Korean J Cytopathol.  1999 Jun;10(1):67-71.

Urinary Cytologic Findings of Plasmacytoid Transitional Cell Carcinoma of the Urinary Bladder: A Case Report

• Park MO
• Kim YJ
• Park JB

Abstract

We report a case of 53-year-old man with plasmacytoid transitional cell carcinoma of the urinary bladder, which may be confused with plasmacytoma. The patient initially presented with gross hematuria and dysuria for two months. Cystoscopy and radiologic studies revealed multiple intraluminal protruding masses on the urinary bladder invading perivesical fat tissue. After urinary cytologic examination and cystoscopic biopsy, radical cystectomy and pelvic lymph node dissections were done. Urine cytology showed single cells and poorly cohesive cells with round eccentric nuclei, bi-or multi-nucleation, indistinct nucleoli, coarse chromatin, and abundant basophilic cytoplasm within relatively clear background. The cytologic findings of tumor cells were similar to the plasma cells seen in plasmacytoma. The tumor of the bladder was composed of discohesive, individual cancer cells with diffuse pattern that simulated lymphoma or plasmacytoma. Immunohistochemical and electron microscopic studies clearly established the epithelial nature of the neoplasm. Recognition of this plasmacytoid type of transitional cell carcinoma of the urinary bladder can avoid the misdiagnosis.

Keyword

Urine cytology; Urinary bladder; Plasmacytoid type; Transitional cell carcinoma

MeSH Terms

Basophils
Biopsy
Carcinoma, Transitional Cell*
Chromatin
Cystectomy
Cystoscopy
Cytoplasm
Diagnostic Errors
Dysuria
Hematuria
Humans
Lymph Node Excision
Lymphoma
Middle Aged
Plasma Cells
Plasmacytoma
Urinary Bladder*
Chromatin