Related Experiment Video
Updated: Jun 4, 2026

Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
Published on: August 26, 2025
Familial Mediterranean fever presenting with pulmonary embolism
Ximena D Ruiz1, Carlos M Gadea
1University of Connecticut Heath Center, Department of Medicine. 230 Farmington Avenue, Farmington, CT 06030-1235, USA. xruiz@resident.uchc.edu
Abstract:
Familial Mediterranean fever (FMF) is the autoinflammatory disease and hereditary periodic fever syndrome that most commonly affects people of Eastern Mediterranean origin. It is characterized by recurrent self-limited attacks of fever and serositis, with an increase in acute-phase reactant markers, and is transmitted in an autosomal recessive pattern. Inflammation shifts the hemostatic mechanisms favoring thrombosis. There are few reports of an increased risk of hypercoagulability in patients with FMF in the absence of amyloidosis and nephrotic syndrome. In this case report, we describe a 43-year-old Turkish patient who presented with right-sided pleuritic chest pain and pulmonary embolism. The patient described having prior similar attacks of serositis, but had never been diagnosed with FMF. Further workup revealed an increase in acute phase reactants, negative hypercoagulability studies and heterozygosity for the M694V mutation in the pyrin (MEFV) gene. We identified untreated FMF and chronic inflammation as his only risk factor for pulmonary embolism. With this case report, we support recent studies that have demonstrated that inflammation may lead to prothrombotic states in patients with FMF.
Insights
Familial Mediterranean fever (FMF), an autoinflammatory disease, can increase pulmonary embolism risk due to chronic inflammation. Early diagnosis and treatment are crucial for managing this hereditary periodic fever syndrome.
Area of Science:
- Rheumatology
- Genetics
- Pulmonology
Background:
- Familial Mediterranean fever (FMF) is an autoinflammatory disease characterized by recurrent fever and serositis.
- FMF is typically inherited in an autosomal recessive pattern and is most prevalent in Eastern Mediterranean populations.
- Inflammation in FMF can alter hemostatic mechanisms, potentially favoring thrombosis.
Observation:
- A 43-year-old Turkish patient presented with pleuritic chest pain and pulmonary embolism.
- The patient had a history of serositis attacks but no prior FMF diagnosis.
- Workup revealed elevated acute-phase reactants and heterozygosity for the M694V MEFV gene mutation.
Findings:
- The patient's pulmonary embolism was linked to untreated FMF and chronic inflammation.
- Hypercoagulability studies were negative, suggesting inflammation as the primary prothrombotic driver.
- This case supports the association between FMF-related inflammation and increased thrombotic risk.
Implications:
- Highlights the potential for prothrombotic states in FMF patients, even without amyloidosis or nephrotic syndrome.
- Emphasizes the importance of considering FMF in patients with unexplained serositis and thrombotic events.
- Suggests that managing chronic inflammation in FMF may be key to preventing thromboembolic complications.
Related Concept Videos
Pulmonary Embolism I: Introduction
Pulmonary Embolism I: Introduction
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Rocky Mountain Spotted Fever
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Myocarditis II: Clinical Features and Diagnostic Tests