25 January 2026
: Case report 
Histiocytic Sarcoma Treated With Autologous Stem Cell Transplantation: A Case Report and Literature Review of the Role of Autologous and Allogenic Stem Cell Transplantation
Rare disease
Yun Ji Lee
BCDEF 1, Dong Won Baek AF 1*
DOI: 10.12659/AJCR.950225
Am J Case Rep 2026; 27:e950225
Figure 2 Enhanced abdominal CT images. (A) At the time of diagnosis, CT scan revealed splenomegaly with multiple low-density masses, the largest measuring 7 cm. (B) Despite CHOEP chemotherapy, there was an increase size and numbers of nummerable, ill-defined, heterogenous target-appearing, low-attenuated lesions (<2.8 cm) in the liver. The differential diagnosis included metastatic lesions or combined metastatic and inflammatory lesions. CT – computed tomography; CHOEP – cyclophosphamide, doxorubicin, vincristine, etoposide, and prednisone.