Lipomatous hypertrophy of the interatrial septum with cutaneous lipomatosis

Shin Takayama, Hiroyasu Sukekawa, Takanori Arimoto, Eiichiro Ikeno, Tsunehiro Komatu, Hiroya Rikimaru, Takashi Hakamatsuka, Tohru Takahashi, Masayuki Sugawara

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


A mass was identified in the atrial septum by clinical imaging in a patient who had multiple large lipomas of the skin. Multislice computed tomography and magnetic resonance imaging indicated that the interatrial mass was a fatty infiltration. In order to discriminate the myocardial lesion from myxoma and other benign conditions and malignant tumors, percutaneous transvenous biopsy was performed. Microscopic examination demonstrated the cardiac mass to be lipomatous hypertrophy of the interatrial septum (LHIS), and the skin lesions, simple lipomas. The LHIS is itself a rare condition, and its development in patients having multiple ponderous lipomas, or lipomatosis, could not be found in a previous report. This may be the first published case of LHIS, which likely represents cardiac involvement of lipomatosis.

Original languageEnglish
Pages (from-to)986-989
Number of pages4
JournalCirculation Journal
Issue number6
Publication statusPublished - 2007
Externally publishedYes


  • Cardiac tumor
  • Cutaneous lipoma
  • Interatrial septum
  • Lipomatosis
  • Pathology

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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