1. Kanamoto A, Nakanishi Y, Ochiai A, Shimoda T, Yamaguchi H, Tachimori Y, et al. A case of small polypoid esophageal carcinoma with multidirectional differentiation, including neuroendocrine, squamous, ciliated glandular, and sarcomatous components. Arch Pathol Lab Med. 2000;124:1685–7.
2. Yamazaki K. A gastric carcinosarcoma with neuroendocrine cell differentiation and undifferentiated spindle-shaped sarcoma component possibly progressing from the conventional tubular adenocarcinoma; an immunohisto-chemical and ultrastructural study. Virchows Arch. 2003;442:77–81.
3. Insabato L, Di Vizio D, Ciancia G, Oettinato G, Tornillo L, Terracciano L. Malignant gastrointestinal leiomyosarcoma and gastrointestinal stromal tumor with prominent osteoclast-like giant cells. Arch Pathol Lab Med. 2004;128:440–3.
4. Kyogoku M, Okukubo T, Aoki S. An autopsy case of carcinosarcoma which originated in the stomach. Gann. 1960;51:278–9.
5. Melato M, Bucconi S, Grillo BP, Angelucci P, Stefano PD, Natolic C. Carcinosarcoma and separate neuroendocrine malignant tumor of a malignancy promoter, the gastric stump. Anticancer Res. 1993;13:2485–8.