History

This is a 46 year old man with a long standing history of chronic joint pain. He presents with a subcutaneous nodule over the left elbow.

Microscopic Findings

			Sections show palisading granulomas surrounding an amorphous eosinophilic to amphophilic staining debris.
	Figure 1

			Higher power reveals a fine crystals present within the eosinophilic center surrounded by epithelioid histiocytes and rare giant cells.
	Figure 2

			In other sections of the same biopsy, palisading necrobiotic granulomas are noted.
	Figure 3

			On higher power, the eosinophilic center reveals areas of necrobiosis with rare nuclear dust and no evidence of crystals. No atypia of the epithelioid histiocytes is noted.
	Figure 4

What is your diagnosis?

Last Updated 1/21/2003

Send mail to The Doctor's Doctor with questions or comments about this web site.
Copyright © 2004 The Doctor's Doctor