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Yolk sac tumor

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https://www.readbyqxmd.com/read/28202048/chemotherapy-for-primary-mediastinal-yolk-sac-tumor-in-a-patient-undergoing-chronic-hemodialysis-a-case-report
#1
Haruki Hirakawa, Chiho Nakashima, Tomomi Nakamura, Masanori Masuda, Taro Funakoshi, Shunsaku Nakagawa, Takahiro Horimatsu, Kazuo Matsubara, Manabu Muto, Shinya Kimura, Naoko Sueoka-Aragane
BACKGROUND: The safety and efficacy of chemotherapy for patients undergoing concomitant hemodialysis have not been fully established and optimal doses of anti-cancer drugs and best timing of hemodialysis remains unclear. Although chemosensitive cancers, such as germ cell tumors, treated with chemotherapy should have sufficient dose intensity maintained to achieve the desired effect, many patients with cancer undergoing hemodialysis might be under-treated because the pharmacokinetics of anti-cancer drugs in such patients remains unknown...
February 16, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28166073/ovarian-tumors-pattern-of-histomorphological-types-a-10-years-study-in-a-tertiary-referral-center-and-review-of-literature
#2
A Ghosh, D Ghartimagar, S Thapa, B Sathian, R Narasimhan, O P Talwar
Background Ovarian cancer accounts for 6% of all cancers in females. Among cancers of female genital tract, the incidence of ovarian cancers ranks below only carcinoma of the cervix and the endometrium. Objective To find the frequency of different types of histomorphological types and their association with age, side and size distribution. Method This study is a hospital based retrospective study carried out in the Department of Pathology, Manipal Teaching Hospital over a time period from Jan. 2006 to Sep. 2015...
April 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/28124545/robot-assisted-laparoscopic-retroperitoneal-lymph-node-dissection-in-testicular-tumor
#3
Fabio C M Torricelli, Denis Jardim, Giuliano B Guglielmetti, Vipul Patel, Rafael F Coelho
INTRODUCTION AND OBJECTIVE: Retroperitoneal lymph node dissection (RPLND) is indicated for patients with non-seminomatous germ cell tumor (NSGCT) with residual disease after chemotherapy. Although the gold standard approach is still the open surgery, few cases of robot-assisted laparoscopic RPLND have been described. Herein, we aim to present the surgical technique for robot-assisted laparoscopic RPLND. PATIENT AND METHOD: A 30 year-old asymptomatic man presented with left testicular swelling for 2 months...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28123734/diagnostic-and-therapeutic-challenges-in-extragonadal-yolk-sac-tumor-with-hepatoid-differentiation-a-case-report
#4
Vanja Zeremski, Christian Mawrin, Thomas Fischer, Enrico Schalk
Yolk sac tumors (YSTs) are rare aggressive tumors, arising most commonly in the gonads and occurring mainly in young adults. We herein report a case of an extragonadal YST with hepatoid differentiation localized in the brain and lung. A 41-year old man presented to our hospital with a generalized seizure. A head computed tomography and magnetic resonance imaging examination revealed a large mass in the left occipital lobe with associated edema. Following complete resection, the histopathological examination revealed that the mass was a highly malignant epithelial tumor with a hepatoid pattern...
January 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28102527/teratoma-of-the-sellar-region-a-case-report
#5
Wolfgang Saeger, Azadeh Ebrahimi, Rudi Beschorner, Hildegard Spital, Jürgen Honegger, Waldemar Wilczak
The case report describes a teratoma of the sellar region with a gland forming and an immature, relatively clear undifferentiated component without signs of anaplasia. Both components express TTF-1 indicating their presumable origin in the neurohypophysis as part of the circumventricular organs. The differential diagnosis includes pituitary adenoma and spindle cell oncocytoma with inclusion of Rathke's cleft cyst, pituitary blastoma, yolk sac tumor, and other germ cell tumors. The prognosis is the same as in the immature teratomas in the gonads, specifically unclear...
January 19, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28070053/-a-case-report-for-primary-yolk-sac-tumor-of-endometrium
#6
Yuan Hu, Fei Zeng, Min Xue, Songshu Xiao
A case of primary yolk sac tumor of endometrium was retrospectively analyzed and relevant literature was systematically reviewed. We found that the primary yolk sac tumor of endometrium showed low incidence rate and was clinically characterized by abnormal vaginal bleeding, intrauterine lesions and significantly elevated alpha-fetoprotein (AFP) level. The final diagnosis should be confirmed by pathological examination. There is no guideline for the treatment of primary yolk sac tumor of endometrium due to its rareness...
December 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28058004/testicular-cancer-in-down-syndrome-with-spinal-cord-metastases
#7
Turky Almouhissen, Hattan Badr, Bassam AlMatrafi, Noor Alessa, Anmar Nassir
A 22-year-old male patient with Down syndrome was referred to our hospital with a vast left testicular mass. He underwent a left radical inguinal orchiectomy, and a histopathological examination of the mass showed a yolk sac tumor invading the epididymis. The patient was discharged in a satisfactory condition. Sixteen days later, the patient presented again complaining of lower limb weakness. Magnetic resonance imaging of the spine showed metastatic lesions compressing the dorsal spine, and he underwent emergency surgical decompression...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28039901/living-donor-liver-transplantation-in-a-pediatric-patient-with-preexisting-yolk-sac-tumor
#8
Taiichi Wakiya, Yoshikazu Toyoki, Keinosuke Ishido, Daisuke Kudo, Norihisa Kimura, Shinji Tsutsumi, Tadashi Odagiri, Akiko Suto, Chiaki Uchida, Kenichi Hakamada
There is ongoing discussion regarding the indications and timing of LT for patients with a preexisting extrahepatic malignancy. We herein report a pediatric case that underwent LDLT after therapy for YST. The patient, a 13-year-old female with biliary atresia, had undergone portoenterostomy at 2 months of age. She developed a left ovarian tumor with a high serum alpha-fetoprotein concentration at 10 years of age. She underwent left oophorectomy and was diagnosed with ovarian YST (Stage I). After surgery, hepatopulmonary syndrome progressed gradually...
December 30, 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/28013088/risk-of-malignant-childhood-germ-cell-tumors-in-relation-to-demographic-gestational-and-perinatal-characteristics
#9
Clinton Hall, Beate Ritz, Myles Cockburn, Tom B Davidson, Julia E Heck
BACKGROUND: Childhood germ cell tumors (GCTs) are a rare assortment of neoplasms, with mostly unknown etiology, that are believed to originate very early in life. Few studies have examined risk factors by histologic subtype, despite evidence of different risk profiles. MATERIALS AND METHODS: In this population-based case-control study, 451 childhood malignant GCT cases ages 0-5 years were identified from the California Cancer Registry. Differentiating between common histologic subtypes, we identified 181 yolk sac tumors, 216 teratomas, and 54 rarer subtypes...
February 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28003760/comparison-of-the-clinical-features-and-hematopoietic-stem-cell-transplantation-outcomes-of-mediastinal-malignant-germ-cell-tumors-with-nonmediastinal-extragonadal-placements
#10
Nesrin Ocal, Birol Yildiz, Nuri Karadurmus, Deniz Dogan, Sukru Ozaydin, Ramazan Ocal, Mustafa Ozturk, Fikret Arpaci, Hayati Bilgic
OBJECTIVE: Even though the primary mediastinal extragonadal germ cell tumors (EGCTs) are rare, they are noteworthy in the differential diagnosis of mediastinal masses. In this study, we aimed to identify the clinical features of mediastinal malignant GCTs and compare the results of hematopoietic stem cell transplantation between mediastinal and nonmediastinal malignant EGCTs. METHOD: Data of the patients with EGCT who were treated and underwent hematopoietic stem cell transplantation at our hospital between 1988 and 2015 were retrieved retrospectively...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28000905/teratomas-produced-from-human-pluripotent-stem-cells-xenografted-into-immunodeficient-mice-a-histopathology-atlas
#11
Ivan Damjanov, Peter W Andrews
This atlas illustrates the microscopic features of tumors produced from human pluripotent stem cells (hPSCs) xenografted into immunosuppressed mice, according to the generally accepted protocols for performing this teratoma assay of stem cell pluripotency. Microphotographs depict various hematoxylin and eosin (H&E) stained tissues derived from all three embryonic germ layers (ectoderm, mesoderm and endoderm). The appearance of persistent hPSC in teratomas is also described with special emphasis on the morphogenesis of embryoid bodies and yolk sac components surrounding them...
2016: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/27995468/alpha-fetoprotein-producing-esophageal-adenocarcinoma-a-mimicker-of-hepatocellular-carcinoma
#12
REVIEW
Jeremy Wang, Wendy Liu, Keyur Parikh, Anthony Benjamin Post
Alpha-fetoprotein (AFP)-producing esophageal adenocarcinoma (EAC) is a rare occurrence. Elevation of serum AFP is commonly associated with hepatocellular carcinoma and yolk sac tumors, but rarely with esophageal carcinoma. Here, we report a rare case of AFP-producing EAC. A 51-year-old man presented with two weeks of acid reflux and a 35-lb weight loss. Laboratory data were notable for transaminitis and AFP was 2524 ng/mL. Computed tomography of the abdomen revealed abnormal thickening of the esophagus and multiple metastatic masses throughout the liver...
February 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/27959583/unusual-presentations-of-gynecologic-tumors-extragonadal-yolk-sac-tumor-of-the-vulva
#13
Elizabeth D Euscher
Extragonadal germ cell tumors are uncommon, and although they morphologically resemble their gonadal counterparts, unexpected gonadal presentation increases the potential for erroneous diagnoses. Yolk sac tumor is a malignant germ cell tumor characterized by an extraembryonic yolk sac line of differentiation, and relative to other germ cell tumors, is characterized by varied and diverse histologic patterns. When occurring outside of typical age parameters or in extragonadal locations, the histologic variability of yolk sac tumor and its tendency to mimic somatic tumors pose diagnostic challenges...
February 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/27957372/nephroblastoma-arising-from-primary-testicular-germ-cell-tumor-a-case-report-and-literature-review
#14
Houda Alatassi, Brittany E O'Bryan, Jamie C Messer, Zhenglong Wang
Adult extrarenal nephroblastoma is a very rare tumor. Nephroblastoma arising from primary testicular germ cell tumor is exceedingly rare. To our knowledge, only three cases have been reported in the English literature. We report a case of a 19-year-old man who presented with a large right testicle. Image studies showed a large retroperitoneal mass along with liver and lung metastases. Orchiectomy demonstrated a mixed germ cell tumor composed of yolk sac tumor, embryonal carcinoma, and mature and immature teratoma with a significant portion of nephroblastoma...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27911225/successful-treatment-of-mixed-yolk-sac-tumor-and-mature-teratoma-in-the-spinal-cord-case-report
#15
Akitake Mukasa, Shunsuke Yanagisawa, Kuniaki Saito, Shota Tanaka, Keisuke Takai, Junji Shibahara, Masachika Ikegami, Yusuke Nakao, Katsushi Takeshita, Masao Matsutani, Nobuhito Saito
Primary spinal germ cell tumors are rare, and spinal nongerminomatous germ cell tumors represent an even rarer subset for which no standard therapy has been established. The authors report the case of a 24-year-old woman with multifocal primary spinal germ cell tumors scattered from T-12 to L-5 that consisted of yolk sac tumor and mature teratoma. After diagnostic partial resection, the patient was treated with 30 Gy of craniospinal irradiation and 30 Gy of local spinal irradiation, followed by 8 courses of chemotherapy based on ifosfamide, cisplatin, and etoposide (ICE)...
December 2, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27879325/cushing-syndrome-in-a-child-due-to-pro-opiomelanocortin-pomc-secretion-from-a-yolk-sac-tumor
#16
Evelien F Gevers, Suzanne Meredith, Pratik Shah, John Torpiano, Catherine Peters, Neil J Sebire, Olga Slater, Anne White, Mehul T Dattani
CONTEXT: Pituitary microadenomas and adrenal tumours are the most common causes for endogenous Cushing syndrome (CS) in children. CASE DESCRIPTION: We describe a two-year old girl with Cushing syndrome due to ectopic pro-opiomelanocortin (POMC) production from an abdominal yolk sac tumor. Cortisol concentrations were elevated but adrenocorticotropic hormone (ACTH) concentrations were equivocal. The use of antibodies specifically detecting ACTH precursors revealed that plasma ACTH precursors were elevated...
February 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27861143/intratumoral-heterogeneity-and-chemoresistance-in-nonseminomatous-germ-cell-tumor-of-the-testis
#17
Mehmet Asim Bilen, Kenneth R Hess, Matthew T Campbell, Jennifer Wang, Russell R Broaddus, Jose A Karam, John F Ward, Christopher G Wood, Seungtaek L Choi, Priya Rao, Miao Zhang, Aung Naing, Rosale General, Diana H Cauley, Sue-Hwa Lin, Christopher J Logothetis, Louis L Pisters, Shi-Ming Tu
BACKGROUND: Nonseminomatous germ cell tumor of the testis (NSGCT) is largely curable. However, a small group of patients develop refractory disease. We investigated the hypothesis that intratumoral heterogeneity contributes to the emergence of chemoresistance and the development of refractory tumor subtypes. RESULTS: Our institution's records for January 2000 through December 2010 included 275 patients whose primary tumor showed pure embryonal carcinoma (pure E); mixed embryonal carcinoma, yolk sac tumor, and teratoma (EYT); or mixed embryonal carcinoma, yolk sac tumor, seminoma, and teratoma (EYST)...
November 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27859263/post-chemotherapy-retroperitoneal-teratoma-in-nonseminomatous-germ-cell-tumors-do-predictive-factors-exist-results-from-a-national-multicenter-study
#18
MULTICENTER STUDY
Marie Dusaud, Bernard Malavaud, Younes Bayoud, Philippe Sebe, Jean Luc Hoepffner, Laurent Salomon, Alain Houlgatte, Géraldine Pignot, Jérome Rigaud, Aude Fléchon, Christian Pfister, Morgan Rouprêt, Michel Soulié, Arnaud Méjean, Xavier Durand
BACKGROUND AND OBJECTIVES: To identify predictive preoperative factors of the presence of teratoma in retroperitoneal lymph node dissection specimens. METHODS: We performed a 20 years multicenter retrospective analysis of all patients who underwent retroperitoneal lymph node dissection for residual masses after chemotherapy (PC-RPLND). Patients had undergone PC-RPLND after chemotherapy for advanced testicular cancer. The histologic components of the primary tumor were compared with those of the residual masses using logistic regression...
December 2016: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27821913/a-case-report-of-a-metastatic-yolk-sac-carcinoma-in-the-pulmonary-artery-of-a-young-female-sprague-dawley-rat
#19
Yohei Sakamoto, Takaharu Nagaoka, Kei Tamura, Hideshi Kaneko
Yolk sac carcinoma is an extremely rare tumor in rats and is usually found in the genital system of aged animals. We encountered a yolk sac carcinoma in the pulmonary artery of an 18-week-old female Sprague-Dawley rat. In a repeated dosing toxicity study (once weekly for 4 weeks, intraperitoneal), this rat was unexpectedly found dead on the 55th day after the final administration of the test article. At necropsy, grayish white nodules were found on the lung surface. Histopathologically, tumor emboli were observed in the trunk and branch of the pulmonary artery...
October 2016: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/27818263/brief-report-a-second-primary-endodermal-sinus-tumor-9%C3%A2-years-after-initial-diagnosis
#20
Lea A Moukarzel, Kimberly Levinson, Francis C Grumbine
BACKGROUND: Ovarian yolk sac tumors (YSTs) are rare malignant germ cell tumors known to present unilaterally, allowing for fertility-sparing surgical treatment with adjuvant chemotherapy. The few published cases of bilateral ovarian involvement were at the time of original diagnosis in patients with widely metastatic disease. We present, to our knowledge, the first case of bilateral ovarian YSTs, diagnosed several years apart, and discuss the implications on recurrence and tumor marker surveillance for these tumors...
November 4, 2016: Journal of Pediatric and Adolescent Gynecology
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