Giant Ossifying Lipoma of the Hand: A Case Report and Review of Literature

Abstract

Lipomas are one of the most common benign tumors of the body, characterized by a slow-growing, painless mass that rarely causes symptoms. Bone metaplasia among the mature adipose cells, however, is a rare condition called osteolipoma. In this article, we present a case report of a 61-year-old lady with a giant osteolipoma of the hand. After a surgical extirpation, she showed a fast recovery, and no recurrence during the two-year follow-up period was observed. We aimed to make a literature review of this pathology, discussing the symptoms, diagnosis, and management of this rare condition.

Keywords: diagnosis; giant; hand; ossifying lipoma; treatment.

Figure 1. (a and b) Preoperative photography presenting a tumor mass localized in the first dorsal web space

Figure 2. (a-b) Roentgenographies presented a clearly defined radiolucent ovoid formation soft-tissue mass with a trabecular calcified structure in it (arrowhead) in the space between the first and second fingers (a - anterior posterior view; b - lateral view). (c-d) CT imaging presented a soft-tissue mass with netlike calcification in its central part (asterisk) (c - transverse view; d - sagittal view). (e-f) 3D reconstruction

CT: computed tomography; 3D: three-dimensional

Figure 3. Intraoperative photography presenting a well-encapsulated ovoid mass with macroscopic characteristics of lipoma

Figure 4. Histopathology of the lesion shows mature adipose tissue with trabecula of mature lamellar bone (arrowhead). (a-b) magnification x 100. (c) magnification x 200