FIGURE 3
From: Trichoblastic Carcinoma (“Malignant Trichoblastoma”) with Lymphatic and Hematogenous Metastases
Indirect immunofluorescence performed on frozen material of the liver metastasis with (guinea-pig) antiserum to human hair keratin type I demonstrating cytoplasmic staining of the tumor cells. A, most cells show a collapsed but readily discernible tonofilament network around the nucleus (×504). B, the spindle shaped tumor cells possess rare but distinct tonofilaments stretching throughout the cytoplasm (×800).
