Figure 1From: Lipomatous apocrine adenoma with syringocystadenoma papilliferum arising from the external auditory canalHistologic examination shows two different portions of tumor. The left lesion of the tumor shows syringocystadenoma papilliferum with papillomatous projection into the invaginations of the surface epithelium. The right lesion of the tumor reveals lipomatous tubular adenoma composed of double-layered tubular structure. (H&E, original magnification × 40).Back to article page