Abstract
Introduction: Adult T-cell lymphoma (ATCL) is a rare T cell lymphoproliferative malignancy that typically presents with lymphadenopathy, hepatosplenomegaly, lytic lesions, hypercalcemia or skin lesions. Cardiac involvement is rare. Case presentation: A 66-year-old male with a history of chronic kidney disease and hypertension presented with dyspnea. Transthoracic echocardiography revealed a moderate pericardial effusion and a left ventricular ejection fraction of 45%. Further workup with MRI and transesophageal echocardiography found extensive circumferential pericardial thickening with enhancement and extensive mediastinal and hilar lymphadenopathy along with a mass along the course of the superior vena cava with extension of disease into the right atrium along the right atrial wall (Figure 1). Endobronchial biopsy of the mediastinal lymph nodes was positive for T-cell lymphoma. Chemotherapy was initiated; however, the patient decided to focus on comfort measures only. Discussion: Cardiac involvement in ATCL is rare and usually detected in postmortem autopsies. Incidence is unknown, and experience is limited to case reports. The largest case series to date found 16 patients who had antemortem diagnosis of symptomatic cardiac involvement of ATCL. The characteristic features included infiltration of the myocardium, pericardial effusion, valvular lesions, and masses in the atrium, similar to what was seen in our patient. To our knowledge, there have been no reported cases of ATCL causing constriction. Prognosis is poor, with median survival of 5 months after development of symptoms (n = 15, range 0-120 months). Conclusion: The incidence of cardiac ATCL is unknown, but it is an extremely rare occurrence. It can present with a wide variety of cardiac involvement, including constriction. The prognosis of cardiac ATCL remains poor.
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