Fig. 3
From: Clinical value of Cyclin D1 and P21 in the differential diagnosis of papillary thyroid carcinoma
Histological morphology (200 ×) and immunohistochemical (200 ×) expression of Cyclin D1 and P21 in intralymph node ectopic thyroid tissue and intralymph node PTC metastases. A1. Histological morphology of intralymph node ectopic thyroid tissue; A2. Intralymph node ectopic thyroid tissue does not express Cyclin D1; A3. Intralymph node ectopic thyroid tissue nodes do not express P21; A4. Histological morphology of intralymph node PTC metastases; A5. Cyclin D1 positive expression in intralymph node PTC metastases; A6. Positive P21 expression in intralymph node PTC metastases