International Journal of Gastroenterology and Hepatology (ISSN: 2995-2301) | Volume 2, Issue 1 | Case Report | Open Access
Fulvia Terracciano*
Terracciano Fulvia1, Marra Antonella1, Bossa Fabrizio1, Covelli Claudia2, Graziano Paolo2, Nassisi Veronica3, Perri Francesco1
1Division of Gastroenterology & Endoscopy, IRCCS, Fondazione Casa Sollievo della Sofferenza, Italy
2 Pathology Unit, IRCCS Fondazione Casa Sollievo della Sofferenza, Italy
3Department of Clinical and Experimental Medicine, University of Messina, Italy
*Correspondence to: Fulvia Terracciano
Fulltext PDFPerivascular epithelioid cell tumors, or PEComas, are rare mesenchymal neoplasms composed of distinctive epithelioid cells, which are immunoreactive for both smooth muscle and melanocytic markers. A 48-year-old woman presented with a 28 mm-diameter liver tumor. Contrast-enhanced ultrasonography demonstrated homogeneously iperenhanced in early arterial phase with isoehancement in portal and venous phases. MRI showed poor fat component in the tumor. TC showed a strong heterogeneous enhancement in the arterial phase with a slight decrease during the portal phase. Percutaneuos biopsy of the lesion was performed. Histologically, epithelioid tumor cells around the vessels were immunostained with both HMB-45 and α-smooth muscle actin, confirming the diagnosis of PEComa.
Liver mass; Transabdominal ultrasound; Biopsy; Histology
Terracciano Fulvia, Marra Antonella, Bossa Fabrizio, Covelli Claudia, Graziano Paolo, Nassisi Veronica, Perri Francesco.Contrast-Enhanced Ultrasonography Imaging Features of Perivascular Epithelioid Cell Tumor (Pecoma). Int Jour Gastro Hepat. 2023;2(1):1-6.