Despite being a rare phenomenon, pericardial hydatid cysts present unique diagnostic challenges and require a multimodality imaging as well as a multidisciplinary approach for a curative management. The authors here present a case of a middle aged man who was referred to them for management of new onset atrial flutter with mitral regurgitation.

A pericardial cyst is a rare and benign lesion, most commonly of congenital origin. A female patient of 35 years old was admitted to the emergency department of our institution, for non-irradiating thoracic pain associated with a dyspnea. A CT-Scan was performed, and a pericardial cyst of a large size was found. A surgical procedure through thoracoscopy was performed to enhance the symptomatology of the patient and to eradicate the cyst. The diagnosis of these lesions is most commonly sporadic after a radiography performed for other causes. Most of the time these lesions are asymptomatic (although thoracic pains, chronic cough and dyspnea amongst others may be observed). In case of suspicion (related to radiography or an eventual symptomatology) a thoracic scan is performed with a contrasting product for the confirmation and localization of the cyst. In addition to the diagnosis and the localization, it is best to perform a transthoracic ultrasound which enables a differential diagnosis with other lesions (lipoma, aortic aneurysm, solid tumour, and a left ventricle aneurysm etc.). A surgical treatment is recommended in symptomatic cases. In non-symptomatic cases, a transthoracic ultrasound is recommended.
Le kyste péricardique est une lésion rare, bénigne et le plus souvent congénitale. Nous rapportons le cas d’une patiente de 35 ans admise aux urgences de notre institution dans le cadre d’une douleur thoracique associée à une dyspnée. La réalisation d’un scanner thoracique permet de mettre en évidence un kyste péricardique d’une grande taille. Une intervention par chirurgie thoracoscopique vidéo-assistée a été réalisée afin de mettre à plat le kyste et, ainsi, d’améliorer la symptomatologie de la patiente. Le diagnostic de ces lésions est le plus souvent fait de manière fortuite, sur une radiographie réalisée pour une autre raison. Il s’agit généralement de lésions asymptomatiques bien que des douleurs thoraciques, une toux chronique ou encore une dyspnée sont retrouvées dans certains cas. En cas de suspicion, un scanner thoracique avec produit de contraste permet de confirmer et localiser précisément la lésion. Une échographie trans-thoracique permet, en plus, de réaliser un diagnostic différentiel avec d’autres lésions (lipome, anévrysme aortique, tumeur solide, anévrysme du ventricule gauche, etc…). En cas de lésion symptomatique, une prise en charge chirurgicale est recommandée. Dans les cas asymptomatiques, un suivi par échographie trans-thoracique est recommandé.

Mediastinal parathyroid cysts (MPCs) are extremely rare, benign lesions arising from the parathyroid glands and residing within the thoracic cavity. This study aims to advance understanding of MPC, emphasizing accurate diagnosis and management approaches for this rare condition. A 46-year-old woman presented with dysphagia for one week. Blood tests revealed elevated parathyroid hormone (PTH) (112.8 pg/mL) and normal serum calcium (9.54 mg/dL). Ultrasonography identified a large, well-defined cystic nodule measuring 46 × 30 × 25 mm, extending retro-sternally in the right upper third of the chest. A subsequent high-resolution computed tomography scan of the chest revealed a large space-occupying lesion (47 × 43 × 31 mm) in the superior mediastinum, near the esophagus, suggesting an esophageal duplication cyst or, less likely, a bronchogenic cyst. Video-assisted thoracoscopic surgery (VATS) was performed, and the entire cyst was excised, confirmed histologically as a mediastinal parathyroid cyst. Mediastinal involvement of PCs poses diagnostic challenges due to their rarity and diverse clinical presentations. Surgical excision is necessary for symptomatic cases, with VATS emerging as a favorable approach.

BACKGROUND: Primary cardiac tumors, while rare, present significant clinical challenges due to their diverse pathology and presentation. Lung cancer frequently metastasizes to the heart; however, cases involving primary cardiac tumors of different origins alongside primary lung cancer are exceedingly rare in the literature.
METHODS: We report the case of a 53-year-old female who presented with hemoptysis and was subsequently diagnosed with a left atrial myxoma, pulmonary squamous cell carcinoma, and a thymic cyst. This coexistence of multiple non-homologous tumors in a single patient is exceedingly rare.
CONCLUSIONS: This case underscores the complexity of diagnosing and managing patients with multiple distinct tumors. The simultaneous occurrence of a primary cardiac myxoma, pulmonary squamous cell carcinoma, and thymic cyst is unprecedented, providing valuable insights for future clinical practice.

Introduction Pericardial cysts (PCs) are infrequent, non-malignant, and congenital abnormalities. The identification and treatment of PCs remain a significant challenge, with limited research on surgical management. Methods We performed a retrospective study of patients with PCs who underwent surgical intervention at the First Affiliated Hospital of Xinjiang Medical University from February 2002 to December 2022. Results A total of 55 patients underwent surgery due to PCs during the study period. Thirty-one were females and 24 were males. The average age of the patients was 44.7 ± 12.9 (six to 63 years old). PCs were located in the right hemithorax in 50 (90.9%) patients and left hemithorax in five (9.1%) patients. Approach methods were video-assisted thoracoscopic surgery (VATS) in 43 (78.2%) cases; thoracotomy in 11 (20%) cases, and median sternotomy in one (1.8%) cases. The average postoperative hospitalization period was 5.6 days (two to 14 days). Three patients developed postoperative complications (two pleural effusion, one pneumonia), whereas no mortality was observed in any patient due to the operation. Forty-one patients (74.5%) were followed up for three months to eight years postoperatively, during which no recurrent cysts were detected. Conclusion In this single-center retrospective study, we demonstrated that pericardial cyst cure is an appropriate operation according to cyst characteristics. VATS has been shown to be highly effective and safe in patients with PCs, offering the advantage of reducing postoperative morbidity efficiently.

UNASSIGNED: Pericardial cysts are infrequent lesions. Most of these are asymptomatic and incidental findings during investigations for unrelated conditions. When they are symptomatic, they demonstrate most of the time a benign clinical course. Yet, treatment is sometimes necessary. Besides a (temporary) treatment as percutaneous aspiration, there is surgery as a definite treatment. The aim of the paper is to motivate the safety and efficacy of uniportal video assisted thoracoscopy (UVATS) for the excision of (giant) pericardial cysts and describe their (peri-)operative technique.
UNASSIGNED: In this retrospective, single center-based case series, we report all cases with a pericardial cyst who underwent a surgical excision by uniportal VATS (UVATS) between March 2022 and April 2023. Detailed patient characteristics, operation details, hospital length of stay and follow-up data were collected.
UNASSIGNED: A total of 4 patients underwent excision of a pericardial cyst by UVATS. The follow-up ranged from 10 to 20 months. The mean diameter of the pericardial cyst was 124 mm. Median procedure time was 94 min. No per- and postoperative complications occurred. The median length of postoperative hospital stay was 2 days. All patients showed a clinically relevant improvement of the pre-operative symptoms.
UNASSIGNED: Uniportal VATS excision for pericardial cysts is a safe and effective surgical procedure with good outcomes on symptom relief. Though, future comparative studies are urged to elucidate its value among other treatment options.

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Neck masses are frequently seen in children. The differential diagnosis includes infectious, congenital and neoplastic lesions. We report a case of rare thymic neck mass in a boy in his middle childhood presented with a history of a left anterolateral neck mass not associated with fever, dysphagia or shortness of breath. The radiographic evaluation showed a picture of a thymopharyngeal duct cyst. Thymic remnant and thymopharyngeal duct cyst are caused by the failure of obliteration and might appear as a lateral neck mass in children. The most effective treatment for a thymopharyngeal duct cyst is total surgical excision. This particular case highlights the importance for clinicians to have a high index of suspicion for a broad differential diagnosis when evaluating paediatric patients who present with neck mass. Additionally, we emphasise the importance of consistently considering thymopharyngeal cyst as differential diagnosis.

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