perineural


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perineural

[‚per·ə′nu̇r·əl]
(anatomy)
Situated around nervous tissue or a nerve.
References in periodicals archive ?
Common features of perineural invasion cases include midface location of the tumor, male gender, tumor size larger than 2 cm, recurrence, and poor histologic differentiation.
According to the NCCN Guidelines, clinicopathologic characteristics, including fewer than 12 LNs retrieved, T4 staging, poorly differentiated tumor, lymphovascular or perineural invasion, obstructing or perforating cancers and positive margins, are considered in selecting high-risk Stage II patients for adjuvant chemotherapy.
Perineural administration of dexamedetomidine in combination with bupivacaine enhances sensory and motor blockade in sciatic nerve block without inducing neurotoxicity in rat.
Mandibular branch of V3: Neurogenic tumor, perineural spread of tumor * Mandible: Osteomyelitis, odontogenic abscess, primary jaw lesions, metastases, myeloma (Figure 11).
Department of Pathology provided data on histopathologic features of the tumor (tumor size, tumor stage, number of lymph nodes removed, number of lymph nodes with tumor cells, tumor grade of differentiation, presence of lymphovascular or perineural invasion, tumor distance from resecting edge, and whether the patient underwent surgery for metastases).
This wide range is due to the prognostic factors like lateralization, size, invasion depth, perineural or vascular invasion of the tumor and residual tumoral tissue.
Nerve repair segment is further segmented based on repair type into epineural repair, perineural repair and group fascicular repair.
Perineural (Tarlov) cysts are rare and are usually asymptomatic and an incidental finding on routine spinal imaging.
The capsule contains epithelial membrane antigen(EMA) positive flattened, elongated perineural cells.
It frequently involves the extracranial portion of the facial nerve and has a propensity to metastasize through the temporal bone via perineural spread.
Perineural invasion (PNI), which was seen in Case 2 of this report, is another important factor that impacts prognosis.