Contents

SynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyReferences

View all Images (56)

Behçet syndrome in Adult
See also in: Anogenital,Oral Mucosal Lesion
Other Resources UpToDate PubMed

Behçet syndrome in Adult

See also in: Anogenital,Oral Mucosal Lesion
Contributors: Connie Zhong MSc, Christine S. Ahn MD, FAAD, William W. Huang MD, MPH, FAAD, Susan Burgin MD
Other Resources UpToDate PubMed

Synopsis

Behçet disease, or Behçet syndrome, is a chronic, relapsing, inflammatory disorder of unknown etiology. It is a multisystem disease characterized by oropharyngeal and genital ulcers and ocular involvement, and there may be vascular, articular, gastrointestinal, neurologic, urogenital, pulmonary, and cardiac findings as well. In genetically predisposed individuals, it may be triggered by infectious agents such as herpes simplex 1 (HSV-1) or Streptococcus; histamine-releasing foods such as citrus fruits, cheese, or nuts; poor oral hygiene; or stress; or triggers may not be identified. Circulating immune complexes and neutrophils are part of the pathogenesis, leading to vascular injury.

Behçet disease is relatively uncommon and is more prevalent in Japan and Middle Eastern and Mediterranean countries. While Behçet disease has an equal sex distribution overall, there is male predominance in Middle Eastern and Mediterranean patients and female predominance in Japan and Korea. Severe disease is more commonly seen in males. The onset of symptoms typically occurs during the third or fourth decades of life. Rarely, it can present during childhood, and usually in children with a positive family history of the syndrome. Behçet disease is strongly associated with the HLA-B51 allele, which is present in more than 80% of Asian patients with Behçet disease.

Clinically, Behçet disease is characterized by recurrent oropharyngeal and genital ulcers and ocular involvement. Oral ulcers are the initial presenting sign in up to 80% of patients and can lead to scarring, dysphagia, and odynophagia. Genital ulcers present similarly to oropharyngeal lesions; they tend to recur less frequently but are more prone to scar formation. Potential complications include fistulae in women and epididymo-orchitis in men.

Ocular disease, seen more often in men, is characterized by episodes of bilateral, nongranulomatous anterior and/or posterior uveitis. It usually appears 2-3 years after the onset of oral and/or genital ulcers, although it can be the initial manifestation in up to 20% of cases. Approximately 1 in 4 patients with ocular disease develop blindness.

Other cutaneous manifestations include erythema nodosum-like lesions, folliculitis-like lesions, erythema multiforme-like lesions, Sweet syndrome-like lesions, subcutaneous thrombophlebitis, and palpable purpura. Nonspecific cutaneous ulcers have been observed in 3% of patients. They occur more frequently in children and tend to occur on the extremities, breasts, and interdigital and inguinal regions.  

Other systemic manifestations include:
  • Musculoskeletal – arthralgia; nonerosive mono- or polyarthritis in 45%-60% of patients, affecting knees, ankles, hips, elbows, and wrists
  • Neurologic – cerebellar dysfunction, cranial nerve palsies, cerebral venous thrombosis, arterial vasculitis, aseptic meningitis, encephalitis
  • Vascular – deep vein thromboses, pulmonary artery aneurysms
  • Cardiac – pericarditis, myocarditis, mitral valve prolapse, intracardiac thrombosis, endomyocardial fibrosis, cardiomyopathy, coronary artery lesions
  • Gastrointestinal – mucosal inflammation and ulceration (particularly ileocecal region); inflammatory bowel disease-like symptoms (eg, diarrhea, abdominal pain, gastrointestinal bleeding)
Behçet disease can have significant morbidity and mortality, with major causes including neurologic, vascular, and gastrointestinal involvement. Patients may experience remission, however, after years of active disease.

Related to Behçet syndrome is Hughes-Stovin syndrome, in which patients don't have the clinical criteria for Behçet syndrome but have a vasculitis and may have pulmonary aneurysm.

Codes

ICD10CM:
M35.2 – Behçet's disease

SNOMEDCT:
310701003 – Behcet's syndrome

Look For

Subscription Required

Diagnostic Pearls

Subscription Required

Differential Diagnosis & Pitfalls

To perform a comparison, select diagnoses from the classic differential

Subscription Required

Best Tests

Subscription Required

Management Pearls

Subscription Required

Therapy

Subscription Required

References

Subscription Required

Last Reviewed:04/15/2019
Last Updated:04/03/2024
Copyright © 2024 VisualDx®. All rights reserved.
Behçet syndrome in Adult
See also in: Anogenital,Oral Mucosal Lesion
A medical illustration showing key findings of Behçet syndrome : Abdominal pain, Painful oral ulcers, Arthralgia, Recurring
Clinical image of Behçet syndrome - imageId=61375. Click to open in gallery.  caption: 'An erosion and a small ulcer on the tongue.'
An erosion and a small ulcer on the tongue.
Copyright © 2024 VisualDx®. All rights reserved.