Personalführung

Presurgical evaluation of malignant neck nodes by assessment it’s Intranodal vascularity using the color Doppler ultra sound

“…So we observed hilar flow signals in the benign LNs , this agrees with the (21) in that flow signals were detected as dot like pattern. and this comes in agreement with those authors (28,3,14) . In stating that the reactive LNs preserve their normal hilar vascular pattern while disagrees with the (14) .…”

“…2.Capsular vascularity: in which the pre-existing blood vessels were run from periphery to hilum of LNs this pattern was found in 16 malignant LNs (37.2%) while presented in 4 benign LNs (18.2%).In our study the malignant LNs had capsular vascularity may be due to the neosvascularization by tumor infiltration induces aberrant vassels at periphery of LNs. This confirms with those studies (27,28,38) in their explanation that the prominence of capsular vascularity at the periphery of malignant LNs appears secondary to initial deposition of carcinoma cells in marginal area. In capsule of some benign LNs ,this agrees with the (28) .…”

“…Hilar vascularity: the highly normal blood vessel can be seen limited within the hilum region of LNs this pattern was commonly observed in (77.3%) of benign LNS, while also were seen in (14%) of malignant LNs. Our results agrees with many studies (28,13,14) in their explanation in that the reactive node showed predominantly hilar vascularity due to increase in blood vessel diameter and blood flow, as a result to the diffuse nature of the histological process, occurring within the node is more likely to be preserve the normal vascular pattern. In the present study, the low percentage of the malignant LNs have hilar vascularity due to that malignant node in the beginning stage has nearly similar artichitecture of reactive LN This was in agreement with the (37) in his explanation that early stage of microinfiltration vascularity may increase owing to local immune reaction.…”

“…. In this study, the nodal vascularity was assessed according to the distribution of blood vessels within cervical LNs and classified into 3 patterns only that were observed in the color Doppler ultra sound flow : hilar vascularity, capsular vascularity and capsular with hilar vascularity, our results are in agreement with those studies (6,14,28) in their classification to the nodal vascular patterns; hilar, capsular, hilar with capsular. and disagrees with others studies whose classified the nodal vascular patterns in other classification.…”

“…Mixed pattern: in which the vessels were run from hilum to the LN periphery. Reactive enlarged node showed greater hilar perfusion while metastatic node showed as peripheral, peripheral + central perifusion (23,28) .…”