Transthoracic fine-needle aspiration cytology of non-invasive, low-grade urothelial carcinoma with lung metastasis: A case report with review of the literature

VURAL Ç., Yildiz K., ÇABUK D., Akgul A.

JOURNAL OF CYTOLOGY, vol.32, no.2, pp.132-135, 2015 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 2
  • Publication Date: 2015
  • Doi Number: 10.4103/0970-9371.160572
  • Journal Name: JOURNAL OF CYTOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.132-135
  • Keywords: Cytology, FNAC, low-grade urothelial carcinoma, lung, metastasis, TRANSITIONAL-CELL CARCINOMA, BLADDER-CANCER, FEATURES
  • Kocaeli University Affiliated: Yes

Abstract

Radiological analyses in a 61-year-old patient being followed since 2005 for low-grade, non-invasive urothelial carcinoma (UC) (Ta) revealed a 5-cm pleural-based mass in the lower lobe of the right lung for which a subsequent transthoracic fine-needle aspiration cytology was performed. Upon observing the carcinoma cells consistent with UC metastasis, systemic chemotherapy was commenced. The patient underwent a metastatectomy based on the thoracic computerized tomography scan performed on the 4 (th) month of treatment, which revealed notable regression. The resected tumor was morphologically similar to cells seen in the transthoracic fine-needle aspiration and was immunohistochemically positive for p63, uroplakin, thrombomodulin, CK7 and CK20 at varying degrees but was negative for TTF-1. We report a case of metastatic UC of the lung in a patient who had had a low-grade superficial UC of the urinary bladder and we discuss the cytopathological features of this rare entity in light of the literature.