Carcinoid tumor—degree of differentiation

n = 6

Well-differentiated

n = 6

Location in the appendix

Distal third

n = 2

Tip

n = 4

Clinical presentation

Acute appendicitis

n = 6

Carcinoid histological markers

n = 0

Mitosis 1/High-power field (HPF)

n = 6

Index ki 67 < 5%

n = 6