Fig. 1From: F-18 FDG PET/CT in staging and response assessment of primary cutaneous diffuse large B-cell lymphoma (leg type)a Skin with tumour in subcutis arranged in nodular pattern (H&E, 2x), b Tumour cells forming nodules, confluent sheets and peritheliomatous arrangement, predominantly centroblasts and immunoblasts (H&E, 20x), c Immunohistochemistry was positive for CD45,CD20 and MUM 1(> 30% cells) and negative for CD10, BCL6 and CD23, with Ki67 index > 80%Back to article page