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Parosteal lipoma with hyperostosis: case report
Ferehiwot Bekele1, Ephrem Gebrehana, Biniam Tsegaye
1Department of Radiology, Addis Ababa University, Ethiopia.
Ethiopian Medical Journal
|January 16, 2015
Summary
This study describes an extremely rare parosteal lipoma of the humerus, a benign tumor of fatty tissue. The case highlights its association with hyperostosis and characteristic imaging findings.
Area of Science:
- Orthopedic Surgery
- Skeletal Radiology
- Surgical Pathology
Background:
- Parosteal lipoma is a rare, benign adipose tumor intimately associated with periosteal bone.
- This condition requires careful diagnostic evaluation due to its rarity and potential for bone involvement.
Observation:
- A rare case of parosteal lipoma of the humerus with coexisting hyperostosis is presented.
- Radiography revealed a radiolucent mass adjacent to an exostosis, while CT demonstrated a lobulated, fat-density mass encasing the osseous excrescence and humeral cortex.
Findings:
- Surgical exploration identified a well-encapsulated, yellowish, fatty mass attached by a stalk to the bone.
- Pathological examination confirmed mature adipose tissue, consistent with a parosteal lipoma.
Implications:
- This case underscores the importance of integrating imaging findings with surgical and pathological data for accurate diagnosis of parosteal lipoma.
- Understanding the imaging characteristics is crucial for surgical planning and differentiating parosteal lipoma from other bone tumors.
