Project description:Primary cardiac sarcoma is a rare type of intracardiac mass. This report describes a patient with atrial flutter who had a new right atrial mass incidentally discovered on transesophageal echocardiography. A thrombus was suspected based on radiographic appearance, but there was minimal change with anticoagulation. The mass was resected and found to be an undifferentiated pleomorphic cardiac sarcoma, an uncommon sub-type within the already rare category of primary cardiac neoplasms. This report highlights the importance of considering primary malignancy and thoroughly correlating radiographic and clinical evidence during the diagnostic workup of patients with intracardiac masses.

| S-EPMC10178659 | biostudies-literature

Epidermoid cyst in the atrial septum: a rare entity with unique imaging features.

Project description: Not available

| S-EPMC9263153 | biostudies-literature

Distal Phalanx Intraosseous Epidermoid Cyst.

Project description:An intraosseous epidermal cyst is a benign cystic lesion that occurs in the bones. It is assumed to be caused by congenital causes or trauma, and because the cyst forms in the soft tissue surrounding the bone, it can lead to bone loss. Intraosseous epidermal cysts have a well-defined radiolucent lesion with cortical extension on radiography. Due to clinical and radiological signs being similar, it is vital to distinguish an intraosseous epidermal cyst from other diseases that develop at the distal phalanx. A rare example of intraosseous epidermal cysts at the distal phalanx is reported. We describe the clinical, radiological, and pathologic aspect of this lesion, as well as our current therapeutic strategy.

| S-EPMC10079340 | biostudies-literature

A case of intradiploic epidermoid cyst.

Project description: Not available

| S-EPMC10423391 | biostudies-literature

Right atrial myxoma: Unusual location; uncommon association.

Project description:We are presenting a case of the right atrial myxoma found in a case of rheumatic heart disease. During transthoracic echocardiography for the evaluation of a suspected rheumatic valvular heart disease, a diagnosis of severe mitral stenosis with severe mitral regurgitation with the right atrial thrombus was made. On transesophageal echocardiography, a pedunculated mass in the right atrium was confirmed. In the course of surgery, it was found that there is a tumor originating from the right atrial appendage (RAA) which was confused with clot on echocardiography. Rheumatic heart disease and myxomas have different etiopathogenesis, and this coexistence has not been reported. Further, right atrial myxoma arising out of RAA is also being reported for the first time.

| S-EPMC6206801 | biostudies-literature

An unusual presentation of prominent crista terminalis mimicking a right atrial mass: a case report.

Project description:BackgroundThe crista terminalis is a variation of normal anatomical structure within the right atrium which may be misdiagnosed with an abnormal atrial mass normally visualized in the standard views on the transthoracic echocardiogram.Case presentationIn this case presentation, we demonstrated a rare case report describing the accidental discovery of a right atrial mass-like structure in a 54-year old Asian man without physical discomfort during an echocardiographic examination. These findings naturally caused some concern as the differential diagnosis such as right atrial myxoma or thrombus and further examination were organized. The subsequent positron emission tomography/magnetic resonance imaging (PET/MRI) differentiated a true right atrial mass from a strip extending into the atrium in accordance with prominent crista terminalis.ConclusionA preferable understanding of the complex anatomy and PET/MRI appearance of a prominent crista terminalis will minimize the misdiagnosis of this structure and avoiding unnecessary anxiety and more invasive examinations.

| S-EPMC6223080 | biostudies-literature

Right atrial hydatid cyst prolapsing into the tricuspid valve.

Project description: Not available

| S-EPMC548256 | biostudies-literature

The evanescent right atrial mass.

Project description:An unusual cause of pulmonary emboli from an evanescent right atrial mass is described in this case report. The systematic approach from initial presentation to a definite diagnosis of a rare condition is described.

| S-EPMC4593804 | biostudies-literature

Hydatid cyst of the pericardium mimicking a right atrial myxoma.

Project description:The hydatid cyst of the pericardium is a rare pathology; its clinical presentation is variable. It can reveal straightaway at the stage of life-threatening complications. Only a few cases of isolated pericardial hydatid cysts have been reported. Echocardiography, computed tomography, and magnetic resonance imaging are important diagnostic tools for the diagnosis of echinococcosis, and surgery remains the treatment of choice. Herein, we report a rare case of pericardial hydatid cyst who presented to our emergency department with complaints of palpitations, chest pain, and shortness of breath.

| S-EPMC7525667 | biostudies-literature

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