Table 2: Carcinoids of colon and rectum. Chromogranin A and synaptophysin immunohistochemical staining.

Age/Sex Size (cm) Histological Pattern CgA SPY
1 45/M A 0.4 Trabecular +++ +
2 54/M A 0.4 Trabecular +++ +
3 65/F A 1.5 × 1.0 Lobular > Solid +++ +++
4 67/M A 0.8 × 0.5 Lobular > Solid +++ +
5 70/F A 0.5 Trabecular +++ ++
6 80/F T 2.0 × 1.5 × 1.0 Lobular +++ +
7 65/F D Liver (Metastasis) Lobular > Solid +++ +++
8 70/M S 0.7 × 0.5 Solid ++ ++
9 73/F S 1.5 × 1.0 Lobular > Solid +++ +++
10 74/F S 0.2 Solid - +++
11 76/M S 0.5 Solid - ++
12 47/M R 0.4 Trabecular - +
13 54/F R 0.4 Trabecular - +
14 63/F R 4.8 × 2.3 × 2.3 Solid - +++
15 70/M R 0.8 × 0.5 Solid - +++
16 74/M R 0.5 Trabecular - ++
17 76/M R 0.5 Trabecular - +

A: Ascending Colon; D: Descending Colon; S: Sigmoid Colon; R: Rectum; T: Transverse Colon.