18 June 2022
: Case report 
A Rare Case of Combined Choriocarcinoma and Placental Site Trophoblastic Tumor Presenting as Skin Lesion: A Case Report
Unusual clinical course, Challenging differential diagnosis
Tulika Chatterjee1EF*, Annia Martial1EF, Sahitya Settypalli2E, Larry Lindahl3EFDOI: 10.12659/AJCR.936451
Am J Case Rep 2022; 23:e936451
Figure 4. HCG was positively stained in the cytoplasm of syncytiotrophoblasts but not the cytotrophoblasts (hCG stain, ×400).