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PURPOSE: To identify the prostate cancer detection rate on the patients who had second prostate biopsy out of the patients who were reported negative in their first biopsy. MATERIALS AND METHODS: From July 2006 to February 2012, prostate biopsy was performed on 843 patients with over 4 ng/ml and on 618 biopsy negative patients PSA was performed from between 6 months and 9 months after biopsy. On 164 patients, second biopsy was performed, and 42 patients were selected. If there was less than 10% change between PSA before the prostate biopsy and PSA measured during 6 to 9 months after the first biopsy it was considered as no change. If above 10% increase, it was considered increase and if above 10% decrease it was considered as decrease. RESULTS: The cancer detection rate in PSA increase group was 20%, the detection rate in no change in PSA level but still over the normal range group 8.3%, and that in the PSA decrease group was 0%. When comparing prostate cancer group and non-cancer group, it is more probable to have prostate cancer when they are older, prostate volume is smaller and PSA density is higher. CONCLUSIONS: The second biopsy is strongly recommended when PSA level shows no change or increase, age is older, prostate volume is smaller or PSA density is higher.
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Humanos , Biopsia , Próstata , Antígeno Prostático Específico , Neoplasias de la Próstata , Valores de ReferenciaRESUMEN
Carcinoid tumors are low-grade malignant tumors arising from neuroendocrine cells. Primary renal carcinoid tumors are extremely rare, and only 56 cases have been reported in the literature. Because of the rarity of the lesion, its histogenesis and prognosis are unclear. Here we report a case of a primary renal carcinoid tumor in a 51-year-old man that was found incidentally in a medical examination and was treated by transperitoneal radical nephrectomy.
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Humanos , Persona de Mediana Edad , Tumor Carcinoide , Riñón , Nefrectomía , Células Neuroendocrinas , PronósticoRESUMEN
No abstract available.
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PURPOSE: To assess the value of MR imaging in the diagnosis of medial collateral ligament injury of the knee, we used MR imaging to evaluate the characteristic findings in MCL tears and the frequency of associated knee joint injury. MATERIALS AND METHODS: We retrospectively reviewed 26 patients within four weeks of MCL injury, analysed MR findings and correlated them with surgical findings. We evaluated discontinuity, heterogeneous signal intensityof MCL, thin band- like low signal intensity at MCL, facial edema, loss of clear demarcation of adjacent fat andalso combined bone injury, meniscus injury and other ligament injury. RESULTS: Complete MCL tears were present in 14 patients and partial tears in 12. Complete tears showed discontinuity of MCL, fascial edema and loss of clear demarcation from adjacent fat in 11 patients (79%) ; proximal MCL tears are more common than distal tears. Partial tears showed thin band-like low signal intensity within MCL, fascial edema and loss of clear demarcation fromadjacent fat in seven patients (58%) ; all patients with MCL injury showed fascial edema ; in 12 patients there was loss of clear demarcation from adjacent fat. We could not, however, distinguish between complete tears and partial tears when MCL showed heterogeneous high signal intensity. Combined bone injury in MCL tears was found in eight patients (62%) ; the most common sites of this were the lateral femoral condyle and lateral tibial plateau. There was associated injury involving other ligaments(ACL:50%; PCL: 27%). Combined meniscus injury in MCL tearswas present in 17 patients and the most common meniscus site (50%) is the posterior horn of the medial meniscus. CONCLUSION: Complete MCL tears showed discontinuity of MCL and partial tears showed a thin band-like low signal intensity within MCL. All patients with MCL injury showed fascial edema, and loss of clear demarcation fromadjacent fat. Various other injuries combine with MCL tears. MR imaging is therefore useful in the evaluation ofmedial collateral ligament injury and associated knee joint injury.