SATB2 protein expression by immunohistochemistry is a sensitive and specific marker of appendiceal and rectosigmoid well differentiated neuroendocrine tumours. - Hoskoppal, Deepthi; Epstein, Jonathan I; Gown, Allen M; Arnold Egloff, Shanna A; Gordetsky, Jennifer B; Shi, Chanjuan J; Giannico, Giovanna A (Histopathology, 2020)