An Atypical Spindle Cell/Pleomorphic Lipomatous Tumor of the Thigh With a Difficult Imaging Diagnosis That Mimicked a Malignant Lipomatous Tumor.

Autor: Fujibuchi T; From the Department of Orthopedic Surgery, Graduate School of Medicine, University of Ehime, Ehime, Japan., Ichikawa J; Department of Orthopedic Surgery, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan., Kawasaki T; Department of Pathology, Saitama Medical University International Medical Center, Saitama, Japan., Onohara K; Department of Radiology, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan., Aoki K; Physical Therapy Division, School of Health Sciences, Shinshu University, Nagano, Japan.
Jazyk: angličtina
Zdroj: Clinical nuclear medicine [Clin Nucl Med] 2024 Sep 01; Vol. 49 (9), pp. 873-876. Date of Electronic Publication: 2024 May 26.
DOI: 10.1097/RLU.0000000000005271
Abstrakt: Abstract: Atypical spindle cell/pleomorphic lipomatous tumor is categorized as a benign lipomatous tumor, but various MRI findings pose accurate diagnostic challenges. In our case, both MRI and PET/CT scans indicated the possibility of atypical lipomatous tumor/well-differentiated liposarcoma or dedifferentiated liposarcoma. Needle biopsy suggested benign to low-grade malignancy; hence, we opted for the wide resection. The final diagnosis of atypical spindle cell/pleomorphic lipomatous tumor was confirmed through histopathology analysis, including immunohistochemistry and fluorescence in situ hybridization. Since achieving an accurate diagnosis solely through imaging can be challenging, histopathology remains essential.
Competing Interests: Conflicts of interest and sources of funding: none declared.
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Databáze: MEDLINE