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Relationship to Prognostic Factors and Outcome

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Abstract

Melanoma expresses c-kit, a gastrointestinal stromal tumor marker, but has not been extensively evaluated for protein kinase C θ (PKCθ) or DOG1, and these stains have not been correlated with prognostic factors. We immunostained 62 primary cutaneous and 15 metastatic melanomas for polyclonal c-kit (pc-kit), monoclonal c-kit (mc-kit), PKCθ, and DOG1 and correlated results with prognostic parameters and survival. Of the cutaneous melanomas, 34 (55%) stained for pc-kit, 30 (48%) for mc-kit, 11 (18%) for PKCθ, and 2 (3%) for DOG1. The Breslow depth was 1.00 mm or less in 21 (68%) of 31 pc-kit+ cutaneous melanomas compared with 7 (27%) of 26 pc-kit – melanomas (P =.002). The pc-kit+ melanomas had less nodal disease (1/31 [3%] vs 9/25 [36%]; P =.001) and local recurrence (1/33 [3%] vs 6/27 [22%]

Topics: A b s t r a c t
Year: 2016
OAI identifier: oai:CiteSeerX.psu:10.1.1.971.6258
Provided by: CiteSeerX
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