Primary testicular carcinoid tumor: a case report

This report describes a primary testicular carcinoid. A 41-year-old male was hospitalized with an asymptomatic right testicular mass. A high inguinal orchiectomy was done after the diagnosis of the testicular tumor. Pathologically, the tumor showed the typical appearance of a carcinoid tumor. A computed tomographic scan and other studies could not demonstrate any metastasis elsewhere. He has remained well and without any evidence of recurrence.     

Primary carcinoid tumor of the testis: a case report

A case of pure, primary testicular carcinoid tumor in a 27-seven-year-old male is reported. The patient presented with a painless enlargement of the right testis but the serum markers for testicular cancer, including alpha-fetoprotein, beta-human chorionic gonadotropin and lactate dehydrogenase, were not elevated. Right orchiectomy was performed. Histologically, the tumor showed a typical appearance of carcinoid tumor. Further examinations such as barium studies, computed tomographic scan and Ga scintigraphy, showed no other lesions, and he received an adjuvant chemotherapy of cyclophosphamide, 5-fluorouracil and adriamycin. He is well and free from symptoms 17 months after surgery.     

Primary carcinoid tumor of the kidney: a case report

A 40-year-old male was referred to our hospital for further examination of a left kidney tumor. A left kidney tumor measuring 3 cm in diameter was incidentally found by abdominal ultrasound on physical checkup. Abdominal computed tomography and magnetic resonance imaging confirmed hypovascular tumor of the left kidney. Clinical diagnosis was left renal cell carcinoma and retroperitoneoscopic left nephrectomy was performed. However, pathological diagnosis was carcinoid tumor of the kidney. Primary carcinoid tumors of the kidney are uncommon. We present a case of primary carcioid tumor of the kidney and review the literature.     

Primary testicular carcinoid tumor with teratoma: a case report

We report a case of primary testicular carcinoid with teratoma and review the literature. A 68-year-old man was hospitalized with an asymptomatic left testicular mass. Left radical orchiectomy was performed under a diagnosis of testicular tumor. Histologically, the tumor showed a typical appearance of teratoma with carcinoid components. Barium studies, computed tomographic scan could not demonstrate any other tumor anywhere else. He is now being followed at our clinic without any evidence of recurrence.     

Primary carcinoid tumor in a retroperitoneal mature teratoma: report of a case

Primary retroperitoneal teratoma in an adult is rare, as is the occurrence of a malignant tumor within a mature teratoma, known as “malignant transformation”. A 24-year-old woman was admitted to our hospital for investigation of an abdominal mass. Computed tomography and magnetic resonance imaging revealed a multilocular mass in the right upper abdomen. The tumor consisted of fat, soft tissue, and bone, with a slightly enhanced solid component. The tumor was diagnosed preoperatively as a retroperitoneal mature teratoma with an immature component, and excised. Histologically, it was composed mainly of mature fat, soft tissue, and bone, accompanied by a solid component of prostate-like tissue. In addition, a latent carcinoid tumor was recognized in the middle of the tumor. The tumor was finally diagnosed as a primary carcinoid tumor within the retroperitoneal mature teratoma. The patient has been followed-up for 24 months since her operation without any evidence of recurrence. We report this case to highlight the possibility of malignant transformation in adult retroperitoneal teratoma, even when the preoperative diagnosis is benign mature teratoma.     

Renal carcinoid tumor: a case report

A right renal tumor was incidentally found in a 38-year-old woman by annual medical check up. She visited our hospital for further examination and treatment. She did not show typical symptoms of carcinoid. A computed tomography (CT) revealed a calcified solid tumor in the upper portion of the right kidney. The tumor was 6.0 cm in diameter and was not enhanced in either early or late phase. There was no evidence of extrarenal invasion or distant metastasis. Based on a clinical diagnosis of stage 1 renal cell carcinoma, laparoscopic nephrectomy was performed. The pathological diagnosis was renal carcinoid tumor. The tumor had trabecular and ribbon-like structures with a thin fibrovascular stroma. Immunohistochemicaliy, the tumor cells stained positive for chromogranin A, synaptophisin and CD56. The cell proliferation rate was estimated to be under 1% with Ki67 staining. To find the primary lesion, we performed upper and lower gastric endoscopy and chest computed tomography, but could not find any/other carcinoid tumors. At 1-year follow up, she had no evidence of local recurrence or metastasis.     

Primary carcinoid of the testis: a case report

A 66-year-old male was hospitalized with right femur fracture and injury of the popliteal artery sustained in a traffic accident. The patient underwent external fixation and repair of popliteal artery. At operation, the orthopedists noticed a mass in the scrotum and requested our consultation. A right orchiectomy was done under the diagnosis of a testicular tumor. The tumor measured 9 x 6 x 5 cm in size. Histological diagnosis was pure carcinoid of the testis. Computerized tomography and other studies showed no tumorous lesions elsewhere. Symptoms of a carcinoid syndrome were not noted. No evidence of metastasis has been seen for 12 months after surgery.     

Case report: Primary carcinoid tumor of the testicle without metastases in combination with testicular atrophy and testosterone deficiency

The first case of testicular carcinoid was represented as an element of a benign cystic teratoma by Simon et al. J Urol 1954; 72: 892–894. It is a rare disease accounting for less than 1% of all testicular neoplasms. We report a case of carcinoid of the testis without carcinoid syndrome and metastasis but with testosterone deficiency based on a bilateral testicular atrophy, which has not been previously reported.     

Sporadic gastric carcinoid tumor laparoscopically resected: a case report.

Sporadic gastric carcinoid tumors are relatively infrequent malignancies of the stomach. Tumors measuring less than 1 cm can sometimes be safely removed endoscopically; however, larger neoplasias require surgical ablation. The present case report represents a gastric carcinoid tumor laparoscopically resected in a patient with a history of hematemesis. The tumor was first marked endoscopically with India ink, which facilitated subsequent localization of the area to be resected. Laparoscopic resection of the mass was without complication, and the pathology study confirmed the preoperative diagnosis and negativity of the margins. In patients who present with masses that are not amended for endoscopic resection, sporadic gastric carcinoid tumors can be resected laparoscopically.     

肾类癌1例报道并文献复习

目的探讨肾类癌的临床病理特征。方法对1例肾类癌的临床资料进行分析并结合文献复习。结果 59岁女性患者体检时偶然发现无症状左肾肿物,患者无类癌综合征。CT示左肾下极肿物,直径约3.8 cm,边界清楚,强化不明显。患者行经腹膜后途径根治性左肾切除术。免疫组织化学染色显示突触素,CD56,神经元特异性烯醇酶,波形蛋白,CK18呈阳性。病理诊断：左肾类癌T1a期。术后未行辅助治疗,随诊17个月未见肿瘤复发或转移。结论肾类癌极其罕见,确诊依赖病理学及免疫组织化学检查。局限性肾类癌的治疗首选完整的外科切除,其预后相对较好。     

Retro-umbilical ectopic testicle: report of a case.

A case of a retro-umbilical ectopic testicle in a 13-year-old cryptorchid boy is reported. To our knowledge this has not been reported previously. There is no definite explanation for this highly aberrant ectopia. During the neonatal period the boy had an umbilical suppuration that required drainage. This may offer a possible explanation since the consequent healing process could have pulled the peritoneum upwards, dragging the testicle with it. Despite the high position of this testicle (and previous operation on the other side) it was easy to cross over both testes successfully to the heterolateral scrotum.     

Rare localization of a carcinoid tumor: the pancreas. A case report]

Pancreatic carcinoid tumors are very rare. A case of obstructive jaundice caused by a large mass of the head of the pancreas is described. The histological examination of the surgical specimen revealed a pancreatic carcinoid tumor. A brief, discussion of the main characteristics of this kind of tumor is performed by the Authors.     

Primary endodermal sinus tumor of the penis: a case report.

We report a case of primary extragonadal germ cell tumor of the penis in a 2-year-old child with elevated serum alpha-fetoprotein. The patient responded well to a combination of bleomycin, etoposide and cisplatin, achieving a complete response within 3 cycles. He was alive and disease-free 8 months after diagnosis. To our knowledge this is the first case of an endodermal sinus tumor of the penis reported in the literature. The possible histogenesis of this tumor at such a rare site is discussed.     

Primary carcinoid tumor of the urethra.

The first reported case of a carcinoid tumor of the urinary tract is presented. Because of rapid local recurrence and distant spread early radical surgery is recommended. Several methods of palliation of the carcinoid syndrome-surgical, pharmacologic and chemotherapeutic-are discussed.     

Torsion of the undescended testicle: a case report

A 15-year-old boy was consulted to our hospital with the complaint of swelling of the left inguinal region with tenderness. Under the diagnosis of torsion of the undescended testicle, left orchidopexy was done with the finding of left testicle which had 360 degree counterclockwise intravaginal rotation. This was thought to be the 54th case of the disease in Japan. We have made some discussion on incidence, complication, diagnosis and therapy.