Journal of

Case Reports and Images in Surgery

 
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Case Report
 
Fat-forming variant of solitary fibrous tumor found in falciform ligament: A case report
Marilla Jane Dickfos1,2, Lisa Squires3
1MBBS BAppSci (Hons) General Surgery Principal House Officer, Department of General Surgery, The Prince Charles Hospital, Brisbane, Queensland, Australia.
2School of Medicine, the University of Queensland, Brisbane, Queensland, Australia.
3MBBS BAgrSc (Hons), Registrar, Department of Pathology, The Prince Charles Hospital, Brisbane, Queensland, Australia.

Article ID: 100025Z12MD2016
doi:10.5348/Z12-2016-25-CR-17

Address correspondence to:
Dr. Marilla Dickfos
The Prince Charles Hospital, 627 Rode Road
Chermside, Brisbane
Queensland
Australia

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How to cite this article:
Dickfos MJ, Squires L. Fat-forming variant of solitary fibrous tumor found in falciform ligament: A case report. J Case Rep Images Surg 2016;2:63–66.


Abstract
Introduction: The lipomatous variant of solitary fibrous tumor (SFT) is rare. Only six have been reported within the abdominopelvic region and this is the first reported within the falciform ligament.
Case Report: A 41-year- old male presented with cramping epigastric pain and reflux. On examination an epigastric mass was palpable. He was investigated with a full blood count, liver and kidney function tests and electrolytes; which were all within normal limits. An ultrasound scan documented a mass just below his xiphisternum, beneath his linear alba, 61x48x31 mm in size, causing mild compression of the liver. This mass was further investigated with a computed tomography scan which confirmed a mass just below his xiphisternum. The lesion appeared vascular and differential diagnoses on imaging included a vascular malformation, hemangioma or vascular neoplasm. Intraoperatively a hard mass was excised from the distal portion of the falciform ligament. Histopathology of the lesion showed a circumscribed spindle cell neoplasm containing a significant amount of mature adipose tissue. The morphology and immunoprofile were consistent with a SFT (lipomatous variant).
Conclusion: This case report describes a lipomatous variant of SFT in a previously undescribed location. These rare tumors can be difficult to diagnose and STAT6 immunoreactivity can be vital.

Keywords: Solitary fibrous tumor, Lipomatous variant, Falciform ligament


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Author Contributions
Marilla Dickfos – Substantial contributions to concept and design, Analysis and interpretation of data, Drafting the article, Final approval of the version to be published
Lisa Squires – Substantial contributions to concept and design, Analysis and interpretation of data, Drafting the article, Final approval of the version to be published
Guarantor of submission
The corresponding author is the guarantor of submission.
Source of support
None
Conflict of interest
Authors declare no conflict of interest.
Copyright
© 2016 Marilla Dickfos et al. This article is distributed under the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any medium provided the original author(s) and original publisher are properly credited. Please see the copyright policy on the journal website for more information.



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