Case History

52-year-old male with anemia and neutropenia.

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Case History

67 y/o male with B/L renal masses, found incidentally when undergoing lung cancer screening. Left mass measures 3.3 cm on gross section. Fumarate hydratase (FH) immunohistochemistry was done, and it was retained.

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Case History

A 52-year-old man with HIV presents with weight loss and supraclavicular mass. Biopsy shows large, atypical cells with the following phenotype: CD45+, CD20-, PAX5 weak, CD3-, CD15-, CD138-, EBER-ISH+. H&E and stains for CD30 and CD79a are shown.

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Case History

The images below are from a fine needle aspiration of a cord-like subcutaneous mass along the nasolabial fold.

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Case History

82-year-old with a psychiatric history.

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Case History

A 51-year-old man presents with AKI and proteinuria. Figures A & B show light microscopy. IF and EM studies are unremarkable.

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Case History

A 60 y/o female, prior smoker, with a 2x1 cm left parotid nodule noted 3 months prior.

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Case History

50-year-old female endometrial currettings due to abnormal uterine bleeding. Patient has a history of triple-negative breast cancer. 

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Case History

A 60 year-old-male presented with a lytic lesion of the C3 spinal vertebra. What is the diagnosis? Identify the immunostain in Figure D.

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