Biopsy of the Tumor

A large biopsy of the tumor is necessary for a frozen section and then histological and genomic typing of the tumor. We dissect the inner core of the tumor from the capsule. We coagulated the surface of the tumor in order to try to limit the bleeding during the sample. And we can clearly see the difference between the inner core of the tumor and the pseudo capsule that is around. We try to dissect some tissue from inside in order to avoid excessive traction during the sample of the tumor tissue. And we perform a standard tumor biopsy. At this point, the tumor is bleeding in a gentle way and allows for farther sample of tumor tissue. During this phase, we try to apply the least coagulation as possible. We reach during this maneuver the central necrotic core of the tumor, and at this point voiding the tumor and voiding the necrotic area that is in the middle allows for a farther dissection and identification of the lateral boundaries.