[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.163.159.27. Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Off-Center Fold
December 1998

Dome-Shaped Partly Umbilicated Tumor on the Ear

Arch Dermatol. 1998;134(12):1627-1632. doi:

Histopathologic examination showed epidermal acanthosis and nests of large, predominantly spindle cell–shaped melanocytes at the dermoepidermal junction and in the dermis (Figure 2). Some of the cells demonstrated mitotic activity. Atypical mitoses were not seen. Melanin pigment was absent.

The tumor nests were negative for anticytokeratin antibodies AE1 and AE3. They were also positive for S100 (Figure 3) and negative for HMB 45.

First Page Preview View Large
First page PDF preview
First page PDF preview
×