Figure 1From: Interleukin-2 and its receptor complex (α, β and γ chains) in in situand infiltrative human breast cancer: an immunohistochemical comparative studyIL-2 immunostaining. (a) Thymus sections were used as a positive control. Fibrocystic lesions show either no immunoreaction (b) or a weak immunoreaction limited to a circumscribed supranuclear region (c). In ductal in situ (d) and ductal infiltrating (e) carcinomas, most of the cytoplasm was labelled. Original magnification ×375.Back to article page