Almost all infiltrating colloid carcinomas of the pancreas and periampullary region arise from in situ papillary neoplasms: a study of 39 cases.
Seidel G, Zahurak M, Iacobuzio-Donahue C, Sohn TA, Adsay NV, Yeo CJ, Lillemoe KD, Cameron JL, Hruban RH, Wilentz RE. Almost all infiltrating colloid carcinomas of the pancreas and periampullary region arise from in situ papillary neoplasms: a study of 39 cases. Am J Surg Pathol. 2002 Jan; 26(1):56-63.