Figure 1From: High-incidence of PTEN mutations in Chinese patients with primary small cell carcinoma of the esophagus A representative case of primary small cell carcinoma of the esophagus. Biopsy materials were shown in the histopathologic examination, and tumoral cells in the sample indicated CK, CgA, CD56, Syn, TTF-1 and Ki-67 with a positive immunoreactivity by immunohistochemical examination. (Magnification, ×200).Back to article page