13 March 2026
: Case report 
A Challenging Case of Pleomorphic Lipoma of the Shoulder Mimicking Liposarcoma
Challenging differential diagnosis
Yunan Han
DEF 1, Abid Qureshi ADEF 1, Haleigh M. Heubeck EF 1, Yingxian Liu ADEF 2, Luca Milone ABDEF 1*
DOI: 10.12659/AJCR.950876
Am J Case Rep 2026; 27:e950876
Figure 1 Ultrasound imaging of the left upper extremity mass (sagittal plane)Grayscale ultrasound images demonstrate a lobulated, subdermal soft tissue mass measuring approximately 4.7×1.0×2.5 cm in the lateral aspect of the left upper arm.