There is significant lymph-vascular and perineural invasion (figure 2), which is often associated with positive resection margins.
What does PNI stand for?
PNI stands for Perineural Invasion
This definition appears frequently and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
See other definitions of PNI
We have 76 other meanings of PNI in our Acronym Attic
- Programa Nacional de Hepatites Virais (Portugese)
- President's National Hire Veterans Committee (US Department of Labor)
- Padmaja Naidu Himalayan Zoological Park (India)
- Pacific Nanotechnology, Inc. (Santa Clara, CA)
- Pacific Neuropsychiatric Institute (Seattle, Washington)
- Pacific Neurosciences Institute
- Paid/No Issue (banking term)
- Palestinian National Initiative
- Paranormal Ideation
- Partido Nacional Independiente (National Independent Party, Costa Rica)
- Pharmaceutical News Index
- Pohnpei, Caroline Islands, Micronesia - Pohnpei International (Airport Code)
- Porter Novelli International (public relations; various locations)
- Positivo, Negativo, Interesante (Spanish: Positive, Negative, Interesting)
- Prescott New Instruction (Intel chips; early codename)
- Princeton Neuroscience Institute (Princeton University; Princeton, NJ)
- Pro Natura International (Paris, France)
- Producción Nacional Independiente (Venezuela)
- Productivity Network, Inc.
- Progressive Networks, Inc.
Samples in periodicals archive:
Common metastatic routes of neoplastic cells are local invasion and lymphatic, hematogenous, and peritoneal dissemination, (10) Perineural invasion is an under-recognized route of metastatic spread, where neoplastic cells spread by local peripheral nerves.
Such nodules often represent the result of vascular invasion (Figure 2, B), or more rarely, perineural invasion (Figure 2, C).
13) Many authors who have studied differentiation have also evaluated other histopathologic factors, such as perineural invasion, lymphovascular permeation, and muscle invasion.
The presence of pathologic signs of early metastatic invasion--vascular emboli, lymphatic invasion, and perineural invasion (VELIPI)--was associated with adverse outcomes during a mean follow-up period of 44.
One isolated focus of perineural invasion by the epithelial component was noted; there was no lymphovascular invasion, nor any necrosis, anaplasia, or mitosis in the specimen.
WASHINGTON -- New evidence suggests that perineural invasion may occur in aggressive nonmelanoma skin cancers more frequently than previously reported and is often overlooked in the examination of margins, speakers said at the Sixth International Conference on Head and Neck Cancer.
Clinicopathological parameters such as age and gender of the patient, location and size, Duke's stage, histological type and grade of the tumour, metastatic lymph node involment, number of metastatic lymph nodes, lymphatic, venousand perineural invasion, presence of preoperative and postoperative metastatic tumour and recurence were evaluated.