[Urinary stone disease indicating genetic background].
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Acidosis, Renal Tubular↗
Biomedical subjects
Hiroaki Osanai
Publications and source records attributed to Hiroaki Osanai.
[Paravesical granuloma after inguinal herniorrhaphy].
Paravesical granuloma is a rare complication after inguinal herniorrhaphy. We report a case of this rare disease and review 27 previously reported cases. A 70-year-old male presented with hematopyuria. He had undergone right inguinal herniorrhaphy five years earlier. On presentation, the right inguinal area was wet with exudate. Cystoscopy revealed edematous mucosa on the right side of the bladder dome, but transurethral bladder biopsy demonstrated no malignancy. CT identified a 2-cm diameter mass with heterogeneous appearance on the right side of the bladder dome. Treatment with antibiotics proved ineffective and en bloc excision of the tumor with partial cystectomy was performed. Symptoms subsequently resolved completely. Histopathologically, the tumor represented inflammatory granuloma, and a mesh thought to be a remnant from the previous herniorrhaphy was found in the central portion of the tumor. Paravesical granuloma should be considered for patients with continuous hematopyuria and a history of inguinal herniorrhaphy.
Aged↗
[Tumor enucleation for pelvic schwannoma: a case report].
A 36-year-old man with a complaint of pollakisuria visited our hospital. A non-displaceable, palm-sized tumor was palpable in the lower abdomen. Laboratory data were normal except for slightly high serum S100 protein. Intravenous pyelography revealed hydronephrosis on the right side and deviation of the bladder to the left. Computed tomogaphy revealed a heterogenous tumor in the pelvis with a cystic lesion and calcification. The tumor was 16 x 12 x 11 cm in size and in contact with the sacrum. The tumor was extirpated following diagnosis as a benign schwannoma by needle biopsy. The pelvic cavity was occupied by the tumor rigidly adhered to the sacrum. Although serious complications, such as bleeding and nerve injury were apprehended, we incised the tumor capsule and enucleated the contents as much as possible. The histopathological diagnosis of the resected specimen was benign schwannoma, type Antoni A. In the last 10 years, 37 cases of pelvic schwannoma have been reported in the Japanese literature. In most of them, surgical extirpation was difficult to perform because of adhesion to the sacrum. If the tumor is confirmed benign from histopathologic findings preoperatively, tumor enucleation may become a therapeutic option.
Adult↗
[Extracorporeal shock wave lithotripsy for ureteral stone in patient with implanted cardiac pacemaker: a case report].
We report a case of extracorporeal shock wave lithotripsy (SWL) for ureteral stone in patient with implanted cardiac pacemaker. A 68-year-old woman was admitted to our hospital for left back pain due to left single ureteral stone (13 x 7 mm) in 2002. A permanent cardiac pacemaker has been implanted for sick sinus syndrome in 1997. After evaluation for cardiac function and pacemaker function by a cardiologist and a pacemaker technician, SWL (MFL 5000, Dornier) was performed without changing pacemaker mode (DDD mode). Shock waves were incorrectly exposed a few time triggered by arterial pacing amplitude, but no cardiovascular event or malfunction of the pacemaker was occurred during or after SWL. The ureteral stone was successfully fragmented with 2,400 shock waves (24 kV) and the fragments were delivered immediately.
Aged↗