Fig. 4From: Laparoscopic appendectomy for metastatic cervical cancer presenting as appendicitisImmunohistochemical analysis. Immunohistochemical stains at low magnification (a: × 4, b: × 4, c: × 4, d: × 4) shows cytokeratin 7 (CK7) positive (a), cytokeratin 20 (CK20) negative (b), estrogen receptor (ER) 70–80% (c) and progesterone receptor (PgR) 40–50% (d)Back to article page