| Histopathology by Fontana stain | Melasma % | LPA % | MLPA % |
| Basal melanosis | 90.9% | 50.0% | 76.2% |
| Melanophages | (45.45%) | (100%) | (100%) |
| Level of pigmentation | Mixed (90.9%) | Mixed (50%) | Mixed (63.6%) |