Rosai-Dorfman disease (RDD) is a rare, multisystemic, histiocytic disorder that usually presents with painless cervical lymphadenopathy. We describe a case of constrictive effusive pericarditis with congestive cardiac failure in a six-year-old child as an initial presentation of RDD. The child underwent pericardiectomy and was treated with steroids, following which the symptoms resolved entirely. While tuberculosis accounts for the majority of cases presenting with constrictive pericarditis in developing countries, the presentation of RDD can be easily missed if not kept in mind as a possibility. This case report documents the unique presentation of a rare disease.

[This corrects the article DOI: 10.3389/fped.2023.1215928.].

Constrictive pericarditis is a chronic inflammatory process that can lead to heart failure if not diagnosed and treated correctly. Although Epstein-Barr virus (EBV)-related pericarditis is a very rare condition, it should still be considered for a differential diagnosis. We report the case of an 18-year-old male, who was surgically treated for constrictive pericarditis, in which in situ hybridization to Epstein-Barr virus-encoded RNA (EBER) probe of the excised pericardium led to the subsequent etiological diagnosis of chronic pericarditis caused by EBV.

BACKGROUND: Effusive-constrictive pericarditis (ECP) is an uncommon pericardial syndrome. Careful echocardiographic examination may provide helpful information not only for diagnosing but also for managing ECP. ECP has various etiologies; however, Pseudomonas aeruginosa (P. aeruginosa) infection has not been reported as a cause to date. Herein, we present a rare case of ECP caused by P. aeruginosa infection, which was followed up using echocardiography.
METHODS: A 30-year-old man was admitted to our hospital with a 2-mo history of cough, dyspnea, bloating, palpitations, and lower-extremity edema. The patient was initially diagnosed with pericardial effusion by transthoracic echocardiography. Drainage of pericardial effusion was performed to relieve the clinical symptoms. A follow-up echocardiogram showed that the pericardial effusion had decreased; however, the right atrial pressure continued to increase, and signs of constrictive pericarditis were observed upon a more comprehensive inspection. Therefore, the diagnosis of ECP was established based on the comprehensive pre- and post-pericardiocentesis echocardiographic findings. An urgent pericardectomy was subsequently performed, which significantly relieved the patient\'s clinical symptoms, and the signs of pericardial constriction on echocardiography improved. Pericardial effusion and pericardial culture showed growth of P. aeruginosa.
CONCLUSIONS: ECP induced by P. aeruginosa infection remains a rare disease. The presence of echocardiographic features of constrictive pericarditis after pericardiocentesis therapy is highly indicative of ECP.

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In rheumatoid arthritis, pericarditis is commonly asymptomatic, but rarely, it progresses to a morbid complication, like cardiac tamponade or restrictive pericarditis. Current studies have indicated that conventional drugs have limited ability to reverse these lethal conditions. To date, invasive surgical measures remain the only definitive therapy for patients who are unresponsive to drugs. Recently, anti-tumor necrosis factor-α and anti-interleukin-1 antibody-based drugs have shown limited success. Consequently, given the importance of pericarditis, we need new treatment methods. Here, we describe a patient with rheumatoid arthritis and effusive pericarditis, which progressed to life-threatening cardiac tamponade. The patient responded very well to rituximab. Thus, rituximab represents a potential new therapy for this rarely treated complication of rheumatoid arthritis.

A 52-year-old female developed acute idiopathic pericarditis, which was complicated with tamponade. Constrictive physiology persisted after pericardiocentesis, and effusive-constrictive pericarditis (ECP) was diagnosed. Constrictive physiology improved in 10 days with anti-inflammatory therapy. This case was remarkable because it showed that ECP may present in an acute and reversible form. (Level of Difficulty: Beginner.).

Primary malignant pericardial mesothelioma is a rare cardiac neoplasm. The authors evaluated risk factors, clinical presentation, and outcomes by reviewing all biopsy-confirmed cases at one institution. The use of multimodality imaging, detailed hemodynamic assessment for the presence of an effusive-constrictive profile, and cytology evaluation can support the diagnosis. (Level of Difficulty: Advanced.).

This report describes a case of pericardial effusion and tamponade that appeared several weeks after WATCHMAN device (Boston Scientific, Natick, Massachusetts) placement for left atrial appendage occlusion. The report also discusses the likely etiology and clinical management of this uncommon condition. (Level of Difficulty: Intermediate.).