History

This is a 47 year old man who presents with a scaly nodule on the shoulder.

Microscopic Findings

			Sections show a dermal cyst with numerous papillary projections and a pronounced keratotic plug. The lesion is circumscribed and demarcated from the surrounding dermis.
	Figure 1

			Multiple acantholytic cells cells with corp ronds and other cells approaching corp grains are present.
	Figure 2

			Acantholysis is also suprabasilar with the keratinocytes showing no significant cytologic atypia.
	Figure 3

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Last Updated 12/17/2002

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