Fig. 1From: Low p27kip1 expression in head and neck squamous cell carcinoma: association with risk factors and adverse outcomesp27kip1 expression in Squamous cell carcinoma. a & b. High expression of p27kip1, showing diffuse nuclear positivity of p27kip1; c & d. Low expression of p27kip1, only a few tumor cells showing mild nuclear positivity for p27kip1, majority of tumor cells revealing loss of expression . Lymphocytes serve as positive controlBack to article page