cell type benign neoplasm +
seminal vesicle tumor +

adenofibroma +
adenoma +
adenomyoma +
ameloblastoma
angiomyolipoma +
benign mastocytoma
benign pleural mesothelioma
bile duct cystadenoma +
chondroblastoma
chondroma +
ganglioglioma +
germ cell benign neoplasm +
gonadoblastoma +
hemangioma +
hidradenoma +
insulinoma
leiomyoma +
lipoma +
low grade glioma +
microcystic adenoma
middle ear adenoma
neurilemmoma +
papilloma +
prostatic adenoma
rete ovarii adenoma +
squamous cell neoplasm +