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Trichoblastoma, Small Nodular Type Trichoblastoma, Large Nodular Type 1. At scanning magnification, a low-domed papule or nodule 1. At scanning magnification, a high-domed papule or nodule 2. Small nodules predominate 2. Large nodules predominate 3. Stromal component prominent and often predominates 3. Epithelial component prominent and usually predominates 4. Follicular germs and an adjacent papilla […]