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Pol J Radiol. 2011 Oct;76(4):52-9.

Intraosseous lipomas: A report of six cases and a review of literature.

Author information

1
1 Department of Clinical Radiology, Medical University of Warsaw, Warsaw, Poland.

Abstract

BACKGROUND:

Intraosseous lipoma is a very rare lesion, which constitutes not more than 0.1% of bone tumors. The introduction of cross-sectional imaging, especially MRI, seems to have increased the detection rate of these lesions.

CASE REPORT:

The authors presented 6 cases of intraosseous lipomas in bones of the lower extremities. All lesions were detected incidentally and presented radiographically as radiolucent lesions with sclerotic borders and internal trabeculations. One lesion caused bone expansion. CT and MRI identified fatty tissue in all lesions. Cystic degeneration was present in one lesion and dystrophic calcifications in two.

DISCUSSION:

The radiographic appearance of intraosseous lipomas is not characteristic and requires differential diagnostics conducted for a long time. However, CT and MRI allow for a tissue-specific diagnosis. The detection of a predominant fatty component in a lesion confirms its benign character and no further diagnostic work-up is required.

KEYWORDS:

bone tumor; imaging; intraosseous lipoma

PMID:
22802856
PMCID:
PMC3389946

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