Figure 4

Immunostaining of IL-2Rγ. (a) Presence of positive immunoreaction in thymus sections. (b) Fibrocystic lesions showing moderate immunoreaction. (c) Lobular in situ carcinoma in which immunostaining was more intense. (d) Even more intense immunostaining in lobular infiltrating carcinoma than in in situ carcinoma. Original magnification ×375.