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Primary cardiac tumors: a clinicopathologic evaluation of four cases
Charlotte Winther1, Vera Timmermans-Wielenga, Søren Daugaard
1Department of Pathology, Rigshospitalet, Copenhagen, Denmark. charlottewinther@dadlnet.dk
Introduction:
We report the clinical, pathological, and immunohistochemical features of four primary malignant cardiac tumors identified at the Department of Pathology, Rigshospitalet, Denmark. A panel of immunohistochemical markers for classification is proposed.
Methods:
Between 2000 and 2008, four patients with malignant cardiac tumors were treated at our hospital. We retrospectively reviewed the medical records and evaluated the patient characteristics and treatment.
Results:
Three patients presented with severe dyspnea; one patient presented with chest pain. Transthoracic echocardiography demonstrated, in all four cases, abnormal masses in the atria. The cases were, based on morphological features and immunoprofile, classified as myogenic sarcoma (two cases), undifferentiated pleomorphic sarcoma, and leiomyosarcoma. Three of the patients received orthotopic heart transplantation. One patient survived 6.5 years after the diagnosis, and two patients are still alive 2 and 3 years after being diagnosed, respectively.
Conclusions:
All four cases were sarcomas. A limited number of immunohistochemical markers can be used in order to define a specific line of differentiation. In this small study, three of the patients were offered orthotopic heart transplantation, and the survival times were generally longer than in most series.
Insights
This study details four primary malignant cardiac tumors, classifying them as sarcomas using immunohistochemical markers. Orthotopic heart transplantation in three patients led to improved survival, suggesting its potential benefit for these rare heart cancers.
Area of Science:
- Cardiovascular Pathology
- Oncology
- Immunohistochemistry
Background:
- Primary malignant cardiac tumors are rare, posing diagnostic and therapeutic challenges.
- This study investigates four cases identified at Rigshospitalet, Denmark, between 2000 and 2008.
- A proposed panel of immunohistochemical markers aids in classifying these tumors.
Observation:
- Four patients with primary cardiac tumors were retrospectively analyzed.
- Clinical presentation included dyspnea and chest pain.
- Transthoracic echocardiography revealed atrial masses in all cases.
Findings:
- Morphological and immunoprofile analysis classified the tumors as myogenic sarcoma (2 cases), undifferentiated pleomorphic sarcoma, and leiomyosarcoma.
- All identified tumors were sarcomas.
- Orthotopic heart transplantation was performed in three patients.
Implications:
- Immunohistochemistry provides a reliable method for classifying primary cardiac sarcomas.
- Orthotopic heart transplantation may improve survival outcomes for select patients.
- Further research into rare cardiac malignancies is warranted to optimize treatment strategies.