Cytology Weekly Cases

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Cytopathology Challenge! Weekly Cases
September 15th, 2008
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• 35 year old female. Breast FNA
• Apocrine metaplasia
• Suspicious for malignancy
• Ductal adenocarcinoma
• Squamous cell carcinoma
• Amoeba

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3

• 34 year old female. ThinPrep pap
• Reactive endocervical cells
• Benign endometrial cells
• ASCUS
• LSIL
• HSIL

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4

• Pericardial fluid
• Benign mesothelial cells
• Infectious pericarditis
• Adenocarcinoma
• D. Melanoma
• E. Amoeba
• Compare malignant cells to a sheet of reactive
  mesothelial cells in the upper left hand corner.

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5

• Pleural fluid
• Reactive mesothelial cells
• Mesothelioma
• Adenocarcinoma
• Squamous cell carcinoma
• Small cell carcinoma

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6

• Sputum
• Negative
• Amoeba
• Candida
• Pneumocystis
• Candida and Pneumocystis
• Did you see the small intracystic trophozoite in
  the Pneumocystis?

5
7

• Urine
• Negative
• Low grade TCC
• High grade TCC
• Metastatic prostatic carcinoma
• Pinworm

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8

• ThinPrep pap
• Squamous metaplasia
• Reactive endocervical cells
• ASC-US
• LSIL
• HSIL

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• ThinPrep pap
• Reactive
• Endocervical cells
• ASC-US
• LSIL
• HSIL

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• Bronchoalveolar lavage
• A. Aspergillus
• B. Mucor
• C. Candida
• D. Fusarium
• Scedosporium
• Septate hyphae with parallel walls and acute
  angle branching.

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• Liver FNA
• Negative
• Amoebic abscess
• Metastatic adenocarcinoma
• Metastatic squamous cell ca
• Hepatoma
• Malignant hepatocytes with pigment in cytoplasm
  and intranuclear inclusions.

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