Carcinosarcoma of the Gallbladder with Chondrosarcomatous Differentiation and Intracytoplasmic Eosinophilic Hyaline Globules (Thanatosomes): A Report of a Case and Review of the Literature

Figure 3

(a) Cytokeratin AE1/AE3 immunostain featuring positive nests of malignant epithelial cells and negative staining of sarcomatous component. X100. (b) Vimentin stain featuring positive staining of sarcomatous cells, and negative staining of epithelial nests. (c) Island of malignant cartilage staining positively for S100-protein X100. (d) Desmin stain featuring scattered positive mesenchymal sarcomatous cells. X200. (e) Alpha 1-antitrypsin positive staining of eosinophilic hyaline globules. X100. (f) Eosinophilic hyaline globules (EHGs) stain positive for PAS stain with diastase. X100.

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