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. Author manuscript; available in PMC: 2016 Aug 24.
Published in final edited form as: Head Neck. 2015 Oct 30;38(Suppl 1):E1192–E1199. doi: 10.1002/hed.24190

FIGURE 1.

FIGURE 1

Histologic appearance of minor extracapsular spread (ECS). (A) Lymph node with metastatic tumor (T) invading perinodal fat. The extent of ECS (0.5 mm) is measured (solid bar) from the outer aspect of the lymph node capsule (C) to the more distant point of perinodal invasion (E). A 1-mm bar is inserted for size comparison. (B) Higher power showing the squamous cell carcinoma (arrow) infiltrating in between adipose cells (F).