Table 4.

Distribution of case ratings, confidence in pattern diagnosis, and management for each diagnosis.

	Atypical Nevus		Lentigo Maligna		Lentigo Maligna Melanoma		Pigmented Actinic Keratosis		Seborrheic Keratosis		Seborrheic Lichenoid Keratosis		Solar Lentigo
Case rating
Very easy	11	8.5%	19	14.7%	24	18.6%	23	17.8%	9	7.0%	0	0.00%	43	33.3%
Easy	52	10.1%	115	22.3%	37	7.2%	110	21.4%	26	5.1%	21	4.1%	154	29.9%
Moderate	106	10.2%	306	29.6%	102	9.9%	202	19.5%	44	4.2%	28	2.7%	247	23.9%
Difficult	71	12.5%	177	31.2%	91	16.0%	113	19.9%	19	3.4%	10	1.8%	87	15.3%
Very difficult	27	13.6%	52	26.3%	30	15.2%	35	17.7%	7	3.5%	4	2.0%	43	21.7%
Confidence in diagnosis
Very confident	24	8.1%	60	20.2%	35	11.8%	47	15.8%	15	5.1%	11	3.7%	105	35.4%
Mildly confident	110	11.6%	249	26.2%	82	8.6%	201	21.1%	54	5.7%	30	3.2%	226	23.7%
Uncertain	72	10.3%	220	31.5%	97	13.9%	139	19.9%	20	2.9%	15	2.2%	135	19.3%
Mildly under-confident	34	13.3%	68	26.7%	42	16.5%	45	17.7%	8	3.1%	2	0.8%	56	22.0%
Not confident	27	11.1%	72	29.6%	28	11.5%	51	21.0%	8	3.3%	5	2.1%	52	21.4%
Management
Skin biopsy	74	8.8%	314	37.2%	187	22.2%	129	15.3%	28	3.3%	19	2.3%	93	11.0%
Reflectance confocal microscopy	72	12.1%	165	27.7%	64	10.8%	122	20.5%	24	4.0%	20	3.4%	128	21.5%
Close dermoscopic follow-up	121	12.0%	190	18.9%	33	3.3%	232	23.1%	53	5.3%	24	2.4%	353	35.1%