vascular invasion

vascular/lymphatic invasion

Oncology The penetration of vascular or other transport conduit by a malignancy. See Metastasis.
References in periodicals archive ?
HCC often metastasizes to lymph nodes, bone, and lung, but it also has a significant tendency for vascular invasion (6).
Vascular invasion occurs when tumor cells within vessels are (1) within or beyond the capsule, (2) identified by direct extension into the vessel, (3) lined by endothelial cells, (4) associated with thrombus, (5) not freely floating within the vascular space, and (6) having a morphology that is identical to the cells within the tumor (figures 3 and 4).
9) Features of vascular invasion are irregular contours of the contrast-filled vascular lumen and frank endoluminal soft tissue.
5) HAS shows a high rate of vascular invasion, and nodal as well as liver metastases, whereas MRC is more often characterized by low TNM stage at diagnosis and by a low incidence of nodal metastasis.
There was a 2 cm infiltrating squamous cell carcinoma in the anterior segment with vascular invasion (pathological (p) T2a according to TNM 7th Edition) and a separate 2.
14,17) Avian thymomas are likely similar to companion animal thymomas in this respect, with vascular invasion carrying a worse prognosis.
Pathologic examination of nodules with the halo sign showed that the halo around a central fungal lesion corresponded to a nodule surrounded by a rim of coagulation necrosis due to the vascular invasion that causes thrombotic occlusion and ischemic necrosis (9).
Vascular invasion is rarely seen, but when present, it clearly identifies the malignant varieties.
PARIS -- Vascular invasion is highly predictive of long-term survival in thyroid cancer, and its presence or absence should be considered when determining a patient's postsurgical follow-up plan, an investigator concluded from long-term follow-up of 725 patients.