this is a 10 yr old dsh. presented vomitng , pu/pd , icteric. I believe I have an extra hepatic cbd obstruction I am chasing why. I included image with arrow. is neoplasia likely in this area?  i do not see any choleliths. no other u/s abnormalities.Thanks

this is a 10 yr old dsh. presented vomitng , pu/pd , icteric. I believe I have an extra hepatic cbd obstruction I am chasing why. I included image with arrow. is neoplasia likely in this area?  i do not see any choleliths. no other u/s abnormalities.Thanks