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Table 1 Sample Set: Composition by Diagnosis.

From: FISH as an effective diagnostic tool for the management of challenging melanocytic lesions

  Total Cases Positive By FISH % Positive
Nevus    
Congenital 8 0 0.00%
Compound 37 0 0.00%
Intradermal 62 1 1.60%
Junctional 9 0 0.00%
Mild Atypia 32 2 6.30%
Blue 9 0 0.00%
   Percent Positive 1.90%
Nevus-Dysplastic    
Nevus-Moderate Atypia 60 4 6.70%
Nevus-Severe Atypia 29 3 10.30%
Nevus-Scalp 38 3 7.90%
Nevus-Spitz 49 6 12.20%
Subtotal 176 Percent Positive 9.10%
Melanoma    
Superficial Spreading 71 57 80.30%
Spindle cell/desmo-plastic 3 2 66.70%
Nodular 45 42 93.30%
In Situ 8 6 75.00%
Metastatic 40 33 82.50%
Subtotal 167 Percent Positive 83.80%
Total Cases 500