Table 1.
Average islet diameters along with size ranges, when available, are listed according to species.
| Species | Diameter range (μm) | Average diameter (μm) | References |
|---|---|---|---|
| Human | 30 to >400 | 108 ± 6 | 5,6,8,13,15,16,17–19 |
| 20–180 | 50 ± 29 | 9* | |
| Rat | 30–350 | 115 ± 5 | 20–22 |
| Mouse | 20–350 | 116 ± 80 | 9,23,24 |
| 154 ± 47 | 25 * | ||
| Monkey | 25–340 | 67 ± 38 | 9,26 |
| Adult pig | 50–250 | 156 ± 8 | 8,11,12,27,28 |
| 20–90 | 49 ± 15 | 9* | |
| Fetal pig | NR | 83 ± 1 | 10 |
| Rabbit | 25-160 | 64 ± 28 | 9 |
| Canine | 50–375 | 158 ± 2 | 29 |
| Goat | NR | 50 ± 250 | 30 |
| Bird | 10–50 | 24 ± 6 | 9 |
For the size range, the maximum range across studies was recorded.
NR: not reported.
* When results from specific studies were dramatically different from others in that species, that report was listed separately.