The hepatic vein (HV) is the only draining vessel in the liver, which has two supplying vessels, from the liver sinus to the inferior vena cava (IVC).
Venous mesenteric sampling was performed intra-operatively prior to ligation of the pedicle drawing blood from the main draining vessel, for example, the inferior mesenteric vein for recto-sigmoid tumours.
To report a case of retinal angiomatous proliferation (RAP) treated by ablation of the feeding and draining vessels that recurred by 6 months postoperatively.
The proposed mechanism of spontaneous haemorrhage in meningiomas are vast and include weakening of feeding and draining vessels, intratumoural angiomatous areas with friable vascular walls, meningeal invasion of vessel walls, blood dyscrasias, concurrent anticoagulation and head trauma [16].
Rarely, a vascular loop may be associated with trigeminal neural arteriovenous malformation, where symptoms may be from the malformation itself or nerve compression/deformation from enlarged feeding and draining vessels [11] (Fig. 7).
Patient 2 shows the typical imaging appearance of an arteriovascular malformation: flow voids due to enlarged feeding and draining vessels are present in the pons, CPA and prepontine cistern on T2 (d) with enhancement on post-contrast T1 (e).
Thus, it is possible to trace individual modules, together with the supplying vessels at the surface and the draining vessels in the centre of modules, through sequences of 15 μm thick cryosections.
The spoon retractor has proven to be useful for gliomas and metastatic tumours, particularly for haemorrhagic lesions such as haemangioblastomas and arteriovenous malformations, because the retractor facilitates an en bloc removal of the mass by retracting it without causing laceration or rupture, and with feeding or draining vessels easily visualised.
Tookad-VTP selectively targets the tumor feeding and draining vessels.
Importantly, the most discriminative voxels for stimulus orientation form elongated regions that correspond well to draining vessels [34].
