Management of neonatal and infant aortic thrombosis: A single-center case series.

Neonatal and infant aortic thrombosis is a rare albeit life-threatening thrombotic event, particularly seen in premature infants with an arterial catheter in place. We describe our institutional experience and approach to the management of 11 infants with occlusive or nearly occlusive aortic thrombosis. We observed at least partial thrombus resolution in all patients.

The cochlear dose and the age at radiotherapy predict severe hearing loss after passive scattering proton therapy and cisplatin in children with medulloblastoma.

Background: Hearing loss (HL) is associated with worse neurocognitive outcomes among patients with medulloblastoma. We aimed to identify risk factors associated with severe HL and to evaluate the generalizability of a published HL calculator among patients treated with passive scattering proton therapy (PSPT) and cisplatin.

Methods: We identified patients aged 3-21 years who were treated at our centers between 2007 and 2022.

The role of neoadjuvant chemotherapy in the management of metastatic central nervous system germinoma: A meta-analysis.

Background: The role of neoadjuvant chemotherapy in treating patients with metastatic central nervous system (CNS) germinoma is controversial.

Methods: We compared the relapse-free survival (RFS) of different treatment modalities by performing a meta-analysis using published data. We summarized all data using standard descriptive statistics.

Prognostic factors for patients with relapsed central nervous system nongerminomatous germ cell tumors.

We aimed toidentify prognostic factors that may help better understand the behavior of relapsed central nervous system nongerminomatous germ cell tumors. We identified nine studies, including 101 patients; 33 patients (33%) were alive 12 months post-initial relapse. Sixty percent of patients with serum/cerebrospinal fluid (CSF) alpha-fetoprotein (AFP) level ≤25 ng/mL at initial diagnosis were survivors compared with 28% among patients with serum/CSF AFP level >25 ng/mL (P = 0.

A Novel Case of Concurrent T-cell and Early T-cell Precursor Lymphoblastic Lymphoma in an Adolescent Female.

In the context of an evolving understanding of early T-cell precursor (ETP) lymphoma and leukemia, we present a case of concurrent T-cell lymphoblastic lymphoma and ETP lymphoma in an adolescent female. To our knowledge, this represents the first reported case of both lymphoblastic lymphoma and ETP lymphoma as distinct and conjoined components of the same neoplasm. As an exception to current literature, our patient had a strictly lymphomatous ETP component with no leukemic manifestation.

Multi-institutional analysis of treatment modalities in basal ganglia and thalamic germinoma.

Background: Central nervous system (CNS) germinomas are treatment-sensitive tumors with excellent survival outcomes. Current treatment strategies combine chemotherapy with radiotherapy (RT) in order to reduce the field and dose of RT. Germinomas originating in the basal ganglia/thalamus (BGTGs) have proven challenging to treat given their rarity and poorly defined imaging characteristics.

Evaluation of the Pediatric Neuro-Oncology Resources Available in Chile.

Purpose: Pediatric neuro-oncology resources are mostly unknown in Chile. We report the human and material resources available in Chilean hospitals providing pediatric neuro-oncology services.

Methods: A cross-sectional survey was distributed to 17 hospitals providing pediatric neuro-oncology services (Programa Infantil Nacional de Drogas Antineoplásicas [PINDA] hospitals, 11; private, 6).

A Possible Case of Vertical Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) in a Newborn With Positive Placental In Situ Hybridization of SARS-CoV-2 RNA.

Little is known about the effects of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the coronavirus disease 2019 (COVID-19) on pregnant mothers and their infants. Moreover, there is no definitive evidence that SARS CoV- 2 can be vertically transmitted from an infected mother to the unborn fetus.

Pineoblastoma in children less than six years of age: The Head Start I, II, and III experience.

Background: We report the outcomes of patients with pineoblastoma and trilateral retinoblastoma syndrome enrolled on the Head Start (HS) I-III trials.

Methods: Twenty-three children were enrolled prospectively between 1991 and 2009. Treatment included maximal surgical resection followed by five cycles of intensive chemotherapy and consolidation with marrow-ablative chemotherapy and autologous hematopoietic cell rescue (HDCx/AuHCR).

The Risk of Developing Secondary Central Nervous System Tumors After Diagnostic Irradiation From Computed Tomography in Pediatrics: A Literature Review.

Background: Advanced diagnostic imaging has provided tremendous benefits; however, increased use of ionizing radiation modalities such as cranial computed tomography (CT) may be associated with an increased risk of developing central nervous system tumors.

Methods: A literature review identified studies published for more than the last 50 years from 1968 to 2018 that explored the association between head CT scans and developing central nervous system tumors in pediatrics. We reviewed seven studies that described and analyzed the risk of brain tumors.

Critical review of the management of primary central nervous nongerminomatous germ cell tumors.

Multimodal strategies have significantly improved the outcomes for patients with central nervous system nongerminomatous germ cell tumors. Two large cooperative group studies have recently reported much improved outcomes compared with historical series. However, a substantial proportion of patients still attain inadequate responses to initial chemotherapy prior to irradiation, with adverse impact upon survival; optimal induction chemotherapy regimens and radiotherapy strategies are as yet unidentified.

Germinoma Involving the Retina: An Unusual Presentation of Recurrent Intracranial Mixed Germ Cell Tumor.

Background: We report a patient with primary central nervous system mixed malignant germ cell tumor (GCT) who presented with recurrent malignant germinomatous infiltration of the retina.

Case Description: A 10-year-old girl initially presented with a large suprasellar mixed malignant GCT with a near-complete response after initial induction of chemotherapy and irradiation. Three and a half years after initial therapy, she presented with progressively worsening vision in her left eye.

The Latin American Brain Tumor Board teleconference: results of a web-based survey to evaluate participant experience utilizing this resource.

Purpose: The Latin American Brain Tumor Board (LATB) is a weekly teleconference connecting pediatric neuro-oncologists from referral centers in high-income countries with pediatric subspecialists from 20 Latin American countries since 2013. This survey explored the participants' experience utilizing this resource.

Methods: A cross-sectional electronic questionnaire was distributed to 159 participants through email and Cure4Kids.

Re-induction chemotherapy regimens in patients with recurrent central nervous system mixed malignant germ cell tumors.

Background: The lack of a standard treatment approach has contributed to poor outcomes of patients with recurrent central nervous system (CNS) mixed malignant germ cell tumors (MMGCT). There are no data in the literature supporting optimal re-induction chemotherapy regimens that should be used for patients with recurrent CNS MMGCT.

Methods: We conducted a literature review to explore the response rate of patients with recurrent CNS MMGCT to different re-induction chemotherapy regimens by searching PubMed from 1985 through November 2017.

Brentuximab-vedotin maintenance following chemotherapy without irradiation for primary intracranial embryonal carcinoma in down syndrome.

Background: Germ cell tumors (GCT) are the most common central nervous system (CNS) tumors in individuals with Down syndrome. Patients with Down syndrome treated with CNS irradiation are at increased risk of developing cerebrovascular complications such as moyamoya disease. Embryonal carcinoma components are recognized to be more resistant to conventional chemotherapy and radiotherapy and confer a very poor prognosis.

Synchronous Central Nervous System Atypical Teratoid/Rhabdoid Tumor and Malignant Rhabdoid Tumor of the Kidney: Case Report of a Long-Term Survivor and Review of the Literature.

Background: Atypical teratoid/rhabdoid tumor (AT/RT) of the central nervous system (CNS) with synchronous or metachronous extra-CNS disease is a rare childhood malignancy with a dismal prognosis.

Case Description: We report a 7-week-old female with metastatic AT/RT and synchronous malignant rhabdoid tumor of the kidney who received an intensive multimodal approach combining surgical resection, intrathecal chemotherapy, and high-dose chemotherapy with autologous peripheral blood stem cell transplant (PBSCT). She is currently 24 months old without any evidence of disease.