Adult primary prostate sarcoma: A multi-center cohort study and comparison between Chinese and American cases

BACKGROUND/OBJECTIVES

To assess the effects of clinical factors and treatments on the overall survival (OS) of patients with prostate sarcomas.

METHODS

We reported 41 cases diagnosed with prostate sarcomas from eight hospitals in China and retrospectively analyzed the prognostic factors by combining our data with cases from five previously published cohorts, including one extra Chinese cohort and four cohorts from US cohorts. Additionally, we investigated the differences in treatment regimens between China (n = 66) and the USA (n = 74).

RESULTS

The median survival time of the 41 cases was 18.6 months (95% confidence interval [CI]: 13.9-23.2). The status of negative distant metastasis (P = 0.004) and radical tumor resection with negative margin (P = 0.001) were significantly associated with better overall survival, whereas age, tumor size, duration of initial symptoms, and chemo/radiotherapy were not significantly related to OS. The survival time was longer in patients with rhabdomyosarcoma than in those with leiomyosarcoma (P = 0.049). Combined analysis of the current and 5 prior cohorts showed that more patients in the US cohorts underwent radical surgery (P = 0.005), and the overall survival was better among those with radical cystoprostatectomy compared to those with radical prostatectomy alone (P = 0.008).

CONCLUSION

Radical resection to achieve a negative margin contributes to better survival for patients with prostate sarcoma.

Complete resection of adult prostatic rhabdomyosarcoma with 3D video and printing model: A case report and literature review

Prostatic rhabdomyosarcoma (RMS) is a subtype of prostate sarcoma which is rarely reported in adults and usually huge in size. Although there is no consensus on the standard therapy to prostatic RMS, complete resection with negative margin is identified as the best way for maximum survival time. However, to remove a much enlarged prostate completely from a RMS patient is still a very difficult task for a skilled urologist so far. As three-dimension (3D) technology becomes more widely used in medicine, surgeons have the opportunity to challenge previously impossible surgery. In this paper, we reported a 36-year-old male patient with a 9.6*5.3*7.6 cm prostatic RMS. With the aid of 3D reconstructed video and printing model, the giant tumor was entirely removed without surgery complications and adjacent organs injury. The patient was alive and had no recurrence after 18 months from surgery. This case revealed that 3D reconstruction technology could help in the preoperative assessment and gave benefits to both patients and surgeons.

CT Imaging Findings of Metastatic Spindle Cell Sarcoma of Prostate: A Case Report and Review of the Literature

Sarcomas of the prostate are rare tumors. Imaging plays an important role in the management and diagnosis of patients with prostate sarcomas. Their clinic-pathologic features are well described, but the imaging features of these tumors have rarely been documented in the literature and have appeared mainly as case reports. Herein, we present a rare case of metastatic spindle cell sarcoma of prostate with computed tomography imaging findings.