
Clinical cases
Signet Ring Cells in Pleural Effusion: Microscopy
Microscopy of a native pleural effusion smear. Detection of signet ring cells with a large vacuole in suspected metastatic adenocarcinoma.
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Microscopy of a native pleural effusion smear. Detection of signet ring cells with a large vacuole in suspected metastatic adenocarcinoma.

Cytological findings of metastatic gastric adenocarcinoma in pleural fluid: identification of signet ring cells with Papanicolaou stain.

Cytological findings in ascitic fluid from a patient with signet-ring cell adenocarcinoma: atypical cell clusters, eccentric nuclei, and elevated CA 125.