The lymphatics of renal capsule and renal parenchyma drains into the renal sinus
On imaging, renal lymphangioma appears as a uni- or multilocular cystic mass in the perinephric space and/or in the renal sinus
This last artery entered in renal cortex, inferior to the renal sinus
A case of intravascular papillary endothelial hyperplasia (Matson's tumor) arising from renal sinus
Evaluation of the nephrectomy specimen revealed a 7 cm Fuhrman grade 2 clear cell RCC invading the renal vein with lymphovascular invasion and clear surgical margins without invasion of Gerota's fascia or the renal sinus
(T3aN0M0) (Figure 1).
Solitary tumours, medullar location, weak and heterogeneous enhancement, involvement of the renal sinus
, infiltrative growth, preserved renal contour, calcifications, and a cystic component are common CT findings in patients with CDC of the kidney.
The tumor involves the soft tissues of the renal sinus
Interestingly, renal vein and/or renal sinus
involvement was seen in 11 of 14 patients (78%) of the N1 group, 12 of 13 patients (92%) of the N0 group, and 13 of 48 patients (68%) of the Nx group.
A large well defined pyriform shaped cystic mass was seen arising from the left renal sinus
Only in one patient with renal sinus
myxoma, enucleation of the tumor was applied.
Microscopically it was haemangiopericytoma arising in the renal sinus
, composed of well-developed pericytes and capillaries with so-called staghorn configuration.
2) There is currently no clear evidence of involvement of regional limphatics in minimal fat renal AML, although recent studies suggested that AML might involve to peri-renal or renal sinus
fat, regional lymphatics, (3,4) and other visceral organs, as well as inferior vena cava.
Any one of the following has occurred (a) penetration of renal capsule (b) invasion of renal sinus
haemangioma with inferior vena cava involvement.
Infiltrating urothelial carcinoma tends to invade the renal sinus
fat and renal parenchyma as a soft tissue neoplasm of decreased attenuation compared to that of the normal kidney, usually without a significant change in the renal contour (Figure 8).