{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,14]],"date-time":"2026-11-14T10:14:15Z","timestamp":1794651255880,"version":"4.9.1"},"reference-count":16,"publisher":"Archives of Pathology and Laboratory Medicine","issue":"7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2002,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Microcystic transitional cell carcinoma is a rare variant of urothelial carcinoma; to date, it has been described only in the urinary bladder. We report 2 cases of microcystic transitional cell carcinoma arising in the renal pelvis. The first case occurred in a 73-year-old man with a history of superficially invasive transitional cell carcinoma who presented with macroscopic hematuria and anemia. The second case occurred in a 62-year-old woman who had no relevant medical history and presented with hematuria. Computed tomographic scan revealed a tumor of the renal pelvis. In both cases, microscopic examination showed invasive transitional cell carcinoma with prominent cystic features. The cysts were irregular in size and were deeply infiltrative. The cysts were lined by single or multiple layers of cuboidal or flattened cells with minimal cytological atypia. The first patient died of his disease 18 months after presentation. The second patient remained well at her 6-month follow-up examination. Microcystic transitional cell carcinoma is an unusual, deceptively bland variant of urothelial carcinoma, which can mimic benign lesions.<\/jats:p>","DOI":"10.5858\/2002-126-0859-mtcc","type":"journal-article","created":{"date-parts":[[2021,1,29]],"date-time":"2021-01-29T04:15:09Z","timestamp":1611893709000},"page":"859-861","source":"Crossref","is-referenced-by-count":37,"title":["Microcystic Transitional Cell Carcinoma"],"prefix":"10.5858","volume":"126","author":[{"given":"Xavier","family":"Leroy","sequence":"first","affiliation":[{"name":"From the Departments of Pathology (Drs Leroy, Leteurtre, Augusto, and Gosselin) and Urology (Drs De La Taille and Biserte), University Hospitals of Lille, Lille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emmanuelle","family":"Leteurtre","sequence":"additional","affiliation":[{"name":"From the Departments of Pathology (Drs Leroy, Leteurtre, Augusto, and Gosselin) and Urology (Drs De La Taille and Biserte), University Hospitals of Lille, Lille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandre","family":"De La Taille","sequence":"additional","affiliation":[{"name":"From the Departments of Pathology (Drs Leroy, Leteurtre, Augusto, and Gosselin) and Urology (Drs De La Taille and Biserte), University Hospitals of Lille, Lille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Augusto","sequence":"additional","affiliation":[{"name":"From the Departments of Pathology (Drs Leroy, Leteurtre, Augusto, and Gosselin) and Urology (Drs De La Taille and Biserte), University Hospitals of Lille, Lille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacques","family":"Biserte","sequence":"additional","affiliation":[{"name":"From the Departments of Pathology (Drs Leroy, Leteurtre, Augusto, and Gosselin) and Urology (Drs De La Taille and Biserte), University Hospitals of Lille, Lille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bernard","family":"Gosselin","sequence":"additional","affiliation":[{"name":"From the Departments of Pathology (Drs Leroy, Leteurtre, Augusto, and Gosselin) and Urology (Drs De La Taille and Biserte), University Hospitals of Lille, Lille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3906","reference":[{"key":"i1543-2165-126-7-859-b1","series-title":"Semin Diagn Pathol","first-page":"98","article-title":"Carcinoma of the urinary bladder: a review of its diverse morphology.","volume":"14","author":"Eble, J. N.","year":"1997","unstructured":"Eble, J. N. and R. H.Young. Carcinoma of the urinary bladder: a review of its diverse morphology.Semin Diagn Pathol1997. 14:98\u2013108."},{"key":"i1543-2165-126-7-859-b2","series-title":"Adv Anat Pathol","first-page":"244","article-title":"Deceptively bland transitional cell carcinoma of the urinary bladder: further characterization of subtle and diagnostically treacherous pattern of invasion in urothelial neoplasia.","volume":"4","author":"Ro, J. Y.","year":"1997","unstructured":"Ro, J. Y., R. L.Lapham, and M. B.Amin. Deceptively bland transitional cell carcinoma of the urinary bladder: further characterization of subtle and diagnostically treacherous pattern of invasion in urothelial neoplasia.Adv Anat Pathol1997. 4:244\u2013251."},{"key":"i1543-2165-126-7-859-b3","series-title":"Am J Clin Pathol","first-page":"635","article-title":"Microcystic transitional cell carcinoma of the urinary bladder.","volume":"96","author":"Young, R. H.","year":"1991","unstructured":"Young, R. H. and L. R.Zukerberg. Microcystic transitional cell carcinoma of the urinary bladder.Am J Clin Pathol1991. 96:635\u2013639."},{"key":"i1543-2165-126-7-859-b4","series-title":"Cancer","first-page":"853","article-title":"Atypical nephrogenic metaplasia of the urinary tract.","volume":"88","author":"Cheng, L.","year":"2000","unstructured":"Cheng, L., J. C.Cheville, T. J.Sebo, J. N.Eble, and D. G.Bostwick. Atypical nephrogenic metaplasia of the urinary tract.Cancer2000. 88:853\u2013861."},{"key":"i1543-2165-126-7-859-b5","series-title":"Br J Urol","first-page":"722","article-title":"The clinical and histological features of transitional cell carcinoma of the bladder with microcysts: analysis of 12 cases.","volume":"79","author":"Paz, A.","year":"1997","unstructured":"Paz, A., L.Rath-Wolfson, and D.Lask. et al. 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