A Fusion Model of MRI Deep Transfer Learning and Radiomics for Discriminating between Pilocytic Astrocytoma and Adamantinomatous Craniopharyngioma.

Rationale And Objectives: This study aimed to develop and validate a fusion model combining MRI deep transfer learning (DTL) and radiomics for discriminating between pilocytic astrocytoma (PA) and adamantinomatous craniopharyngioma (ACP) in the sellar region.

Methods: This study included 348 patients with histologically confirmed PA (n = 139) and ACP (n = 209). Data were randomly divided into training and testing cohorts in a 7:3 ratio.

Advancements in Molecular Diagnosis and Pharmacotherapeutic Strategies for Invasive Pituitary Adenomas.

Background: The overwhelming majority of pituitary tumors consist of pituitary adenomas (PAs), which have recently also been termed pituitary neuroendocrine tumors (PitNETs). Clinically significant PAs occur in approximately one in every 1000 individuals, while other types of pituitary tumors, such as craniopharyngiomas and pituicytomas, are significantly less common. Although PAs are generally benign, a subset of them exhibits malignant-like biological traits.

Diagnostic considerations of tumors of the sellar region according to their geometry and vector growth.

Introduction: Sellar and parasellar tumors are frequent lesions in neurosurgical practice, highlighting pituitary adenomas, craniopharyngiomas, and sellar tubercle meningiomas. The clinical manifestations are similar, however; There are imaging aspects that differentiate them.

Objective: Show imaging aspects of tumors in the sellar and parasellar region that guide their histopathological diagnosis.

[Pituicitoma in a patient with neurofibromatosis type 1].

Pituicytoma is a rare low degree tumor that arises from pituicytes in the infundibulum and posterior pituitary gland. As they do not have characteristic radiological features, they can be misdiagnosed as pituitary adenoma, meningioma, or craniopharyngioma. Clinically, patients can present with hormonal disturbances, headaches and visual field defects.

Endoscopic transsphenoidal surgery for infradiaphragmatic craniopharyngiomas and impact of diaphragm sellae competence on hypothalamic injury.

Investigate the impact of diaphragm sellae competence on surgical outcomes and risk factors for postoperative hypothalamic injury (HI) in patients undergoing endoscopic transsphenoidal surgery (ETS) for infradiaphragmatic craniopharyngiomas (ICs). A retrospective analysis of 54 consecutive patients (2016-2023) with ICs treated by ETS was conducted. All tumors originated from the sellar region inferior to the diaphragm sellae and were classified into two subtypes in terms of diaphragm sellae competence: IC with competent diaphragm sellae (IC-CDS) and IC with incompetent diaphragm sellae (IC-IDS).

Cerebral Vasospasm Following the Endoscopic Endonasal Resection of Craniopharyngioma.

Cerebral vasospasm following an endoscopic endonasal resection of a craniopharyngioma is a rare, devastating occurrence that can lead to delayed cerebral ischemia and a poor neurological outcome if not diagnosed and treated in a timely manner. The etiology of this condition is not well understood. In this chapter, we present a case of cerebral vasospasm following transsphenoidal surgery (TSS) for craniopharyngioma, review the literature, and identify common presenting symptoms, probable predisposing factors, and essential management strategies to treat this condition.

Extended endoscopic endonasal trans-tubercular approach and radical resection of a giant calcified craniopharyngioma with pituitary stalk preservation - Technical nuances and steps.

This case highlights the surgical steps and nuances in preserving the pituitary stalk to ensure good endocrinological outcomes during endoscopic craniopharyngioma resection.

Update on Neoadjuvant and Adjuvant BRAF Inhibitors in Papillary Craniopharyngioma: A Systematic Review.

: The recent discovery of BRAF mutation in papillary craniopharyngiomas opened new avenues for targeted therapies to control tumour growth, decreasing the need for invasive treatments and relative complications. The aim of this systematic review was to summarize the recent scientific data dealing with the use of targeted therapies in papillary craniopharyngiomas, as adjuvant and neoadjuvant treatments. : The PRISMA guidelines were followed with searches performed in Scopus, MEDLINE, and Embase, following a dedicated PICO approach.

Response assessment in pediatric neurooncology (RAPNO) criteria revisited: a practical navigation guide for neuroradiologists.

The Response Assessment in Pediatric Neuro-Oncology (RAPNO) Working Group is an international, collaborative network of experts dedicated to pediatric central nervous system (CNS) tumors that was created in 2011. Since then, six RAPNO articles with imaging guidelines for response assessment in diverse pediatric tumor subgroups have been published, namely: 1) medulloblastomas and leptomeningeal seeding tumors (2018), 2) pediatric high-grade gliomas (2020), 3) pediatric low-grade gliomas (2020), 4) diffuse intrinsic pontine gliomas (2020), 5) pediatric intracranial ependymomas (2022) and 6) pediatric craniopharyngiomas (2023). The purpose of this article is to review all current available RAPNO criteria using a systematized and comparative approach centered on the role of neuroradiologists and supported by neuroimaging examples.

Posterior Fossa Craniopharyngioma Arising from the Inferior Medullary Velum.

We report the case of a 63-year-old man with a midline posterior fossa tumor and peculiar imaging features where we were unsure of the nature of the lesion preoperatively. Histopathology revealed it to be a craniopharyngioma. It appeared to arise from the inferior medullary velum, a site not described before in the literature.

Analysis of the different pathways of ectopic recurrence of craniopharyngioma in pediatric patients: presentation of cases and review of the literature.

Purpose: Craniopharyngioma is a tumor derived from the squamous epithelium of Rathke's pouch. Despite successful excision, recurrence is common, typically occurring at the original tumor site. More rarely, recurrences can manifest at distant locations.

Ommaya Reservoir-Assisted Treatment for Giant Cystic Solid Craniopharyngioma in Children.

Objective: In children with giant cystic solid craniopharyngioma (CP), the Ommaya reservoir was implanted in the CP cavity, and the cystic fluid was continuously drained for 5 days before the tumor resection.

Methods: An 11-year-old male patient was admitted to the hospital due to vision loss for 1 year, intermittent headache, vomiting for 6 months, and frequent urination for 2 months. Besides, magnetic resonance imaging of the head showed cystic solid lesions in the sellar region, suprasellar, and bilateral frontal lobes, with a size of 96.

Extraconal orbital craniopharyngioma.

A female, in her 60s, presented with pain and swelling of the right eye for 3 years. The radiological work-up revealed an extraconal solid-cystic orbital tumour suggestive of an epidermoid cyst. The patient underwent supraorbital craniotomy with a gross total excision of the tumour.