Analysis by step sectioning of early invasive bladder cancer with special reference to G3·pT1 disease

Tadao Kakizoe, Ken ichi Tobisu, Takashi Mizutani, Masakazu Tsutsumi, Yoshinori Tanaka, Michiie Sakamoto

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Eighty cases of cystectomized and step-sectioned pT1 transitional cell carcinomas of various grades were analyzed. During the same period, 30 consecutive cases of pT2 carcinomas were also cystectomized and examined for comparison. This is a cross-sectional study of a variety of cases of bladder cancer, designed to delineate the characteristics of G3·pT1 disease. Tumors in this series had a full set of various pathological findings; grades 1 to 3, stages Ta-T1-T2, papillary-papillonodular-nodular tumor configuration, α-β-γ type of invasion, presence/of lymphatic and venous involvement, and presence of associated carcinoma in situ/dysplasia. There is a distinct tendency of stepwise disease progression, such as grade 1→3, stage T1→T2, papillary→nodular configuration, and α→γ invasion, these factors being mutually related. We noted a similarity between tumor groups containing G3 component, such as G2-3·pT1, G3>2·pT1, G1-3·pT2, and G3·pT2. These tumors are different from groups such as G1-2·pT1, G2·pT1 and G2>3·pT1 in terms of tumor configuration and type of invasion. As regards pT1 having G3 components, early cystectomy seems to be the surest treatment. Whenever one adopts a conservative policy in treatment of these tumors, extreme care should be taken to monitor tumor progression.

Original languageEnglish
Pages (from-to)1354-1358
Number of pages5
JournalJapanese Journal of Cancer Research
Volume83
Issue number12
Publication statusPublished - 1992 Dec
Externally publishedYes

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Urinary Bladder Neoplasms
Neoplasms
Transitional Cell Carcinoma
Cystectomy
Carcinoma in Situ
Disease Progression
Cross-Sectional Studies
Carcinoma

Keywords

  • Bladder cancer
  • Cystectomy
  • G3·pT1 tumor

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Analysis by step sectioning of early invasive bladder cancer with special reference to G3·pT1 disease. / Kakizoe, Tadao; Tobisu, Ken ichi; Mizutani, Takashi; Tsutsumi, Masakazu; Tanaka, Yoshinori; Sakamoto, Michiie.

In: Japanese Journal of Cancer Research, Vol. 83, No. 12, 12.1992, p. 1354-1358.

Research output: Contribution to journalArticle

Kakizoe, T, Tobisu, KI, Mizutani, T, Tsutsumi, M, Tanaka, Y & Sakamoto, M 1992, 'Analysis by step sectioning of early invasive bladder cancer with special reference to G3·pT1 disease', Japanese Journal of Cancer Research, vol. 83, no. 12, pp. 1354-1358.
Kakizoe, Tadao ; Tobisu, Ken ichi ; Mizutani, Takashi ; Tsutsumi, Masakazu ; Tanaka, Yoshinori ; Sakamoto, Michiie. / Analysis by step sectioning of early invasive bladder cancer with special reference to G3·pT1 disease. In: Japanese Journal of Cancer Research. 1992 ; Vol. 83, No. 12. pp. 1354-1358.
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