PMC4486653_01
Case 1: a Right otoscopic view. A soft mass (arrow) totally fills the external auricular canals hiding the entire tympanic membrane. b Operative findings. By transcanal and post auricular approaches, the skin with the tumor was fully removed from the external auditory canal leaving part of the anterior wall. c 2 x 2 cm split thickness skin graft excised from the right thigh was epidermizationed into the right extra auricular canal from its entrance to the outside of the eardrum ring. d The otoscopic finding 8 months after the operation. No recurrence of the vascular lesion was seen in the external auricular canal or tympanic membrane.
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Fig1
On physical examination, right otoscopy revealed a soft mass totally filling the external auditory canal and hiding the entire tympanic membrane (Figure 1). We transplanted a skin graft excised from her right thigh to the right external auditory canal (Figure 1).
Case 1: Enhanced CT scan of temporal bone, axial view a and coronal view b demonstrates a soft-tissue mass (arrow) lateral to the tympanic membrane that fills the right external auditory canal without involvement of the tympanum. There is no evidence of bone erosion, and the tympanic membrane, middle ear, and ossicles appear normal. Magnetic resonance imaging (MRI) of the skull base shows an external auditory canal mass (arrowhead) that is slightly hypointense in a T1-weighted image (c), and hyperintense in T2-weighted images (d).
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Fig2
T2-weighted images (Figure 2). This finding was considered to be a vascular lesion. There were no feeding vessels to a mass found by magnetic resonance angiography (MRA).
Case 1: a Pathogenic examination reveals that capillary vessels (arrow) consisting of a monolayer of endothelial cells increasing in the epidermis. This appearance is characteristic of vascular tumors (haematoxylin and eosin, original magnification x200).
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Fig3
Histopathological analysis revealed capillary vessels consisting of a monolayer of endothelial cells increasing in the epidermis (Figure 3).
PMC4486653_02
PMC4486653_03
Case 3: a Soft-tissue mass filling the left auditory canal without involvement of the bony canal when he was treated for otitis media 4 months before our medical examination. b An enhanced CT scan of the temporal bone reveals an isolated enhanced soft tissue mass in the posterior-inferior wall. c Left otoscopy reveals red granulation tissue, and the tympanic membrane cannot be recognized. In later otoscopy d, the mass was markedly smaller.
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Fig4
Otoscopy revealed red granulation tissue and his left tympanic membrane could not be seen (Figure 4).
Case 3: Microscopic examination of the tissue demonstrated expanded vessels (arrow) increased with inflammatory cells. The appearance is characteristic of vascular tumors (haematoxylin and eosin, original magnification x200).
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Fig5
The appearance was characteristic of vascular tumors (Figure 5).