Adenocarcinoma of the prostate involving 2 cell types (prostate specific antigen producing and carcinoembryonic antigen producing) with selective metastatic spread

D. A. Guthman, G. M. Farrow, R. P. Myers, R. G. Ferrigni, M. M. Lieber

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11 Scopus citations

Abstract

Of 3 patients with clinically localized adenocarcinoma of the prostate 2 were treated by radical prostatectomy and 1 was treated with radiation therapy. Serum prostate specific antigen (PSA) values were elevated before therapy. After treatment the PSA levels were decreased to zero. All 3 patients later had evidence of metastatic tumor spread to the liver with elevation of serum carcinoembryonic antigen but not PSA. Immunohistochemical staining of the 2 primary tumors from the prostatectomy specimens identified 2 cell clones, one immunoreactive to PSA and prostatic acid phosphatase (PAP) and nonimmunoreactive to carcinoembryonic antigen, and the other immunoreactive to carcinoembryonic antigen but not PSA or PAP. Biopsy of a hepatic metastasis in 2 patients confirmed anaplastic carcinoma of the carcinoembryonic antigen-producing cell type. Immunohistochemical staining of a lymph node metastasis identified the PSA-producing cell type only. Such results suggest selective metastatic spread of each cell type to its own organ tropic site. Occasional carcinoembryonic antigen-producing prostate cancers may metastatasive to the liver. Serum carcinoembryonic antigen measurements occasionally may be useful in the management of certain prostate adenocarcinoma patients.

Original languageEnglish (US)
Pages (from-to)854-856
Number of pages3
JournalJournal of Urology
Volume146
Issue number3
DOIs
StatePublished - Jan 1 1991

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Keywords

  • Adenocarcinoma
  • Carcinoembryonic antigen
  • Prostate
  • Tumor antigens

ASJC Scopus subject areas

  • Urology

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