Dear Editor, Soft tissue chondromas are rare tumors that most often occur in the fingers, less commonly in the hands and feet, and rarely in other areas of the body [1]. There has been one previously reported extraskeletal chondroma of the urinary bladder, which occurred in a patient with no prior urologic history [2].A 62-year-old female presented with dysuria, frequency, nocturia, lower abdominal pain, and constipation that had been worsening over the past 4 years. Cystoscopy showed patchy inflammation and erythema, especially pronounced caudad to the right ureteral orifice. Bladder biopsy demonstrated microinvasive highgrade urothelial carcinoma. Cystoscopy with transurethral resection was performed 1.5 months after diagnosis. The prior biopsy site was visualized and resected.In addition, a solid, subepithelial 3-cm mass inconsistent with urothelial carcinoma was seen on the anterior bladder wall. Microscopic examination of the mass revealed a well-circumscribed nodule of mature hyaline cartilage within the lamina propria, surrounded by dense fibrous tissue (Fig. 1a) characterized by sparse, bland-appearing, single cells in the lacunae on a smooth, pale blue, myxoid background with rare calcifications (Fig. 1b). The lesion immunohistochemically expressed S100 (Fig. 1c) and vimentin but was negative for AE1/3, p53, and Ki-67. No urothelial tumor was present. After transurethral resection, the patient completed 6 weeks of intravesical instillation induction Bacillus Calmette-Guerin chemotherapy followed by cystoscopy that failed to demonstrate recurrent tumor.The bladder chondroma we have described is the second case in the literature. The first published bladder chondroma occurred in a 63-year-old female without previous urologic complaints who presented with pain in her left iliac fossa [2]. Cystoscopy identified a submucosal mass on the ventral dome of the bladder that was treated with transurethral resection [2]. The histologic and immunohistochemical features were similar to our findings with bland, mature hyaline cartilage positive for S100 and vimentin and negative using AE1/3, p53, and Ki-67 [2]. Our case is unique because the bladder chondroma was diagnosed in a patient with a recent diagnosis of high-grade urothelial carcinoma. It is