radical dissection

rad·i·cal dis·sec·tion

(rad'i-kăl di-sek'shŭn)
Surgical removal of not only the affected tissue or organ, but also the surrounding tissue in a wide margin, typically including the regional lymph nodes to remove not only the malignant tumor but also nearby tissue that may be affected to decrease the risk of recurrence or metastasis.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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Lymph node metastasis is the main route of metastasis of gastric cancer, and radical dissection of lymph node during the surgery had a direct influence on the outcome and prognosis [13, 14].
Modified Radical Dissection (3): Removal of level I to V lymph nodes but preservation of nonlymphatic structures.
Morbidity associated with selective neck dissection is definitely less than radical dissection, but there are still quality effects, especially when bilateral dissection is performed.
Radical dissection of the right neck and excision of the total larynx, right pyriform fossa and part of the right thyroid gland were performed.