PubMed · 3153421
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S Hurwitz. 1988. Pigmented nevi.. https://pubmed.ncbi.nlm.nih.gov/3153421/
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BACKGROUND: Poor interobserver reproducibility in diagnosing and grading dysplastic melanocytic nevi is often cited as evidence against the ability of pathologists to recognize such an entity. OBJECTIVE: We attempted to examine the diagnostic profiles of melanocytic lesions of two dermatopathologists in a stable population base. METHODS: All 2600 melanocytic neoplasms were diagnosed at Stanford University Medical Center during the past 4 years by one dermatopathologist from 1987 to 1989 and a different dermatopathologist in 1990 and 1991. The two independently evaluated these lesions unaware of the other's criteria. RESULTS: The diagnostic profile of the two pathologists shows a striking degree of similarity: 76.7% versus 75.3% of all nevi were diagnosed as acquired melanocytic nevi, 8.8% versus 12.0% were diagnosed as mildly dysplastic, 7.0% versus 6.8% as moderately dysplastic, and 2.7% versus 1.6% as severely dysplastic. CONCLUSION: Our findings suggest that the two pathologists are using reproducible criteria for diagnosing and grading dysplastic nevi.