<prompt> Contraindications for pancreaticoduodenectomy for carcinoma head of pancreas would include all of the following EXCEPT:Infiltration of poal veinMetastases to coelic grop of lymph nodesInfiltration of the second pa of the duodenumTumour measuring 6 cm in size  <response>: Patients with duct cell cancers should be considered for resection, which are: 