Search Results

You are looking at 1 - 10 of 11 items for :

  • "third ventriculostomy" x
  • Refine by Access: all x
Clear All
Open access

Diffusely invasive supratentorial rosette-forming glioneuronal tumor: illustrative case

Brittany Owusu-Adjei, Constance J Mietus, Jeewoo Chelsea Lim, William Lambert, Rrita Daci, David Cachia, Thomas W Smith, and Peter S Amenta

+ – – + Biopsy & radiation – 49 Lu et al., 2009 42 79 3rd ventricle + – + – ETV NA Ant = anterior; ETV = endoscopic third ventriculostomy; NA = not available; STR = subtotal resection; VPS = ventriculoperitoneal shunt; – = no; + = yes. Imaging Characteristics Rosette-forming glioneuronal tumor typically arises in the fourth ventricle and can invade surrounding posterior fossa structures and rarely the spinal cord. Rarely, lesions can involve supratentorial structures including the pineal region, optic chiasm, and septum pellucidum

Open access

Sinus pericranii in the setting of a posterior fossa pilocytic astrocytoma: illustrative case

Youngkyung Jung, Jennifer L. Quon, and James M. Drake

postoperative magnetic resonance venogram (MRV), likely secondary to reduced compression ( Fig. 3 ). However, the patient continued to have high EVD output, and we decided to proceed with an endoscopic third ventriculostomy, as there was some reluctance in passing a shunt tunneler near the venous network. Pathological evaluation by frozen section was consistent with a pilocytic astrocytoma. FIG. 3. Postoperative axial ( A ) and sagittal ( B ) T1-weighted MRI with contrast demonstrating interval resection of lesion with improved hydrocephalus and mass effect of fourth

Open access

Malignant transformation of a cerebral dermoid cyst into a squamous cell carcinoma with malignant intraperitoneal spreading along a ventriculoperitoneal shunt: illustrative case

Robert C. Nickl, Vera Nickl, Magnus Schindehütte, Camelia-Maria Monoranu, Ralf-Ingo Ernestus, and Mario Löhr

Although the prevalence of shunt related metastases is still unknown especially in the case of obstructive hydrocephalus, the use of an endoscopic third ventriculostomy (ETV) is an alternative treatment option. 21 To the best of our knowledge, this is the first case of an extracerebral spread of a malignant DC, which occurred through a previously implanted VP shunt due to hydrocephalus after presumed cyst rupture. Lessons We emphasize to take malignant transformation as a differential diagnosis into account, if leptomeningeal contrast-enhancement is present in

Open access

Subtle magnetic resonance imaging differences in tegmental pilocytic astrocytomas as a caution against attempting gross-total resection: illustrative cases

Tariq Al-Saadi, Steffen Albrecht, Jean-Pierre Farmer, Daniela Toffoli, Christine Saint-Martin, Nada Jabado, and Roy W. R. Dudley

on the T2-weighted and FLAIR sequences, and it showed very faint and patchy gadolinium enhancement. There was no restricted diffusion. His neurological examination result was normal, except for his subtle eye movement abnormalities with partial right third-nerve palsy. An uneventful endoscopic third ventriculostomy was performed the same day. It was believed that this tumor was most likely a PA. Upon discussion with our neuro-oncology group, surgery was recommended as the best option for long-term tumor control and to address his progressive symptoms. FIG. 2

Open access

Use of the 3D exoscope for the supracerebellar infratentorial approach in the concorde position: an effective and ergonomic alternative. Illustrative cases

Jorge A. Roa, Alexander J. Schupper, Kurt Yaeger, and Constantinos G. Hadjipanayis

compression ( Fig. 2A and B ). An MRI of the brain confirmed presence of a contrast-enhancing mixed cystic and solid pineal region mass, 2.3 × 1.1 × 1.7 cm with a 1.1 × 1.0 × 1.4 cm anterior cystic component compressing the cerebral aqueduct ( Fig. 2C and D ). The patient and his family were counseled on the need for surgery and treatment of his obstructive hydrocephalus. An endoscopic third ventriculostomy in combination with a diagnostic biopsy of the mass was performed. Pathological results confirmed the diagnosis of an anaplastic ependymoma. One month later, the patient

Open access

Mixed germ cell tumor infiltrating the pineal gland without elevated tumor markers: illustrative case

Koji Shiomi, Yoshiki Arakawa, Sachiko Minamiguchi, Haruki Yamashita, Yukinori Terada, Masahiro Tanji, Yohei Mineharu, Katsutsugu Umeda, Megumi Uto, Junko Takita, Hironori Haga, Takashi Mizowaki, and Susumu Miyamoto

isointense tumor in the pineal region. Biopsy in a Local Hospital The patient was treated with endoscopic third ventriculostomy in combination with a tumor biopsy in a local hospital. On histopathological examination, tumor specimens comprised a cystic portion and a solid portion ( Fig. 2A and B ). Histopathological examination showed the cystic portion was lined by an epithelial monolayer with no atypia ( Fig. 2A and C ). The solid portion comprised sheets of uniform cells with round nuclei. The Ki-67 labeling index was higher than 1% in some parts ( Fig. 2C

Open access

Enlarged tumefactive perivascular, or Virchow-Robin, spaces and hydrocephalus: do we need to treat? Illustrative cases

Belal Neyazi, Vanessa Magdalena Swiatek, Klaus-Peter Stein, Karl Hartmann, Ali Rashidi, Seraphine Zubel, Amir Amini, and I. Erol Sandalcioglu

instability. Diagnostic testing included MRI, which revealed a multicystic lesion in the area of the right basal ganglia and extending into the mesencephalon and pedunculus cerebelli ( Fig. 1B ). Importantly, there were no signs of hydrocephalus. Prior to presenting at our clinic, the patient had already undergone endoscopic third ventriculostomy and biopsy at a different hospital. Postoperatively, there was neither improvement nor a worsening of symptoms, and MRI findings remained stable. This case underscores the challenges associated with managing multicystic lesions in

Open access

Pineal parenchymal tumor of intermediate differentiation with late spinal dissemination 13 years after initial surgery: illustrative case

Hiroyuki Kato, Takafumi Tanei, Yusuke Nishimura, Yoshitaka Nagashima, Motonori Ishii, Tomoya Nishii, Nobuhisa Fukaya, Takashi Abe, and Ryuta Saito

intracranial PPTID. Illustrative Case A 14-year-old female presented with headache and diplopia. Bilateral papilledema and left eye abduction disorders were also observed. Magnetic resonance imaging (MRI) revealed a solitary mass lesion in the pineal region with contrast enhancement on T1-weighted imaging, which induced obstructive hydrocephalus ( Fig. 1 ). The patient had no relevant medical or family history. Initially, a biopsy of the lesion and endoscopic third ventriculostomy were performed. Histological examination revealed hypercellular proliferation, small

Open access

Endoscopic resection of a giant colloid cyst in the velum interpositum: illustrative case

Mahdi Arjipour, Mohammad Gharib, and Mohamadmehdi Eftekharian

into consideration. Operation The patient underwent surgery through an endoscopic approach to the lesion. After entering the ventricular space from the right side, the lesion was observed. At first, a cerebrospinal fluid sample was taken and an endoscopic third ventriculostomy was undertaken for hydrocephalus treatment. Then, after the mass wall opening at the superior part, there was a firm nonsuctionable solid gray-yellow material inside the lesion, which was not typical for a colloid cyst. Thus, the solid lesion content was resected in a piecemeal manner

Open access

Endoscopic placement of a triventricular stent for complex hydrocephalus and isolated fourth ventricle: illustrative case

V. Jane Horak, Beste Gulsuna, Melissa A LoPresti, and Michael DeCuypere

revising the article: all authors. Reviewed submitted version of manuscript: all authors. Approved the final version of the manuscript on behalf of all authors: DeCuypere. Administrative/technical/material support: Horak. Study supervision: DeCuypere. References 1 Ferrer E , de Notaris M . Third ventriculostomy and fourth ventricle outlets obstruction . World Neurosurg . 2013 ; 79 ( 2 Suppl ): S20.e9 – e13 . 2 Bock HC , Dreha-Kulaczewski SF , Alaid A , Gärtner J , Ludwig HC . Upward movement of cerebrospinal fluid in