The role of micro-RNAs in management of germ cell tumors: future directions

Gastric adenocarcinoma with germ cell tumor components: a rare case report

Germ cell tumors (GCTs) often occur in male testes and female ovaries. Extragonadal GCTs account for approximately 2% to 5% of all GCTs and mainly occur in the mediastinum, retroperitoneum, and pineal gland. In this study, we reported a rare case of gastric adenocarcinoma with GCT components. The patient’s serum α-fetoprotein (AFP) level was higher than normal. Abdominal computed tomography (CT) showed a 10-cm × 10-cm tumor between the spleen and the bottom of the stomach. Gastric endoscopy indicated an ulcerative lesion extending from the bottom of the stomach to the antrum. Tissue biopsy identified the tumor as an adenocarcinoma. The patient underwent abdominal tumor resection, subtotal gastrectomy, D2 lymphadenectomy, and splenectomy. Postoperative histopathology showed that the tumor was a moderately to poorly differentiated adenocarcinoma. Immunohistochemistry analysis revealed positive staining for AFP, glypican-3, and placental alkaline phosphatase. Gastric adenocarcinoma with GCT components is particularly uncommon and rarely reported. Elevated serum AFP and/or β-human chorionic gonadotropin levels, abdominal CT, histopathology, and immunohistochemistry may help diagnose GCTs. Radical surgery resection is the primary treatment method for GCTs. Adjuvant chemotherapy and radiotherapy are effective for advanced GCTs.

[Testicular and penile cancer-survival and quality of life : New guideline and network for second opinions]

Testicular cancer occupies a special position in several respects. Although it belongs to the group of rare tumors, which is why extensive experience in treating this tumor can not be guaranteed, interdisciplinary experts collaboration and the consequent implementation of clinical studies have resulted in standardized treatment recommendations. Because testicular cancer is one of the most curable cancers, long-term toxicity and treatment sequelae are of special importance. In the early stages, toxicity could be reduced by minimizing therapy to the extent possible, but without decreasing treatment success. Nevertheless, treatment is still controversially discussed, especially concerning treatment of stage I disease. Finally particular focus should be paid to non-germinal tumors which are even more rare, but partly also more dangerous. Therefore known facts should be made available for the broad medical community. In penile cancer, which is also a very rare tumor entity, organ-sparing surgery and consequent invasive lymph node staging are mandatory.