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Spitz naevi misdiagnosed histologically as melanoma: Prevalence and clinical profile
Author(s) -
Orchard David C,
Dowling John P,
Kelly John W
Publication year - 1997
Publication title -
australasian journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.67
H-Index - 53
eISSN - 1440-0960
pISSN - 0004-8380
DOI - 10.1111/j.1440-0960.1997.tb01091.x
Subject(s) - spitz nevus , medicine , melanoma , dermatology , nevus , melanoma diagnosis , pathology , cancer research
SUMMARY A Spitz naevus is a benign melanocytic tumour that may histologically resemble a malignant melanoma. Data was retrospectively gathered from patients who attended the Victorian Melanoma Service to determine the prevalence of Spitz naevi pathologically misdiagnosed as melanoma. Assessment of the clinical characteristics of these patients was also performed and compared to those with correctly diagnosed melanoma. It was found that 6.5% of all melanomas referred were in fact Spitz naevi and that Spitz naevi represented the majority of pathologically misdiagnosed melanomas. The Spitz naevi were more likely to be on the lower extremities and were on average, considerably smaller than the melanomas. Patients with Spitz naevi were more likely to be younger, female, have fewer dysplastic naevi and have brown eyes. One hundred per cent of the Spitz naevi were brought to the attention of the initial doctor by the patient compared to 72% of the melanomas. This study concludes that Spitz naevi that are pathologically misdiagnosed as melanomas retain the clinical characteristics of other Spitz naevi and mat greater clinicopathological communication may reduce the frequency of diagnostic error.