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Teratom 

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  1. 12.03.2024 | Polyhydramnion | BriefCommunication

    Teratom bei Frühchen: Fast die Hälfte des Geburtsgewichts

    In einer bis dato unauffälligen Schwangerschaft wird in der 23 + 3 SSW ein großer Tumor am Rücken eines Feten festgestellt. Im weiteren Verlauf wächst der Tumor schnell und führt unweigerlich zur fetalen Anämie und Herzinsuffizienz. In diesem Fallbericht lesen Sie, wie die Wahl des richtigen Geburtszeitpunkts den Jungen rettete. 

  2. Open Access 26.12.2023 | OriginalPaper

    MRI findings of malignant transformation arising from mature cystic teratoma of the ovary: comparison with benign mature cystic teratoma

    Mature cystic teratomas (MCTs) of the ovary are the most common type of germ cell tumor accounting for 20% of all ovarian neoplasms. MCTs can occur in women of various ages, with the highest occurrence observed in women of reproductive age [ 1 – 3 …

  3. 31.05.2024 | Online First

    Vasospasm and subsequent stroke from paraneoplastic syndrome in a pediatric patient with an intracranial mature teratoma: a case report

    Teratomas account for 18–20% of all intracranial germ cell tumors and mostly occur in the pineal region with only a few cases of pediatric sellar and suprasellar teratomas described in the literature. Here, we present a case of a child with an …

  4. 19.02.2024 | OriginalPaper

    Pulsatile giant sacrococcygeal teratoma appearing like 2nd head

    Sacrococcygeal teratoma is a congenital tumor of early infancy. Eighty percent are present in the first month of life. It is considered to be an extragonadal germ cell tumor that can be diagnosed in utero. It is considered to be a rare tumor in …

  5. Open Access 01.12.2024 | OriginalPaper

    Large congenital cervical mass in a neonate: prenatal diagnosis and postnatal management of teratoma: a case report

    Cervical teratomas are rare congenital germ cell tumours originating from all three germ layers that can potentially obstruct the airway. While the incidence is estimated at 1 in 20,000–40,000 live births, these tumours represent a diagnostic and …

  6. Open Access 01.12.2024 | OriginalPaper

    Mature cystic teratoma with co-existent mucinous cystadenocarcinoma: describing a diagnostic challenge—a case report

    Mature cystic teratoma co-existing with a mucinous cystadenocarcinoma is a rare tumor that few cases have been reported till now [ 1 ]. In these cases, either a benign teratoma is malignantly transformed into adenocarcinoma or a collision tumor …

  7. Open Access 01.12.2024 | OriginalPaper

    A basaloid carcinoma with multilocular thymic cyst mimicking a mediastinal teratoma

    This case report details a rare thymic basaloid carcinoma initially misinterpreted as a mediastinal teratoma, underscoring the diagnostic challenges posed by such tumors. A 71-year-old female presented with an asymptomatic anterior mediastinal …

  8. Open Access 29.04.2024 | Online First

    Prenatal diagnosis of meningomyelocele resolves as a mature cystic teratoma in the thoracolumbar region

    A mature cystic teratoma is a mass with heterogeneous appearance, consisting of adult tissue with two or three layers: endoderm, mesoderm, and ectoderm. It is a rare, benign transformation of somatic tissue most commonly found in the …

  9. 07.02.2024 | OriginalPaper

    Malignant Transformation of an Ovarian Mature Cystic Teratoma to a Malignant Melanoma

    Ovarian mature cystic teratomas comprise tissue derived from all three germ layers and constitute 10–20% of all ovarian neoplasms. Malignant transformation of mature cystic teratomas (MCT) is very rare with an incidence of 0.17–2%. The most …

  10. Open Access 26.01.2024 | OriginalPaper

    Pediatric sellar teratoma – Case report and review of the literature

    Intracranial germ cell tumors (ICGCT) are rare and account for approximately 3% of all central nervous system (CNS) tumors in children and young adults and they rarely occur after the 4th decade of life [ 1 – 3 ]. The incidence of pediatric ICGCTs …

  11. Open Access 01.12.2024 | OriginalPaper

    Squamous cell carcinoma malignant transformation in mature cystic teratoma of the ovary: a case report and review of the literature

    Mature cystic teratoma of the ovary (MCTO) is a benign ovarian neoplasm consisting of well-differentiated germ cell layers. This tumor, also known as the dermoid cyst, accounts for 60% of all benign ovarian tumors [ 1 , 2 ]. The etiology and …

  12. 25.11.2023 | OriginalPaper

    Mature Cystic Oral Teratoma in a Neonate- A Case Report

    Background: Neonatal oral cavity masses present complex diagnostic and management challenges, often involving respiratory distress. We present a case of a 1-day-old male neonate with an oral cavity mass and respiratory distress, whose antenatal …

  13. Open Access 23.02.2024 | OriginalPaper

    MR diagnosis of SCC arising within ovarian cystic teratomas: analysis of mural nodule characteristics

    Mature cystic teratoma (MCT) is a common, benign ovarian neoplasm, accounting for 20% of all ovarian neoplasms and 60% of all benign ovarian tumors [ 1 , 2 ]. Malignant transformation occurs in approximately 2% of MCTs (range, 0.8%–5.5%) [ 2 ] …

  14. 10.03.2024 | Online First

    Mature Teratoma with Malignant Brenner Tumour: A Rare Ovarian Collision Tumour Case Report and Literature Review

    Collision tumor is existence of distinct tumors in the same tissue or organ without admixture. Although any histological type of ovarian tumor may occur in collision tumor, the mature teratoma is one of the most found component. Brenner tumor is a …

  15. Open Access 01.12.2024 | OriginalPaper

    Surgical management of mediastinal mature cystic teratoma of the elderly remaining asymptomatic

    Teratomas are the most common mediastinal germ cell tumors (60-70%). They’re known to be the most common extragonadal germ cell tumors in prepubertal and post pubertal patients, regardless of sex, representing 15% of all mediastinal masses in …

  16. 27.02.2024 | Online First

    Ovarian Mature Cystic Teratoma with Intraperitoneal Lesions, an Unusual Presentation: A Case Report

    Mature cystic teratoma (MCT) of the ovary, also known as dermoid cyst, is the most common benign neoplasm of the ovary. Mature teratomas are a type of germ cell tumor that contain well-differentiated embryological tissues from more than one germ …

  17. 12.12.2023 | OriginalPaper

    Immature Teratoma of Ethmoid Sinus Masquerading as Antrochoanal Polyp: A Rare Case Report with Literature Review

    Teratomas are rare neoplasms that arise from totipotent stem cells. Teratomas of the head and neck are extremely rare, constituting about 10% of all cases and usually present in the neonatal period. Extensive literature search has shown that there …

  18. 16.12.2023 | OriginalPaper

    Primary Right Adrenal Teratoma in a Postmenopausal Female: a Case Report and Review of Literature

    Non-seminomatous germ cell tumors with structural components from all three cellular lineages are called teratomas. We report a rare case of a primary right adrenal teratoma in a postmenopausal female, presenting with abdominal pain. Ultrasound …

  19. 02.03.2024 | ReviewPaper

    Simultaneous spine extradural and intradural teratomas in a pediatric patient: A rare presentation with insights in the flawed migration of germ cells theory

    Spinal teratomas are infrequent lesions in the pediatric population. These lesions can be extradural, intradural or intramedullary. We present a case of an 8-month-old boy that was assessed for underdevelopment of motor milestones. The neurologic …

  20. 15.07.2023 | BriefCommunication

    Perforated teratoma with multiple cystic lesions throughout the abdomen

    A 48-year-old woman was admitted with a pelvic tumor uncertain dignity. In the physical examination, the tumor was mobile, hard and reached 2 cm below the umbilicus. Sonographically, multiple cystic lesions up to 9 cm in size were visualized …

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e.Medpedia

Keimzelltumoren bei Kindern und Jugendlichen

Kinderchirurgie
Keimzelltumoren des Kindes sind Tumoren, deren Ursprung auf primordiale Keimzellen zurückgeführt wird. Das biologische Verhalten von Keimzelltumoren wird ganz wesentlich vom Alter des Patienten, Geschlecht, Tumorsitz, Histologie, aber auch Zytogenetik und Molekularbiologie beeinflusst. Keimzelltumoren umfassen ein breites Spektrum von Entitäten mit unterschiedlicher Klinik, Histologie und Biologie. Keimzelltumoren können maligne oder benigne sein, letzteres meist mit einem malignen Potenzial. Unterschieden werden extrakranielle Keimzelltumoren der Geschlechtsdrüsen (gonadal) von Tumoren anderer Lokalisation (extragonadal). Die Behandlung von Keimzelltumoren erfolgt überwiegend innerhalb multizentrischer prospektiver Therapiestudien. Diagnostik und Therapie intrakranieller Keimzelltumoren gehorchen besonderen Regeln und sind nicht Gegenstand dieses Kapitels (Plant et al. 2016, Pediatric malignant germ cell tumors: a comparison of the neuro-oncology and solid tumor experience. Pediatr Blood Cancer 63:2086–2095).

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