Primary cardiac lymphoma presenting as an atypical type of hypertrophic cardiomyopathy

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Abstract

Primary cardiac lymphoma (PCL) is a very rare malignancy although cardiac involvement with the disseminated disease is not uncommon. We present a case of a 43-year-old man with PCL that initially presented as marked thickening of all cardiac walls and was mistakenly diagnosed as an atypical type of hypertrophic cardiomyopathy. The diagnosis of PCL was made with a delay of 9 months after the initial presentation, when atypical lymphocytes staining positive for CD79a and CD20 were demonstrated in the rapidly growing mediastinal and neck mass. Anthracycline-based chemotherapy and anti-CD20 immunotherapy resulted in a remarkable reduction in cardiac wall thickness and mediastinal mass. The first lesson to be learnt from this case is that PCL can present as a diffuse infiltrative disease without a mass. The second lesson is that prompt exploratory thoracotomy should not be delayed when the diagnosis is elusive. Mini-Abstract Primary cardiac lymphoma (PCL) is a very rare malignancy, although cardiac involvement with the disseminated disease is not uncommon. We present a case of PCL that initially was mistakenly diagnosed as an atypical hypertrophic cardiomyopathy. In this case, the atypical radiological findings, and negative results of the pericardial fluid cytology and endomyocardial biopsy assessment, delayed the diagnosis of PCL. This case shows that PCL can present as a diffuse infiltrative disease, without the presence of a mass, and the importance of a prompt exploratory thoracotomy when diagnosis is elusive.

Original languageEnglish
JournalEchocardiography
Volume31
Issue number4
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Hypertrophic Cardiomyopathy
Lymphoma
Delayed Diagnosis
Thoracotomy
Anthracyclines
Immunotherapy
Cell Biology
Neoplasms
Neck
Lymphocytes
Staining and Labeling
Biopsy
Drug Therapy

Keywords

  • cardiac tumor
  • hypertrophic cardiomyopathy
  • mediastinal mass

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

Cite this

Primary cardiac lymphoma presenting as an atypical type of hypertrophic cardiomyopathy. / Kim, Dong Hyeok; Kim, Yong Hyun; Song, Woohyuk; Ahn, Jeong Cheon.

In: Echocardiography, Vol. 31, No. 4, 01.01.2014.

Research output: Contribution to journalArticle

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