Fig. 5

Histopathological findings. a Histopathological findings in the dissected spleen and lymph nodes showed epithelioid cell granulomas with polynuclear giant cells, but no central caseous necrosis (arrows). b Asteroid bodies were present (arrows). c The findings in the lymph nodes were similar to those in the spleen (arrows). No evidence of metastatic carcinoma was found. d The retrospective histopathological findings in the part of dissected liver metastasis showed epithelioid cell granulomas with polynuclear giant cells