• Somatic-type tumors arising from dermoid cysts are very rare, while tumors of CNS arising from mature teratoma are even rarer. (biomedcentral.com)
  • Previous studies have reported that tumors of CNS arising from mature teratoma are generally from glial cells or primitive neuroectodermal cells [ 3 ]. (biomedcentral.com)
  • Sacrococcygeal teratomas are the most common type of germ cell tumors (both benign and malignant) diagnosed in neonates, infants, and children younger than 4 years. (wikipedia.org)
  • Neonatal tumors present at birth protruding from the sacral site and are usually mature or immature teratomas. (wikipedia.org)
  • Benign germ cell tumors are referred to as benign teratomas or dermoids if they are primarily solid in consistency. (medscape.com)
  • Nonseminomatous tumors also are termed malignant teratomas and are divided further by cell type into choriocarcinomas, embryonal carcinomas, mixed tumors, teratocarcinomas, and yolk sac carcinomas. (medscape.com)
  • The vast majority of teratomas and other germ cell tumors arise in the anterior compartment of the mediastinum. (medscape.com)
  • Invasive mucinous adenocarcinoma is uncommon and usually arises in the background of benign or borderline tumors. (hindawi.com)
  • Nonepithelial malignant neoplasms sometimes arise in mucinous tumors, typically as mural nodules. (hindawi.com)
  • Women with benign (non-cancerous) germ cell tumors such as mature teratomas (dermoid cysts) are cured by removing the part of the ovary that has the tumor (ovarian cystectomy) or by removing the entire ovary. (cancer.org)
  • Germ cell tumors of the brain include germinoma, teratoma, embryonal carcinoma and yolk-sac tumors. (cincinnatichildrens.org)
  • Choroid plexus tumors , which arise from cells lining the ventricles of the brain. (cincinnatichildrens.org)
  • Meningeal tumors , such as meningioma, which arise from the membranes (meninges) surrounding the brain and spinal cord. (cincinnatichildrens.org)
  • Mature teratomas (aka dermoid cysts) are germ cell tumors of the ovary that are both common and benign. (proprofs.com)
  • Teratomas are embryonal tumors that normally arise from germ cells and are typically benign. (asu.edu)
  • Because of these common findings and the fact that teratomas form in the embryonic stage, there is a myth that these tumors are an embryo themselves or a twin, but that is false. (rainbowkids.com)
  • Teratomas, even ones deemed benign, do come with a increased chance of reoccurrence of malignant tumors. (rainbowkids.com)
  • Malignancy arising in mixed tumors of the salivary gland is a distinct entity that can occur sporadically or in association with a background of pleomorphic adenoma. (ijpmonline.org)
  • Squamous cell carcinoma of the ovary is rare and usually arise from preexisting cystic teratomas, endometriosis or Brenner tumors which undergo carcinomatous degeneration in their epithelial elements. (koreamed.org)
  • In the rare case of somatic tumors arising within a benign teratoma, the choice of systemic therapy should be guided by the specific disease type. (medscape.com)
  • Among brain tumors , just 0.5 to 3 percent are germ cell tumors, and of these, about 20 percent are teratomas, Dehdashti said. (livescience.com)
  • Most germ cell tumors that arise in the brain occur in people younger than 30. (indiasurgerytour.com)
  • Benign teratomas are solid and cystic tumors composed of a variety of both immature and mature tissues derived from all three germ layers. (biomedcentral.com)
  • The following should be considered in the differential diagnosis of sinonasal teratomas: immature teratomas, teratomas with malignant transformation, sinonasal yolk sac tumors, sinonasal teratocarcinosarcomas, dermoid cysts, hamartomas, and hairy polyps. (biomedcentral.com)
  • Ovarian teratoma is a benign or malignant tumor belonging to a group of germ cell tumors. (motelmexicolabali.com)
  • Extragonadal germ cell tumors produce a rich symptomatology and may reach large volumes if they arise in silent areas. (medscape.com)
  • Those arising in nonvital organs can reach large sizes before becoming symptomatic, but small tumors may result in significant symptoms if they obstruct, compress, or rupture into important structures. (medscape.com)
  • Mature teratomas represent 60-70% of mediastinal germ cell tumors. (medscape.com)
  • Although 90-100% of malignant germ cell tumors are symptomatic, only 50% of teratomas produce symptoms. (medscape.com)
  • Mature teratoma rupture, teratoma with malignant transformation, and hematologic malignancies may complicate mediastinal germ cell tumors (see Complications). (medscape.com)
  • Teratomas of anterior mediastinum are rare tumors and are often slow growing, asymptomatic and detected incidentally on chest imaging. (biomedcentral.com)
  • Differential diagnosis includes neck teratomas, encephaloceles, and other tumors of the facial structures. (abelspeaks.org)
  • Teratomas are a germ cell tumors composed of two or more tissues which originate from ectoderm, endoderm or mesoderm. (medscape.com)
  • These tumors commonly arise from the ovary although other extragonadal sites can be involved, especially in children. (medscape.com)
  • Signs and symptoms common to many teratomas include: pain swelling and bleeding mildly elevated levels of alpha-feroprotein (AFP), a marker for tumors mildly elevated levels of the hormone. (zodicengineering.com)
  • The gross appearance of the resected ovary was typical for mature cystic teratoma. (nih.gov)
  • This is the first reported case, to our knowledge, of extramammary Paget's disease arising in mature cystic teratoma of the ovary. (nih.gov)
  • Herein, we report a 24-year-old female with neurocytoma in a mature teratoma of the right ovary. (biomedcentral.com)
  • Based on these findings, the woman was diagnosed with neurocytoma arising from mature ovary teratoma, with microscopic foci of immature cartilage tissues. (biomedcentral.com)
  • On her current pregnancy, she developed a mature cystic teratoma of the remaining left ovary. (etsu.edu)
  • What is cystic teratoma of the ovary? (motelmexicolabali.com)
  • Diagnosis and management of teratoma and epidermoid cysts. (pediatriconcall.com)
  • These cysts arise from temporary pathologic variations of a normal physiologic process and are not neoplastic. (medscape.com)
  • Teratoid cysts are composed of all three germ layers but are poorly differentiated, while true teratomas consist of three well-differentiated germlayers. (fortunejournals.com)
  • Mediastinal teratoma with coexisting adenovarcinoma and carcinoid tumour (somatic-type malignancy): A case report with a review of the literature. (ejournals.ca)
  • residual lesions may represent benign mature teratoma rather than malignancy. (medscape.com)
  • Based on the clinical finding, radiologic, and routine histopathological examination, this case was concluded as mature teratoma with somatic-type solid malignancy in the form of mucinous adenocarcinoma. (ejournals.ca)
  • Testicular mixed embryonal carcinoma and teratoma is a type of mixed germ cell cancer that arises from the testis. (withoutaribbon.org)
  • There is no known cause, but it is thought that certain genetic and hereditary mutations, as well as exposure to certain environmental factors, can cause the development of testicular mixed embryonal carcinoma and teratoma. (withoutaribbon.org)
  • What Support can we Give for Testicular Mixed Embryonal carcinoma and Teratoma? (withoutaribbon.org)
  • Testicular Mixed Embryonal carcinoma and Teratoma is rare cancer, meaning it is not as well-known as other forms of cancer. (withoutaribbon.org)
  • If you suffer from rare cancer such as Testicular Mixed Embryonal carcinoma and Teratoma, we can help and support you through your journey thanks to the generous donations we receive. (withoutaribbon.org)
  • Carcinomas arising in mature cystic teratomas of the ovaries from nine women were examined for the presence of p53 mutations. (keyopinionleaders.com)
  • The most common places for teratomas are the ovaries, testes and the tailbone, according to the National Cancer Institute. (livescience.com)
  • Our case report describes synchronous mucinous cystadenomas and ovarian teratomas, as well as metachronous mucinous cystadenomas in patients with a history of ovarian teratoma. (etsu.edu)
  • Ovarian teratomas in prepubertal females are uncommon, but familial ones are exceedingly rare. (motelmexicolabali.com)
  • What are the signs and symptoms of ovarian teratomas? (motelmexicolabali.com)
  • Most ovarian teratomas are mature. (motelmexicolabali.com)
  • Most GCTs are mature teratomas, which are are common and benign. (proprofs.com)
  • PURPOSE: Some fetuses with sacrococcygeal teratoma (SCT) develop hydrops, but there is no consensus on an appropriate prognostic marker for poor prognosis. (keyopinionleaders.com)
  • Sacrococcygeal teratomas are benign 75% of the time, malignant 12% of the time, and the remainder are considered "immature teratomas" that share benign and malignant features. (wikipedia.org)
  • Carcinoma arising with a background of pleomorphic adenoma is well documented. (ijpmonline.org)
  • The current study presents the case of a 44‑year‑old female exhibiting lobular carcinoma in situ (LCIS) arising within an FA. (spandidos-publications.com)
  • Buzanowski-Konakry K, Harrison EG Jr and Payne WS: Lobular carcinoma arising in fibroadenomas of the breast. (spandidos-publications.com)
  • Thyroid carcinoma arising within a mature cystic teratoma is even rarer. (sagepub.com)
  • We report an extremely rare case of synchronous follicular thyroid carcinoma arising within a mature cystic ovarian teratoma and stage IV differentiated. (sagepub.com)
  • Lee SY, Jo YM, Lee J, Cha SI, Park TI, Kim CH. Neuroendocrine Carcinoma Arising in a Mediastinal Teratoma with Pulmonary Metastasis: A Case Report and the Chemotherapy Response. (ejournals.ca)
  • Netto D, Satchidanand SK and Gaeta JF: Carcinomas arising in fibroadenomas: a report of two cases and a review of literature. (spandidos-publications.com)
  • Translocation-associated renal cell carcinomas (RCCs) arise from the proximal tubule epithelium, similar to conventional clear cell and papillary RCCs. (medscape.com)
  • Other sites where teratomas are found include the posterior nasopharynx, upper lip and nose, soft palate, and tonsil. (fortunejournals.com)
  • A mass with smooth surface, arising from the left posterior side of the nasal septum and filling the whole nasopharyngeal cavity, was seen on his endoscopic nasal examination. (biomedcentral.com)
  • In the remaining cases, angiosarcoma was associated with ovarian teratoma or epithelial neoplasm [ 2 , 4 ]. (hindawi.com)
  • Teratoma refers to a neoplasm that recapitulates all three germ layers. (biomedcentral.com)
  • As a general rule, pediatric teratomas of the head and neck tend to be oncologically benign, whereas adult teratomas tend to be histologically and oncologically malignant. (biomedcentral.com)
  • This case is a testicular mass arising in an adult male. (jhu.edu)
  • We report the case of a young adult male who presented with a cystic neck mass, due to degeneration of a cervical extension of a mature teratoma of the anterior mediastinum. (biomedcentral.com)
  • From these pathological findings, we concluded that the disease was an intraepithelial adenocarcinoma, possibly derived from multipotential cells in squamous epithelium of ovarian mature cystic teratoma. (nih.gov)
  • The epithelial component of a benign teratoma usually consists of mature squamous epithelium and immature intestinal or respiratory epithelium. (biomedcentral.com)
  • Adenocarcinoma with sarcomatous dedifferentiation arising from mature cystic teratoma of the anterior mediastinum. (ejournals.ca)
  • Shimizu K, Nakata M, Hirami Y, Akiyama T, Tanemoto K. Teratoma with malignant transformation in the anterior mediastinum. (ejournals.ca)
  • 4) Pure testicular teratomas in prepubertal boys have not been reported to metastasize, whereas testicular teratomas in adults are associated with clinical metastasis in 60% cases. (pediatriconcall.com)
  • Mariah MC, Malysz J. Malignant Transformation of a Teratoma Presenting with Metastasis to the Hip. (ejournals.ca)
  • citation needed] Complications of not removing the coccyx may include both recurrence of the teratoma and metastatic cancer. (wikipedia.org)
  • Fevre CL, Vigneron C, Schuster H, Walter A, Marcellin L, Massard G, Lutz P, Noel G. Metastatic mediastinal mature teratoma with malignant transformation in young man with an adenocarcinoma in Klinefelter's syndrome: Case report and review of the literature. (ejournals.ca)
  • Histo-pathology of the resected specimen confirmed the diagnosis of a mature cystic teratoma. (biomedcentral.com)
  • Pelvic ultrasound suggested pelvic abscess but after laparotomy and histological analysis of a bulky uterus removed a diagnosis of mature uterine teratoma was confirmed. (medscape.com)
  • Although it is rare, uterine teratoma should be considered in differential diagnosis to any patient with uterine mass even without typical radiological findings. (medscape.com)
  • VATS has also been described for resection of teratomas of the mediastinum. (medscape.com)
  • There has been no report of metachronous ipsilateral teratoma after previous mucinous cystadenoma. (etsu.edu)
  • We report a case of extramammary Paget's disease in ovarian mature cystic teratoma. (nih.gov)
  • Novel three-way complex rearrangement of TRPM1-PUM1-LCK in a case of agminated Spitz nevi arising in a giant congenital hyperpigmented macule. (nih.gov)
  • The present describes a case of LCIS arising within an FA and conducts a review of the relevant literature. (spandidos-publications.com)
  • In this article we describe a case of mature teratoma which ruputured automatically in 9thday with cleft palate. (fortunejournals.com)
  • Herein, we present a rare case, along with a review of the related literature, in order to emphasize that a benign teratoma of the nasal septum should not be ignored. (biomedcentral.com)
  • Lin C, Du Y, Li Y, Wang H, Chang J. Superior mediastinal mature cystic teratoma with gastrointestinal adenocarcinoma transformation: Report of a case. (ejournals.ca)
  • Sakurai H, Miyashita Y, Oyama T. Adenocarcinoma arising in anterior mediastninal mature cystic teratoma: Report of a case. (ejournals.ca)