alexa Lipomatous Hypertrophy of the Interatrial Septum (LHIS) | OMICS International
ISSN: 2329-6925
Journal of Vascular Medicine & Surgery
Make the best use of Scientific Research and information from our 700+ peer reviewed, Open Access Journals that operates with the help of 50,000+ Editorial Board Members and esteemed reviewers and 1000+ Scientific associations in Medical, Clinical, Pharmaceutical, Engineering, Technology and Management Fields.
Meet Inspiring Speakers and Experts at our 3000+ Global Conferenceseries Events with over 600+ Conferences, 1200+ Symposiums and 1200+ Workshops on
Medical, Pharma, Engineering, Science, Technology and Business

Lipomatous Hypertrophy of the Interatrial Septum (LHIS)

Mohamad El Hawari1* and Akash Joshi2

1Radiology resident Kansas University School of Medicine KUMC – Wichita, USA

2Clinical Assistant Professor Kansas University School of Medicine KUMC – Wichita, USA

*Corresponding Author:
Mohamad El Hawari
Radiology resident Kansas University
School of Medicine KUMC - Wichita
Tel: 3162503176
E-mail: [email protected]

Received Date: June 13, 2015 Accepted Date: July 04, 2015 Published Date: July 04, 2015

Citation: Hawari ME, Joshi A (2015) Lipomatous Hypertrophy of the Interatrial Septum (LHIS). J Vasc Med Surg S1:007. doi: 10.4172/2329-6925.S1-007

Copyright: © 2015 Hawari El M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Visit for more related articles at Journal of Vascular Medicine & Surgery

Keywords

Hypertrophy; Lipomatous; Septum

Description

A 72 year old female patient presented to the emergency with abdominal pain. Contrast enhanced CT scan of the abdomen and the pelvis was ordered [1]. The CT of the abdomen and pelvis was unremarkable, however in the included portion of the chest a mass lesion was present involving the region of the atrial septum. The lesion had characteristic dumbbell shape sparing the fossa ovalis (Figure 1) and measured 92 Hounsfield units (Figure 2) which denotes presence of macroscopic fat ( - 60 to - 120 HU). A diagnosis of Lipomatous hypertrophy of the interatrial septum (LHIS) was made. The ordering physician and the patient were assured to the benign nature of this process [2-4].

vascular-medicine-surgery-characteristic-dumbbell-shape

Figure 1: LHIS showing characteristic dumbbell shape sparing the fossa ovalis.

vascular-medicine-surgery-lesion-hounsfield-macroscopic

Figure 2: The lesion measured 92 Hounsfield units which denotes presence of macroscopic fat.

Lipomatous hypertrophy of the interatrial septum (LHIS) is an increasingly identified incidental pseudotumor. It has pathognomonic imaging features and usually should not require additional imaging. It is hypothesized that it is due to entrapment of fat cells in the atrial septum during embryogenesis which hypertrophy with age giving the characteristic appearance. Hence, the increased incidence with age and obesity. Some studies had linked (LHIS) to increased risk of coronary artery disease. It is usually an incidental finding. Rarely, it has been associated with atrial arrhythmias and heart block and on these occasions it may require resection [5,6].

Lipomatous hypertrophy of the interatrial septum (LHIS) can also be easily diagnosed on other cross sectional modalities imaging modalities. On Magnetic resonance imaging LHIS has high signal on T1WI and T2WI with low signal on T2WI with fat suppression. On echocardiography it usually appears as an isoechoic globular mass sparing the fossa ovalis. On FDG PET LHIS shows increased uptake in the right heart and correlation with structural imaging is need to avoid misinterpretation as malignancy [7].

The importance of this diagnosis is not to be confused with other lesions that may occur in this part of the heart including but not limited to lipoma, liposarcoma, teratoma, myxoma or other benign tumors of the heart and avoid unnecessary investigations and anxiety to the patient and the ordering physician.

References

Select your language of interest to view the total content in your interested language
Post your comment

Share This Article

Relevant Topics

Article Usage

  • Total views: 11488
  • [From(publication date):
    July-2015 - Dec 18, 2017]
  • Breakdown by view type
  • HTML page views : 7745
  • PDF downloads : 3743
 

Post your comment

captcha   Reload  Can't read the image? click here to refresh

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version