[Invasive bladder cancer with lymphangiosis carcinomatosa and carcinoma in situ in a 19-year-old female. Case report with 21-year follow-up].

We report a 19-year-old female with a grade 2 transitional cell carcinoma of the bladder invading the lamina propria. In addition, lymphangiosis carcinomatosa and a carcinoma in situ were found. The presenting symptom was painless gross hematuria. The patient was treated with transurethral resection. No tumor recurrence occurred during the 21-year follow-up. The literature on bladder tumors in the first two decades of life is reviewed in this article.