Dedifferentiated Leiomyosarcoma of the Auricle with Heterologous Osteosarcoma Component: Case Report and Literature Review

Figure 2

Spindle cell morphology of leiomyosarcoma (a) and dedifferentiated component of tumour characterized by pleomorphic, atypical cell producing osteoid (b) that was immunohistochemically completely negative for smooth muscle actin (SMA, as well as other muscle markers) (c).

(a)

(b)

(c)