The Buschke-Loewenstein tumor

The Buschke-Loewenstein tumor, clinically indistinguishable from squamous cell carcinoma, is probably a well-differentiated carcinoma from the beginning and should be treated as such. Areas of anaplastic change that develop subsquently probably represent loss of differentiation in a previously well-differentiated malignancy and not the malignant degeneration of a benign lesion. Because of the malignant behavior of this lesion, early aggressive extirpative therapy is recommended.     

Buschke-Loewenstein tumour of the penis

Three cases of Buschke-Loewenstein tumour are reported. The clinical features of the process are described, its therapeutic aspects are outlined, the diagnostic problems involved by its microscopic structure are discussed. The features of the first case were typical of the process. The intermediate form between the Buschke-Loewenstein tumour and squamous cell carcinoma was exemplified by the second case. The small size of the tumour in the third case was compatible with an organ-saving surgical intervention.     

A case of retrovesical tumor

A 53-year-old man was admitted with complaint of left lower abdominal pain. Retrovesical tumor was suggested after digital examination and imaging diagnosis. At operation, the encapsulated tumor occupied the retrovesical space, but was not adhered to the adjacent organs such as prostate, seminal vesicles, bladder and rectum. The entire tumor was successfully resected. Histopathological report revealed a mature teratoma. He is alive without recurrence at 1 year after operation. This is the second case of retrovesical teratoma in the Japanese literature.     

直肠神经内分泌肿瘤1例

<正>1病例资料患者女,53岁,因"大便带血反复发作半年余,加重1 d"入院。入院症见:大便带血,呈暗红色,点滴状,便时肛内肿物脱出,需用手辅助还纳,大便日1～2次,质软成形,伴排便不尽感,偶有上腹疼痛,无腹胀,纳眠可,小便调。专科检查:骑伏位,肛门前位皮肤增殖隆起。直肠指诊:痔区黏膜隆起,距肛缘6～7 cm处触及直肠后壁息肉样隆起,大小     

A case of Sertoli cell tumor

We report a case of Sertoli cell tumor. A 33-year-old man visited our clinic with a complaint of painless left scrotal swelling on September 29th, 2003. An elastic firm induration larger than a hen's egg in size was palpable on the surface of the left testis. Tumor markers for testicular tumor such as human chorionic gonadotropin-beta, alpha fetoprotein, and lactate dehydrogenase were not elevated. However, ultrasound showed a low echoic mass in the left testis. Therefore, we performed left high orchiectomy under the diagnosis of left testicular tumor. Its histology showed Sertoli cell tumor. Neither recurrence nor metastasis has been detected for about 8 months after the operation.     

A case of bilateral testicular tumor

A case of bilateral germ cell tumor of the testis is reported. In 1988, a 36-year-old male presented with painless swelling of left scrotal contents. Right orchiectomy and retroperitoneal lymph node dissection for embryonal carcinoma had been performed 5 years earlier. Left orchiectomy was performed and its histological finding was seminoma and embryonal carcinoma. Evaluations including CT scan and Ga scintigraphy revealed no metastasis. Postoperatively, the patient was treated with PVB therapy. Previous reports of bilateral germ cell testicular tumor were reviewed, and the age distribution, interval, and histological classification of these cases are discussed.     

A case of metastatic ureteral tumor

We report a case of metastatic ureteral tumor resulting from gastric cancer in a 56-year-old female. She had undergone distal gastrectomy for gastric cancer in our hospital 3 years earlier, on the histological diagnosis of poorly differentiated adenocarcinoma with absolute curative resection. In March, 1987, she visited our hospital complaining of microscopic hematuria and lumbago. Intravenous pyelography and left retrograde pyelography revealed the stenotic change of the left ureter and hydronephrosis. Endoscopic ureteral biopsy was performed, and the histological diagnosis was an inflammatory change of the ureter. But the hydronephrosis increased, so partial ureterectomy was performed. The histological examination confirmed adenocarcinoma in the left ureter resulting from gastric cancer. From the 340th postoperative day, she complained of general fatigue and vomiting, and gastroscopy revealed recurrent gastric cancer.     

A case of infantile Sertoli cell tumor

A case of infantile Sertoli cell tumor of the testis is presented. A 2-year-old child visited our hospital with the complaint of painless swelling of the left scrotal content. A solid tumor was demonstrated in the left testis by scrotal echography. Physical and laboratory examinations were within normal limits and alpha-fetoprotein and beta-HCG were not elevated. The left testis was removed. The tumor sized 3.0 x 3.0 x 2.2 cm and weighted 14.5 g. Pathohistological diagnosis was benign Sertoli cell tumor. Tumor cells were vimentin positive and TM-1 reactive antigen positive and revealed electronmicroscopically some features of Sertoli cells such as intermediated microfilament, rich lysosomes and interdigitation between adjacent cells. The patient was well with no evidence of diseases one and a half years after the operation.