Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . 14.—Long, Thin, Brain Knife, of Value for Incising designed for brain dissection, but at present used for incising kidney, liver, spleen, tumors, etc. Asshown in the illustration, the instrument should not have a cutting-edge measuring less than sixteen centi-meters. The graduation along the back of the knife affords a convenient measure. On the other side thegraduation is in inches. demonstrate that the cystic and common ducts are patulous theyshould be carefully ex
Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . 14.—Long, Thin, Brain Knife, of Value for Incising designed for brain dissection, but at present used for incising kidney, liver, spleen, tumors, etc. Asshown in the illustration, the instrument should not have a cutting-edge measuring less than sixteen centi-meters. The graduation along the back of the knife affords a convenient measure. On the other side thegraduation is in inches. demonstrate that the cystic and common ducts are patulous theyshould be carefully exposed. This can not be done after the removalof the pancreas, duodenum, or liver; as it is important in many, ifnot all, cases to assure ones self of thfe condition of the hepatic, cystic,and common ducts, and as cutting through either of them may renderlater demonstration unsatisfactory or even quite impossible, they should,therefore, be dissected out in situ. Open the ductus cominunis choled-ochus, examine mucous membrane, and continue the incision upwardinto the gall-bladder and larger hepatic Fig. 15.— for opening stomach, duodenum, intestines, etc. Not uncommonly the blunt-pointed lower blade is somade that it forms a tooth, like the barb on a fish-hook, and when introduced, can not be withdrawn. Suchhook-pointed enterotomes are to be avoided. The portal vein, hepatic vein, and vena cava may be opened be-fore the removal of the liver; or, as the first two must be severed dur-ing the removal of the organ, they may be examined at that time. Thecondition of their contents and appearances of their walls must benoted. The liver may now be detached from the diaphragm, or, if it isadherent to that structure, the two may be removed together; whenthe lung, liver, and diaphragm are fused by adhesions at their pointsof contact, and when there may be any suspicion of a suppurativelesion burrowing in either direction, it is best to let the lung remain POST
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