Case #387 – January 2015

Case Description

A 71-year-old female presented to her health care provider with a nodule on her back. The nodule was removed and sent to Pathology for histological work-up. Tissue was sectioned, stained with hematoxylin-and-eosin (H & E) and examined by the attending pathologist and in turn forwarded to the CDC-DPDx for diagnostic assistance. A brief pathology report indicated a possible helminth infection. Figure A was taken at 100x, Figures B and C at 200x, and Figure D at 400x magnification. What is your diagnosis? Based on what criteria?

Figure A

Figure B

Figure C

Figure D

Images presented in the monthly case studies are from specimens submitted for diagnosis or archiving. On rare occasions, clinical histories given may be partly fictitious.

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