The aim of this study was to evaluate the effects of low concentrations of DEHP and MEHP on steroidogenesis in a murine Leydig tumor cell line （MLTC-1） in vitro. The result of flow cytometry analysis revealed that t...The aim of this study was to evaluate the effects of low concentrations of DEHP and MEHP on steroidogenesis in a murine Leydig tumor cell line （MLTC-1） in vitro. The result of flow cytometry analysis revealed that the proportion of apoptotic cells was significantly increased after the exposure to DEHP. All three genes （P450scc, P450c17, and 38HSD） under study showed an increased expression following exposure to DEHP or MEHP, although some insignificant inhibitory effects appeared in the 10μmol/L treatment group as compared with the controls. It was also found that DEHP or MEHP stimulated INSL3 mRNA and protein especially in the 0.001 μmol/L treatment group. Testosterone secretions were stimulated after the exposure to DEHP or MEHP. Alterations of steroidogenic enzymes and INSL3 in MLTC-1 cells might be involved in the biphasic effects of DEHP/MEHP on androgen production.展开更多
Based on such diagnostic measures as clinical diagnosis and lab etiological examination,the disease was diagnosed as Leydig cell tumor in dogs. Combined with the clinical examination results of the dog,testicular tumo...Based on such diagnostic measures as clinical diagnosis and lab etiological examination,the disease was diagnosed as Leydig cell tumor in dogs. Combined with the clinical examination results of the dog,testicular tumor removal operation was conducted,and the prognosis was favorable.展开更多
Ovarian Leydig cell tumor, a sub-type of ovarian steroid cell tumor, accounts for less than 0.1% of all ovarian tumors. It can affect women of any age group but is most common in postmenopausal women. We here report a...Ovarian Leydig cell tumor, a sub-type of ovarian steroid cell tumor, accounts for less than 0.1% of all ovarian tumors. It can affect women of any age group but is most common in postmenopausal women. We here report a case of virilizing ovarian Leydig cell tumor with multiple non-functional endocrine neoplasias (pituitary and adrenal adenomas) in a 48-year-old woman. She first presented with sub-abdominal pain and hirsutism since menopause three years ago. Subsequently, she had slight facial acne, voice deepening, breast atrophy, and a prominent Adam’s apple. Her hormone profile showed an elevated level of testosterone, high free androgen index, low levels of luteinizing hormone and follicle stimulating hormone, and normal levels of random cortisol, androstenedione, 17-hydroxyprogesterone and dehydroepiandrosterone sulfate. A pelvic enhanced magnetic resonance imaging (MRI) scan showed nodules in the right ovary, and a pituitary enhanced MRI revealed a microadenoma. An enhanced computerized tomography scan of the adrenal gland revealed left adrenal nodules, possibly adenomas. After a right cystectomy and right fallopian tube resection, her testosterone level declined to 0.38 nmol/L and the symptoms associated with hyperandrogenism improved. This is a rare case of virilizing ovarian Leydig cell tumor with multiple non-functional endocrine neoplasias. We believe our findings will be helpful in the clinical diagnosis and treatment of hyperandrogenism.展开更多
Sertoli-Leydig cell tumors (SLCTs) are rare tumors. Mass and pain are the presenting feature. The varying histopathology and differentiation of this tumor present difficulties with proper diagnosis and development of ...Sertoli-Leydig cell tumors (SLCTs) are rare tumors. Mass and pain are the presenting feature. The varying histopathology and differentiation of this tumor present difficulties with proper diagnosis and development of optimal treatment regimens. The prognosis depends on tumors grading and staging. Surgery is main stay management option. Chemotherapy and radiation options are still of choice.?We aimed?to?present Sertoli-Leydig cell tumor managed surgical at Latifa Hospital in Dubai, UAE with acceptable outcome and good patient satisfaction.展开更多
Sertoli-Leydig cell tumor of the ovary is a kind of sex cord-stromal tumor, which occurs between teens and twenties with symptoms including abdominal pain and swelling. The incidence rate is infinitely rare comprising...Sertoli-Leydig cell tumor of the ovary is a kind of sex cord-stromal tumor, which occurs between teens and twenties with symptoms including abdominal pain and swelling. The incidence rate is infinitely rare comprising less than 0.5% of all ovarian tumor. The average age of “retiform Sertoli-Leydig cell tumor” is 17 years as compared to 25 years for Sertoli-Leydig cell tumors as a group. We have experienced this rare case of retiform Sertoli-Leydig cell tumor in a 25-year-old foreign patient with the complaint of palpable mass on the right lower quadrant and an irregular menstrual period. The patient underwent right salpingo-oophorectomy and tumor stage was FIGO stage 1A. We report with a brief review of literature.展开更多
Esophageal granular cell tumors(GCTs) are rare tumors of the esophagus.We evaluated the clinical and pathologic features of 9 esophageal GCT patients(5 men and 4 women) from our institute and reviewed the related dise...Esophageal granular cell tumors(GCTs) are rare tumors of the esophagus.We evaluated the clinical and pathologic features of 9 esophageal GCT patients(5 men and 4 women) from our institute and reviewed the related disease literature.Patient age ranged from 25 to 53 years(mean:41 years).All the patients were asymptomatic or presented with non-specific symptoms.Most GCTs occurred in the distal esophagus and were less than 6 mm in diameter.Computational analysis showed that the average gray-scale endoscopic ultrasound images of esophageal GCTs were greater than that of esophageal leiomyomas.Eight patients were treated by endoscopic resection,and 1 patient underwent surgical excision.No post-therapy recurrence or metastasis developed during follow-up(mean:36.4 mo,range:1-72 mo).展开更多
Studies reported that there is a close relationship between hepatocellular carcinoma (HCC) and testis carcinoma. Both tumors can be presented as synchronal tumors, or as testicular metastases of HCC or as hepatic meta...Studies reported that there is a close relationship between hepatocellular carcinoma (HCC) and testis carcinoma. Both tumors can be presented as synchronal tumors, or as testicular metastases of HCC or as hepatic metastases of testicular tumor[7]. HCC is one of the most common malignancies worldwide and the incidence of HCC increases with age[8]. The relationship between hepatitis B incidence and HCC rates is also well recognized. Alpha fetoprotein (AFP) is produced by 70% of HCC. Though a level of AFP ＞400 ng/mL is diagnostic for HCC, in the presence of active hepatitis B infection, the cut-off level should be considered to be at least 1000-4 000 ng/mL. Like HCC, germ cell tumors of the testis also release AFP; but it is shown that some of Sertoli cell tumors of testis can also release AFP[10].Herein we have reported about the first case of HCC in the literature which is presented concomitantly with Sertoli-Leydig tumor of testis, leading to extremely high level of AFP in a 21-year-old man.展开更多
基金supported by the National Natural Science Foundation of China(No.81273028)
文摘The aim of this study was to evaluate the effects of low concentrations of DEHP and MEHP on steroidogenesis in a murine Leydig tumor cell line （MLTC-1） in vitro. The result of flow cytometry analysis revealed that the proportion of apoptotic cells was significantly increased after the exposure to DEHP. All three genes （P450scc, P450c17, and 38HSD） under study showed an increased expression following exposure to DEHP or MEHP, although some insignificant inhibitory effects appeared in the 10μmol/L treatment group as compared with the controls. It was also found that DEHP or MEHP stimulated INSL3 mRNA and protein especially in the 0.001 μmol/L treatment group. Testosterone secretions were stimulated after the exposure to DEHP or MEHP. Alterations of steroidogenic enzymes and INSL3 in MLTC-1 cells might be involved in the biphasic effects of DEHP/MEHP on androgen production.
文摘Based on such diagnostic measures as clinical diagnosis and lab etiological examination,the disease was diagnosed as Leydig cell tumor in dogs. Combined with the clinical examination results of the dog,testicular tumor removal operation was conducted,and the prognosis was favorable.
文摘Ovarian Leydig cell tumor, a sub-type of ovarian steroid cell tumor, accounts for less than 0.1% of all ovarian tumors. It can affect women of any age group but is most common in postmenopausal women. We here report a case of virilizing ovarian Leydig cell tumor with multiple non-functional endocrine neoplasias (pituitary and adrenal adenomas) in a 48-year-old woman. She first presented with sub-abdominal pain and hirsutism since menopause three years ago. Subsequently, she had slight facial acne, voice deepening, breast atrophy, and a prominent Adam’s apple. Her hormone profile showed an elevated level of testosterone, high free androgen index, low levels of luteinizing hormone and follicle stimulating hormone, and normal levels of random cortisol, androstenedione, 17-hydroxyprogesterone and dehydroepiandrosterone sulfate. A pelvic enhanced magnetic resonance imaging (MRI) scan showed nodules in the right ovary, and a pituitary enhanced MRI revealed a microadenoma. An enhanced computerized tomography scan of the adrenal gland revealed left adrenal nodules, possibly adenomas. After a right cystectomy and right fallopian tube resection, her testosterone level declined to 0.38 nmol/L and the symptoms associated with hyperandrogenism improved. This is a rare case of virilizing ovarian Leydig cell tumor with multiple non-functional endocrine neoplasias. We believe our findings will be helpful in the clinical diagnosis and treatment of hyperandrogenism.
文摘Sertoli-Leydig cell tumors (SLCTs) are rare tumors. Mass and pain are the presenting feature. The varying histopathology and differentiation of this tumor present difficulties with proper diagnosis and development of optimal treatment regimens. The prognosis depends on tumors grading and staging. Surgery is main stay management option. Chemotherapy and radiation options are still of choice.?We aimed?to?present Sertoli-Leydig cell tumor managed surgical at Latifa Hospital in Dubai, UAE with acceptable outcome and good patient satisfaction.
文摘Sertoli-Leydig cell tumor of the ovary is a kind of sex cord-stromal tumor, which occurs between teens and twenties with symptoms including abdominal pain and swelling. The incidence rate is infinitely rare comprising less than 0.5% of all ovarian tumor. The average age of “retiform Sertoli-Leydig cell tumor” is 17 years as compared to 25 years for Sertoli-Leydig cell tumors as a group. We have experienced this rare case of retiform Sertoli-Leydig cell tumor in a 25-year-old foreign patient with the complaint of palpable mass on the right lower quadrant and an irregular menstrual period. The patient underwent right salpingo-oophorectomy and tumor stage was FIGO stage 1A. We report with a brief review of literature.
文摘Esophageal granular cell tumors(GCTs) are rare tumors of the esophagus.We evaluated the clinical and pathologic features of 9 esophageal GCT patients(5 men and 4 women) from our institute and reviewed the related disease literature.Patient age ranged from 25 to 53 years(mean:41 years).All the patients were asymptomatic or presented with non-specific symptoms.Most GCTs occurred in the distal esophagus and were less than 6 mm in diameter.Computational analysis showed that the average gray-scale endoscopic ultrasound images of esophageal GCTs were greater than that of esophageal leiomyomas.Eight patients were treated by endoscopic resection,and 1 patient underwent surgical excision.No post-therapy recurrence or metastasis developed during follow-up(mean:36.4 mo,range:1-72 mo).
文摘Studies reported that there is a close relationship between hepatocellular carcinoma (HCC) and testis carcinoma. Both tumors can be presented as synchronal tumors, or as testicular metastases of HCC or as hepatic metastases of testicular tumor[7]. HCC is one of the most common malignancies worldwide and the incidence of HCC increases with age[8]. The relationship between hepatitis B incidence and HCC rates is also well recognized. Alpha fetoprotein (AFP) is produced by 70% of HCC. Though a level of AFP ＞400 ng/mL is diagnostic for HCC, in the presence of active hepatitis B infection, the cut-off level should be considered to be at least 1000-4 000 ng/mL. Like HCC, germ cell tumors of the testis also release AFP; but it is shown that some of Sertoli cell tumors of testis can also release AFP[10].Herein we have reported about the first case of HCC in the literature which is presented concomitantly with Sertoli-Leydig tumor of testis, leading to extremely high level of AFP in a 21-year-old man.
