Table 2 Clinicopathological findings of 16 cases of sinonasal melanoma
Cases | Clinical findings | Predominant cellular composition | Melanogenesis | Necrosis | Vascular invasion | Neural invasion | ||
|---|---|---|---|---|---|---|---|---|
Gender | Age | Origin | ||||||
1 | – | – | NA- | undifferentiated | 0 | < 50% | Negative | Negative |
2 | male | 69 | Nasal cavity | Epithelioid | < 50% | < 50% | Negative | Negative |
3 | female | 71 | Nasal cavity | undifferentiated | < 50% | < 50% | Positive | Negative |
4 | female | 24 | Maxillary sinus | Spindle cell | > 50% | < 50% | Negative | Negative |
5 | male | 65 | Nasal cavity | Epithelioid | 0 | > 50% | Negative | Negative |
6 | female | 67 | Nasal cavity | undifferentiated | < 50% | < 50% | Negative | Negative |
7 | female | 60 | Nasal cavity | undifferentiated | 0 | > 50% | Negative | Negative |
8 | male | 66 | Nasal cavity | undifferentiated | 0 | > 50% | Negative | Negative |
9 | male | 55 | Nasal cavity | Spindle cell | 0 | < 50% | Positive | Negative |
10 | female | 58 | Nasal cavity | undifferentiated | 0 | > 50% | Negative | Negative |
11 | female | 67 | Nasal cavity | undifferentiated | < 50% | < 50% | Negative | Negative |
12 | male | 66 | Nasal cavity | undifferentiated | 0 | > 50% | Negative | Negative |
13 | female | 50 | Nasal cavity | Epithelioid | > 50% | > 50% | Negative | Negative |
14 | female | 78 | Nasal cavity | undifferentiated | 0 | > 50% | Negative | Negative |
15 | male | 65 | Nasal cavity | undifferentiated | 0 | > 50% | Negative | Negative |
16 | female | 78 | Nasal cavity | undifferentiated | < 50% | > 50% | Negative | Negative |