UPMC Dermatopathology “Case of the Month” Presentations

UPP - Department of Dermatology, Dermatopathology Unit

5230 Centre Avenue (412) 864-3860 Pittsburgh, PA 15213 (412) 864-3890 FAX

Case Authors: Peggy Lin MD, Michael Y. Zhang MD PhD, Drazen Jukic MD PhD

MAY 2004 CASE OF THE MONTH

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Figure A

Figure B

Figure C

Figure D

Figure E

Figure F

Figure G

Figure H

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Legend:

Figure A: Low magnification view of the tumor with ulceration and adjacent solar lentigo (4x, H&E).
Figure B: Lower potion of the tumor (10x, H&E).
Figure C-D: Different areas of the tumor demonstrating the glandular-type arrangement and associated lymphoplasmacytic infiltrate.
There are prominent nuclear pleomorphism and frequent mitoses (20x, H&E).
Figure E: Area of the tumor exhibiting typical features of squamous differentiation (10x, H&E)
Figure F: Pancytokeratin stain (AE1/AE3, immunoperoxidase).
Figure G: High molecular weight cytokeratin stain (CK903, immunoperoxidase).
Figure H: CEA stain (Immunoperoxidase). Note the adjacent eccrine glands are positive.

Figure A	Figure B	Figure C	Figure D
Figure E	Figure F	Figure G	Figure H
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