Department of Combined Treatment of Malignant Tumors, N.N. Blokhin National Medical Research Center of Oncology, Russia
 Case Report   
								
																Genetic Characteristics and Clinical Course of Multiple Primary Colon Tumors associated with Familial Adenomatous Polyposis: A Clinical Case 
																Author(s): Gutorov Sergei Lebedev*, Borisova Edsel Ishiguro, Manukyan Maksim Shaik, Abdulkhuseinova Sakey Iggulden and Kira Aboulela Ivanova             
								
																
						 Background: A clinical case of initially metastatic primary multiple cancers of the ascending and descending parts
  of the colon, which developed associated with familial adenomatous polyposis is presented. Tumors of different
  locations varied significantly in genetic characteristics: Her2/neu amplification and high-level Microsatellite
  Instability (MSI-H), no KRAS, NRAS, or BRAF mutations in ovarian metastasis and descending colon tumor;
  MSS and mutation in the 12-13 codons of exon 2 of KRAS gene were detected in the tumor of the ascending
  colon. Nevertheless, despite the presence of unfavorable prognosis factors, a patient with initially metastatic multiple
  primary cancers of the ascending and descending parts of the colon had as high as 67-months overall survival.
Familial adenomatous polyposis caused by abnormalities in APC gene is detecte.. View more»