LK = Lymphknoten -> lymph node

LK-Exstirpation = Entfernung von Lymphknoten -> lymphadenectomy

Lymphadenectomy consists of the surgical removal of one or more groups of lymph nodes. It is almost always performed as part of the surgical management of cancer.
http://en.wikipedia.org/wiki/Lymphadenectomy

Unter einer Lymphadenektomie, auch Lymphonodektomie, Lymphknotenexstirpation, Lymphknotenentfernung oder Lymphknotendissektion genannt, versteht man die operative Entfernung von Lymphknoten.
http://de.wikipedia.org/wiki/Lymphadenektomie


e.g.:
Lymphadenectomy, also called lymph node dissection, is a surgical procedure in which lymph glands are removed from the body and examined for the presence of cancerous cells. A limited or modified lymphadenectomy removes only some of the lymph nodes in the area around a tumor; a total or radical lymphadenectomy removes all of the lymph nodes in the area.
http://www.surgeryencyclopedia.com/La-Pa/Lymphadenectomy.htm...



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Note added at 1 hr (2011-10-02 17:58:34 GMT)
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During a laparoscopic lymphadenectomy the surgeon makes a small incision in the lower abdomen to reach the lymph nodes. A tiny tube with a light and a camera (i.e., a laparoscope) is inserted into the incision and directed to the lymph nodes.
http://cancer.stanford.edu/patient_care/services/surgery/lap...

Transcervical extended mediastinal lymphadenectomy (TEMLA) was developed to enhance lymph node sampling obtained by conventional mediastinoscopy1.
http://www.ctsnet.org/sections/clinicalresources/thoracic/ex...