Laparoscopic Complete Urinary Tract Exenteration for a Patient with Bilateral Synchronous Renal Pelvic Carcinomas.

Bilateral synchronous renal pelvic carcinomas are rare diseases. Complete urinary exenteration or kidney-preserving procedures are two different options that confer different benefits to the patient depending on the clinical situation. A 69-year-old woman with bilateral synchronous renal pelvic carcinomas underwent laparoscopic complete urinary tract exenteration.

Urothelial carcinoma with sarcomatoid/osteosarcoma variant of the bladder: A case report.

A 67-year-old man was diagnosed with non-muscle invasive bladder cancer and underwent transurethral resection of the lesions in August 2017. The pathological findings revealed high-grade urothelial carcinoma. The tumor relapsed as urothelial carcinoma with sarcomatoid/osteosarcoma variant with vascular invasion, and transurethral resection was performed in December 2017.

Granulocytic/myeloid sarcoma with trisomy 21 presented as an epididymal tumor: A case report and review of the literature.

Myeloid sarcoma is an extramedullary tumor composed of immature myeloid cells and occurs in various extramedullary sites. We report a 48-year-old man diagnosed with myeloid sarcoma in the epididymis. He was admitted to our hospital due to a painless right intrascrotal mass.

The Belousov-Zhabotinsky Reaction in Thermoresponsive Core-Shell Hydrogel Microspheres with a Tris(2,2'-bipyridyl)ruthenium Catalyst in the Core.

The Belousov-Zhabotinsky (BZ) reaction shows temporal or spatiotemporal structures such as redox oscillation of the catalyst, [ruthenium(II)tris(2,2'-bipyridine)][PF] ([Ru(bpy)][PF]). In this study, autonomously oscillating hydrogel microspheres (microgels) were investigated, which show swelling/deswelling oscillation induced by the redox oscillation of the BZ reaction inside the gel. Despite the periodically and autonomously induced oscillation that does not require an external stimulus, it has not been possible to perform any manipulation of the oscillatory behavior over time.

Autonomously Oscillating Hydrogel Microspheres with High-Frequency Swelling/Deswelling and Dispersing/Flocculating Oscillations.

Fast swelling/deswelling and dispersing/flocculating oscillations of autonomously oscillating hydrogel microspheres (microgels) at periods of single-order seconds were accomplished. The design of the oscillating microgels is based on the incorporation of neutral and hydrophilic acrylamide monomers into conventional microgels to suppress the irreversible aggregation of the microgels during oscillation at high substrate concentrations and high temperatures in the Belousov-Zhabotinsky (BZ) reaction. In contrast to conventional microgels, the aforementioned microgels can carry out the BZ reaction under optimized conditions without irreversible aggregation at higher temperature, resulting in short oscillation periods (∼7 s) that were obtained from optical transmittance measurements.

Simultaneous Laparoscopic Surgery for Bladder Diverticulum and Urachal Remnant: A Case Report.

A 44-year-old woman visited a hospital with microscopic hematuria in June 2009. Computed tomography showed a large bladder diverticulum at right lateral wall and urachal remnant. Cystoscopic examination showed a large diverticulum at the right lateral wall that closes to the dome.

IgG4-related Periarteritis Successfully Diagnosed by an Alternative Prostate Biopsy.

A 56-year-old man was referred to our facility after developing edema in his right leg. Enhanced computed tomography (CT) revealed a periarterial soft tissue mass surrounding the right iliac artery compressing the iliac vein. His elevated serum IgG4 level indicated IgG4-related disease (IgG4-RD).

Spontaneous Passage of Left Ureteral Multiple Calculi from Caliceal Diverticular Calculi: A Case Report.

Caliceal diverticular calculi are rather fixed and they are rare to be delivered spontaneously. We experienced a case of spontaneous passage of left ureteral multiple calculi from caliceal diverticular calculi. A 65-year-old female suffered from left back pain and was referred to our hospital.