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Repair of obstructive azoospermia caused by childhood herniorrhaphy may be difficult. Therefore, intracytoplasmic sperm injection using testicular sperm is performed. However, vasovasostomy combined with laparoscopic surgery is challenging.

A 42-year-old man underwent inguinal hernia repair at age 3. He had normal testicular size, azoospermia, normal hormone levels (follicle-stimulating hormone, luteinizing hormone, and testosterone), absence of Y chromosome micro deletion, and karyotype46XY, t(121)(p34.1q22.3). He was diagnosed with obstructive azoospermia. Repeated intracytoplasmic sperm injections using testicular sperm resulted in miscarriages. Vasovasostomy combined with laparoscopic surgery was subsequently performed. Postoperative semen analysis result was almost normal. After intracytoplasmic sperm injection of ejaculated sperm, his wife got pregnant.

Even if patients have chromosomal abnormalities, performing microsurgical re-anastomosis first is recommended. To our knowledge, this is the first case of a laparoscopy-assisted vasovasostomy for post-herniorrhaphy vas deferens obstruction in Japan.

Even if patients have chromosomal abnormalities, performing microsurgical re-anastomosis first is recommended. To our knowledge, this is the first case of a laparoscopy-assisted vasovasostomy for post-herniorrhaphy vas deferens obstruction in Japan.

Cellular angiofibroma is a benign mesenchymal tumor that is rare and has a good prognosis. However, preoperative distinction of cellular angiofibroma from malignant tumors is difficult.

A 77-year-old man complained of a left inguinal mass, which was a solid, painless, mobile tumor measuring approximately 40mm and contacted with the left spermatic cord. Based on his age, the location and imaging findings, a preoperative diagnosis of myxoid liposarcoma was made. The patient underwent left high inguinal orchiectomy with complete resection of the tumor. Histologically and immunohistochemically, the tumor had no feature of malignancy. A postoperative diagnosis of cellular angiofibroma was made. click here The patient remains free of disease recurrence 12months after surgery.

Cellular angiofibroma is a benign but rare tumor, which is sometimes difficult to distinguish from malignant neoplasms. Further studies are needed to accurately preoperatively diagnose this tumor.

Cellular angiofibroma is a benign but rare tumor, which is sometimes difficult to distinguish from malignant neoplasms. Further studies are needed to accurately preoperatively diagnose this tumor.

Treatment for oligometastasis in prostate cancer has changed from systemic therapy to metastatic lesion-targeted therapy. Early detection of metastatic lesions and assessment of the treatment response have become very important. Therefore, we started to perfume assessments with whole-body magnetic resonance imaging, especially diffusion-weighted imaging with background body signal suppression, as a modality to detect metastasis in patients with prostate cancer.

We encountered two cases of castration-resistant prostate cancer in which oligometastasis was detected by diffusion-weighted imaging with background body signal suppression. Metastasis-directed therapy was initiated for to treat the lesions in each case. The treatment was effective for disease control and symptom relief. Diffusion-weighted imaging with background body signal suppression could detect new lesions at an early phase and delineate changes in lesions immediately after therapy.

Diffusion-weighted imaging with background body signal suppression enables early decision-making for metastasis-directed therapy compared with conventional imaging modalities. Further, metastasis-directed therapy targeting oligometastatic lesions detected by diffusion-weighted imaging with background body signal suppression may improve patients' overall survival and quality of life.

Diffusion-weighted imaging with background body signal suppression enables early decision-making for metastasis-directed therapy compared with conventional imaging modalities. Further, metastasis-directed therapy targeting oligometastatic lesions detected by diffusion-weighted imaging with background body signal suppression may improve patients' overall survival and quality of life.

We report the case of a patient with metastatic castration-resistant prostate cancer with microsatellite instability-high who was treated with pembrolizumab after cabazitaxel administration.

A 58-year-old patient with heavily pretreated metastatic castration-resistant prostate cancer, whose prostate surgical specimen was disclosed as microsatellite instability-high, underwent pembrolizumab therapy. After initiation of pembrolizumab, his prostate-specific antigen level decreased, imaging findings showed good response with lymph node shrinkage, and his walking difficulty decreased dramatically.

The rarity of microsatellite instability-high tumor in castration-resistant prostate cancer may hamper pembrolizumab administration. This potentially active agent should be considered as part of a treatment regimen for patients with microsatellite instability-high castration-resistant prostate cancer. To the best of our knowledge, this is the first report of a Japanese castration-resistant prostate cancer patient who demonstrated clinical benefit from pembrolizumab treatment.

The rarity of microsatellite instability-high tumor in castration-resistant prostate cancer may hamper pembrolizumab administration. This potentially active agent should be considered as part of a treatment regimen for patients with microsatellite instability-high castration-resistant prostate cancer. To the best of our knowledge, this is the first report of a Japanese castration-resistant prostate cancer patient who demonstrated clinical benefit from pembrolizumab treatment.

Prostatic basal cell carcinoma is an extremely rare tumor, exhibiting various histopathological features and clinical spectrums of disease.

A 69-year-old male presented to our department with 2years of voiding difficulty and intermittent macroscopic hematuria. With a presumed diagnosis of benign prostatic hyperplasia, he underwent a transurethral resection of the prostate. Pathological examination revealed atypical basaloid cells forming solid nests. Robot-assisted radical prostatectomy was subsequently performed, confirming a diagnosis of basal cell carcinoma with coexisting acinar adenocarcinoma.

Although more cases of basal cell carcinoma are indolent than aggressive, there is no reliable method of differentiation between these presentations. Thus, we recommend radical surgery and 6-monthly disease surveillance until more is discovered about this very rare malignancy.

Although more cases of basal cell carcinoma are indolent than aggressive, there is no reliable method of differentiation between these presentations.