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. Author manuscript; available in PMC: 2020 Jul 9.
Published in final edited form as: J Am Acad Dermatol. 2017 Oct 9;78(2):278–288. doi: 10.1016/j.jaad.2017.09.065

TABLE 2.

CLINICAL PRESENTATION BY HISTOPATHOLOGICAL CLASSIFICATION AS SPITZOID VS NON SPITZOID MELANOMA

CLINICAL ASPECTHISTOPATH. SUBTYPE Total (n=52) Spitzoid melanoma (n=15) non-Spitzoid melanoma (n=37) P-value
Diameter, millimeters, mean (SD) 8 (3.6) Range 4–18 7.5 (2.7) 8.2 (4) NS
N (%) N (%) N (%)
Overall clinical presentation
 Melanoma-like (Classic ABCD criteria) 27 (51.9) 5 (33.3) 22 (59.5) 0.08
 Benign-appearing 15 (28.2) 3 (20) 12(32.4) 0.5
 Nodular / polypoid tumor 10 (19.2) 7(46.7) 3 (8.1) 0.003
Amelanotic 5 (9.6) 4 (26.7) 1 (2.7) 0.02
Modified ABCD criteria 11 (21.2) 6 (40) 5 (13.5) 0.05
Colors:
Mean number of colors (SD) 2.3 (1.1) 2.7 (1.2) 2.1 (1.0) 0.1
 ∎Light Brown n(%) 24 (46.2) 5 (33.3) 19 (51.4) 0.24
 ∎Dark brown n(%) 39 (75) 8 (53.3) 31 (83.8) 0.03
 ∎Black n(%) 15 (28.8) 4 (26.7) 11 (29.7) 1
 ∎Blue n(%) 5 (9.6) 3 (20) 2 (5.4) 0.14
 ∎Grey n(%) 9 (17.3) 5 (35.7) 4 (10.8) 0.09
 ∎Red/Pink n(%) 20 (38.5) 12 (80) 8 (21.6) P<0.001