Comparison of 18F-PSMA-1007 and 18F-Choline PET/CT in prostate cancer patients with biochemical recurrence: a phase 3, prospective, multicenter, randomized study.

OBJECTIVES: This prospective, multicenter, open-label, randomized, crossover trial study was to evaluate the diagnostic performance of 18F-PSMA-1007 (PSMA) vs. 18F-Choline PET/CT (FCH) in prostate cancer (PCa) patients (pts) with biochemical recurrence (BCR). METHODS: One hundred eighty-six pts, who have undergone primary definitive treatment for PCa with BCR, were recruited to this prospective study. All pts underwent one PSMA and one FCH PET/CT examination in randomized order within a time frame of 8 days and were followed up for at least 6 months (182 ±â€…10 days). RESULTS: Recurrence of PCa was observed in 176 out of 186 pts. The overall correct detection rate (DR) was 84% (95% CI 0.7967-0.8830) for PSMA and 69% (95% CI 0.6191-0.7489) for FCH, yielding a difference in proportion of 16% ( P  < 0.0001). PSMA had a sensitivity of 0.8464 and FCH 0.6857 with an odds ratio of 2.5259 ( P  < 0.0001), with statistically significant greater sensitivity of PSMA (ORs, 2.7877 and 2.1283 respectively) ( P  < 0.0001). PET/CT imaging led to a more accurate diagnosis in 166 (89.2%) pts, of which PSMA had contributed more than FCH in 91 (54.8%) of them. The DR for cutoff point PSA ≤ 1 ng/ml was higher for PSMA compared to FCH (61.8% vs. 39.5%). DR value of 51.6% for PSMA reached at PSA ≤ 0.3 ng/ml, while FCH reached that DR value with PSA ≤ 2.2 ng/ml. CONCLUSION: 18F-PSMA-1007 is more efficacious than 18F-Choline for the identification metastatic lesions both in patient and in regional level analysis in PCa patients with BCR.

A unique case of aggressive uterine cancer in a 45-year-old man with persistent Müllerian duct syndrome.

OBJECTIVE: Persistent Müllerian Duct Syndrome (PMDS), one of the causes of male pseudohermaphroditism, is a rare syndrome characterized by the presence of internal female genitalia (uterus, fallopian, tubes, cervix and upper vagina) in otherwise phenotypically and normally virilized men. METHODS: We present the 4th documented case of uterine malignancy in a 45-year-old man with PMDS presenting with lower abdominal protuberance and hematuria. RESULTS: Although testicular malignancies are common in undescended testis associated with PMDS, very few cases of müllerian duct malignancies have been reported. CONCLUSIONS: Persistent mullerian duct syndrome can be associated with aggressive non-testicular malignancies, especially uterine cancer, in normally virilized males.

OBJETIVOS: El síndrome de persistencia del Conducto de Müller (SPCM), una de las causas de pseudohermafroditismo masculino, es un síndrome raro caracterizado por la presencia de genitales internos femeninos (útero, trompas de falopio, cervix y fondo vaginal) en pacientes varones fenotipicamente y con virilización normal. MÉTODOS: Presentamos el 4º caso documentado de tumor maligno uterino en un hombre de 45 años con SPCM que presenta protuberancia abdominal inferior y hematuria. RESULTADOS: Aunque los tumores malignos testiculares son frecuentes en testículos no descendidos asociados con SPCM, se han comunicado muy pocos casos de tumores malignos del conducto de Müller. CONCLUSIONES: El síndrome de persistencia del Conducto de Müller se puede asociar con tumores malignos no testiculares agresivos, especialmente cáncer uterino en hombres normalmente virilizados.