PMC4772919_01
Biopsy of the patient's tumor (H&E 20x10): tumor islands comprised of poorly differentiated squamous cancer cells having intercellular bridges with macronucleoli and hyperchromatic vesicular nuclei.. Abbreviation: H&E, hematoxylin and eosin.
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A tissue biopsy was taken to confirm tumor recurrence (Figure 1).
Computer tomography scan showing response of the tumorous lesion to the cetuximab treatment located at the postauricular region extending to the parotid capsule.
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The tumor lesion had completely regressed at the time the treatment was terminated (Figure 2).