndrome (CS), an autosomal dominant condition characterized by multiple hamartomas and neoplastic lesions in skin and internal organs, have been reported.
Methods:
We reviewed the medical records and imaging studies of six patients with LDD who were treated at our institution, and we looked at other possible symptoms of CS.
Results:
Other clinical findings suggestive of CS were apparent in five patients: These included mucocutaneous lesions, acral keratosis, thyroid adenoma, fibrocystic disease, ovarian cyst, intestinal polyposis, and arteriovenous malformation. Only in the youngest patient, a 5-year-old boy, were no cutaneous or other signs found, despite extensive clinical and ultrasound examination.
Conclusion:
Our observations strengthen the hypothesis that LDD is a neurological manifestation of CS. Patients with LDD should receive a thorough dermatological and systemic screening, because some of the lesions (breast, etc...) can develop into malignant tumors.
Related Concept Videos
Huntington Disease l: Introduction
Cushing Syndrome II: Pathophysiology
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...
Pleiotropy
Cushing Syndrome I: Introduction
Inflammatory Bowel Disease IV: Clinical Manifestations
