Pleural fluid cytology positive for malignancy; pleural biopsy with metastatic adenocarcinoma
- Event date
- 2020-10-17 Exact date
- Document date
- 2020-10-22
- Entry date
- 2026-11-05
- Evidence type
- Laboratory report
- Source reference
- Laboratory report dated 2020-10-22
- Certainty
- Documented
- Review
- Editorial review · Editorial review only: transcription from the original report checked against the document (identifiers omitted); publication approved by the case owner on 5 November 2026. No clinical-specialist review. · 2026-11-05
Summary
Pleural fluid and a fragment of pleura taken on 17 October 2020 were reported on 22 October 2020 by a private pathologist: the cytology was positive for malignancy and the pleural biopsy showed metastatic infiltration by adenocarcinoma with zones of mucinous aspect.
Documented findings
70 cc of reddish pleural fluid (ten Papanicolaou slides) and a 4 x 1 x 0.2 cm tissue fragment. Cytology: small groups of epithelial cells with oval and cuboidal nuclei and coarse, poorly distributed chromatin on a dense proteinaceous background; positive for malignancy. Histology: pleura with abundant clusters of cells in nests, loss of the nucleus-cytoplasm ratio, dense coarse chromatin, some atypical mitoses, mucinous aspect. Diagnoses: pleural fluid cytology positive for malignancy; pleural biopsy with metastatic infiltration by adenocarcinoma (zones of mucinous aspect).
Uncertainty
The report states the primary site only as 'metastatic adenocarcinoma'; no immunohistochemistry is mentioned. The collection date, 17 October 2020, coincides with the laparoscopy recorded in the IMSS summary, but this report does not name the procedure.
Related treatment context
No treatment-context entry is linked to this event.
