Table 1: Histopathological findings of sarcomatoid tumor in our patient.

Light microscopy High cellularity, spindle and pleomorphic cells with bizarre appearance, atypical mitotic figures, and necrosis.

Immunohistochemical findingsCytokeratin (AE1/AE3) Negative
Vimentin (V9)Positive
SMA Positive
Factor VIIINegative
C-kit (CD117)Negative (rare, weak, granular positivity in the Golgi area)
CD34Negative