1
|
Shi S, Guo P, Li W, Wang W. 3D Real IR MR Findings in Acoustic Neuromas: Altered Perilymph Metabolism. EAR, NOSE & THROAT JOURNAL 2024; 103:NP173-NP178. [PMID: 34560831 DOI: 10.1177/01455613211047124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES This study aimed to investigate the perilymph metabolism by analyzing the 3D real IR MR findings in acoustic neuroma (AN) after intravenous administration of gadolinium (Gd). METHODS Eleven patients (6 men and 5 women) diagnosed with AN were included, and 3D real IR MRI was performed 4 hours after intravenous Gd injection. The signal intensity and details of inner ear, tumor, and internal auditory canal (IAC) by MRI were analyzed. RESULTS Four patients had tumors confined to the IAC, and 5 had tumors that extended to the cerebellopontine angle cistern. The signal intensity of the cochlea, vestibule, and IAC fundus was conspicuously enhanced in 3D real IR images than the control side. One patient had a tumor in the cochlea, in which the signal intensity of the semicircular canal and vestibule was increased. One patient had an intravestibular tumor in which the signal intensity of the semicircular canal was increased and the cochlea had endolymphatic hydrops in the affected ear. CONCLUSIONS The synchronously increased signal intensity in the inner ear and IAC may indicate that IAC may serve as a channel for removal of the perilymph in the inner ear; the blockage by the tumor may have changed the hydrodynamics of the perilymph to cause a longer retention of Gd in the inner ear.
Collapse
Affiliation(s)
- Suming Shi
- ENT Institute and Otorhinolaryngology Department, Affiliated Eye and ENT Hospital, Fudan University, Shanghai, China
- Key Laboratory of Hearing Medicine of National Health and Family Planning Commission (NHFPC), Fudan University, Shanghai, China
| | - Ping Guo
- ENT Institute and Otorhinolaryngology Department, Affiliated Eye and ENT Hospital, Fudan University, Shanghai, China
- Key Laboratory of Hearing Medicine of National Health and Family Planning Commission (NHFPC), Fudan University, Shanghai, China
| | - Wenquan Li
- Department of Otolaryngology, The Second Affiliated Hospital of Soochow University, Soochow, China
| | - Wuqing Wang
- ENT Institute and Otorhinolaryngology Department, Affiliated Eye and ENT Hospital, Fudan University, Shanghai, China
- Key Laboratory of Hearing Medicine of National Health and Family Planning Commission (NHFPC), Fudan University, Shanghai, China
| |
Collapse
|
2
|
Nishimura K, Murofushi T, Hakuba N. Case report: Concurrent intravestibular schwannoma mimicking Ménière's disease and cochlear hydrops detected via delayed three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging. Front Neurol 2022; 13:1043452. [PMID: 36438944 PMCID: PMC9681896 DOI: 10.3389/fneur.2022.1043452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 10/06/2022] [Indexed: 11/11/2022] Open
Abstract
Objective To present a case of intralabyrinthine schwannoma (ILS) presenting as Ménière's disease diagnosed via 4-h delayed gadolinium-enhanced three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging (3D-FLAIR MRI) and treated successfully using the translabyrinthine approach. Patient A patient who was diagnosed with intravestibular ILS. Interventions The patient underwent comprehensive preoperative neurological examinations and MRI. The tumor was resected using the translabyrinthine approach and was pathologically confirmed as schwannoma based on the surgical specimen. Main outcome measures Preoperative audiogram and vestibular test findings and MRI images. Results Preoperatively, pure-tone audiogram showed progressive sensorineural hearing loss only on the affected side. The video head impulse test and vestibular evoked myogenic potential test showed vestibular dysfunction on the affected ear. Immediate gadolinium-enhanced T1-weighted MRI revealed an enhanced region in the vestibule. Meanwhile, magnetic resonance cisternography showed a filling defect. Delayed 3D-FLAIR MRI revealed a signal void in the scala media of the cochlea indicative of cochlear hydrops, and a strong signal in the perilymph at the basal cochlea suggestive of impaired blood–labyrinthine barrier. Conclusion Delayed 3D-FLAIR MRI is useful in diagnosing concurrent ILSs and endolymphatic hydrops.
Collapse
|
3
|
Mehta GU, Kim HJ, Gidley PW, Daniels AB, Miller ME, Lekovic GP, Butman JA, Lonser RR. Endolymphatic Sac Tumor Screening and Diagnosis in von Hippel-Lindau Disease: A Consensus Statement. Skull Base Surg 2022; 83:e225-e231. [DOI: 10.1055/s-0041-1725033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/01/2021] [Indexed: 10/21/2022]
Abstract
Abstract
Objective Endolymphatic sac tumors (ELSTs) are a frequent cause of hearing loss and other audiovestibular dysfunction in patients with von Hippel-Lindau disease (VHL). Unified screening recommendations for VHL patients have not been established. To develop consensus guidelines, the VHL Alliance formed an expert committee to define evidence-based clinical screening recommendations.
Patients and Methods Recommendations were formulated by using the Grading of Recommendations, Assessment, Development, and Evaluation framework after a comprehensive literature review.
Results Diagnosis of ELSTs in VHL requires a combination of clinical evaluation and imaging and audiometric findings. Audiovestibular signs/symptoms are often an early feature of small ELSTs, including those that are not visible on imaging. Diagnostic audiograms have the greatest sensitivity for the detection of ELST-associated sensorineural hearing loss and can help confirm clinically relevant lesions, including those that may not be radiographically evident. Magnetic resonance imaging (MRI) can be a more specific test for ELSTs in VHL particularly when supplemented with computed tomography imaging for the identification of small tumors. VHL patients between the ages 10 and 60 years carry high preponderance for ELST presentation.
Conclusion We recommend that clinical evaluation (yearly) and diagnostic audiograms (every other year) be the primary screening tools for ELSTs in VHL. We suggest that screening be performed between the ages 11 and 65 years or with the onset of audiovestibular signs/symptoms for synchronicity with other testing regimens in VHL. We recommend that baseline imaging (MRI of the internal auditory canals) can be performed between the ages of 15 and 20 years or after positive screening.
Collapse
Affiliation(s)
- Gautam U. Mehta
- Division of Neurosurgery, House Institute, Los Angeles, California, United States
| | - H. Jeffery Kim
- Neuro-Otology Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland, United States
- Department of Otolaryngology-Head and Neck Surgery, Georgetown University Medical Center, Washington, District of Columbia, United States
| | - Paul W. Gidley
- Department of Head and Neck Surgery, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States
| | - Anthony B. Daniels
- Division of Ocular Oncology and Pathology, Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Mia E. Miller
- Division of Neurotology, House Institute, Los Angeles, California, United States
| | - Gregory P. Lekovic
- Division of Neurosurgery, House Institute, Los Angeles, California, United States
| | - John A. Butman
- Neuroradiology Section, Radiology and Imaging Sciences Department, The Clinical Center, National Institutes of Health, Bethesda, Maryland, United States
| | - Russell R. Lonser
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Ohio State University, Columbus, Ohio, United States
| |
Collapse
|
4
|
Dlugaiczyk J. Rare Disorders of the Vestibular Labyrinth: of Zebras, Chameleons and Wolves in Sheep's Clothing. Laryngorhinootologie 2021; 100:S1-S40. [PMID: 34352900 PMCID: PMC8363216 DOI: 10.1055/a-1349-7475] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The differential diagnosis of vertigo syndromes is a challenging issue, as many - and in particular - rare disorders of the vestibular labyrinth can hide behind the very common symptoms of "vertigo" and "dizziness". The following article presents an overview of those rare disorders of the balance organ that are of special interest for the otorhinolaryngologist dealing with vertigo disorders. For a better orientation, these disorders are categorized as acute (AVS), episodic (EVS) and chronic vestibular syndromes (CVS) according to their clinical presentation. The main focus lies on EVS sorted by their duration and the presence/absence of triggering factors (seconds, no triggers: vestibular paroxysmia, Tumarkin attacks; seconds, sound and pressure induced: "third window" syndromes; seconds to minutes, positional: rare variants and differential diagnoses of benign paroxysmal positional vertigo; hours to days, spontaneous: intralabyrinthine schwannomas, endolymphatic sac tumors, autoimmune disorders of the inner ear). Furthermore, rare causes of AVS (inferior vestibular neuritis, otolith organ specific dysfunction, vascular labyrinthine disorders, acute bilateral vestibulopathy) and CVS (chronic bilateral vestibulopathy) are covered. In each case, special emphasis is laid on the decisive diagnostic test for the identification of the rare disease and "red flags" for potentially dangerous disorders (e. g. labyrinthine infarction/hemorrhage). Thus, this chapter may serve as a clinical companion for the otorhinolaryngologist aiding in the efficient diagnosis and treatment of rare disorders of the vestibular labyrinth.
Collapse
Affiliation(s)
- Julia Dlugaiczyk
- Klinik für Ohren-, Nasen-, Hals- und Gesichtschirurgie
& Interdisziplinäres Zentrum für Schwindel und
neurologische Sehstörungen, Universitätsspital Zürich
(USZ), Universität Zürich (UZH), Zürich,
Schweiz
| |
Collapse
|
5
|
Zhang Y, Li F, Dai C, Wang W. Endolymphatic Hydrops in Patients With Intralabyrinthine Schwannomas. Front Surg 2021; 7:623078. [PMID: 33614701 PMCID: PMC7890084 DOI: 10.3389/fsurg.2020.623078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/31/2020] [Indexed: 01/20/2023] Open
Abstract
Purpose: The presence of endolymphatic hydrops (EH) in patients with intralabyrinthine schwannomas (ILSs) is poorly understood. This study aims to determine whether there is a correlation between endolymphatic hydrops and clinical presentations of ILS. Methods: Data from nine patients with ILSs were retrospectively reviewed between 2007 and 2020. Temporal bone MRI with intratympanic or intravenous injection of gadolinium was applied to detect ILSs and EH. Results: 3D real inversion recovery (IR) sequence MRI of the temporal bone confirmed ipsilateral EH in four patients (4/6). All four patients with EH on MRI presented with vertigo similar to Meniere's disease. Among these patients with EH, one patient with EH in the cochlea showed moderate sensorineural hearing loss, while three patients with EH in both the vestibule and cochlea showed profound hearing loss. MRI demonstrated a transmacular tumor (TMA) in one patient, intravestibular (IV) in four patients, and vestibulocochlear (VC) in four patients. Two IV cases showed moderated hearing loss, while the TMA and VC cases showed profound hearing loss. Transotic resection of the tumor was applied in five patients; translabyrinthine resection was applied in one patient; two patients were under observation; and one patient was given intratympanic injection of gentamicin (ITG). During follow-up, all of the treated patients reported relief of vertigo, and postoperative MRI was performed in two patients, which showed no tumor recurrence. The two patients under observation showed no deterioration of hearing loss or vertigo. One patient was lost to follow-up. Conclusion: EH concurrent with ILSs has been underestimated previously. With the extensive application of temporal bone MRI paradigms, such as 3D-real IR sequence MRI, more cases of potential EH in patients with ILS will be identified. The severity of hearing loss may be associated with the location of the tumor and the degree of EH.
Collapse
Affiliation(s)
- Yibo Zhang
- Department of Otology and Skull Base Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.,Key Laboratory of Hearing Medicine, Ministry of Health, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Feitian Li
- Department of Otology and Skull Base Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.,Key Laboratory of Hearing Medicine, Ministry of Health, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Chunfu Dai
- Department of Otology and Skull Base Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.,Key Laboratory of Hearing Medicine, Ministry of Health, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Wuqing Wang
- Department of Otology and Skull Base Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.,Key Laboratory of Hearing Medicine, Ministry of Health, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| |
Collapse
|
6
|
Guo F, Zhang L, Mo L. Long experience for the diagnosis and treatment of sporadic endolymphatic sac tumor in a single center. Clin Neurol Neurosurg 2020; 197:106078. [DOI: 10.1016/j.clineuro.2020.106078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/15/2020] [Accepted: 07/06/2020] [Indexed: 11/27/2022]
|
7
|
State of the Art Imaging in Menière’s Disease. Tips and Tricks for Protocol and Interpretation. CURRENT RADIOLOGY REPORTS 2020. [DOI: 10.1007/s40134-020-00365-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Abstract
Purpose of Review
Menière’s disease (MD) is a burdensome and not well understood inner ear disorder that has received increasing attention of scientists over the past decade. Until 2007, a certain diagnosis of endolymphatic hydrops (EH) required post-mortem histology. Today, dedicated high-resolution magnetic resonance imaging (MRI) protocols enable detection of disease-related changes in the membranous labyrinth in vivo. In this review, we summarize the current status of MR imaging for MD.
Recent Findings
The mainstays of hydrops imaging are inversion recovery sequences using delayed acquisition after intravenous or intratympanic contrast administration. Based on these techniques, several methods have been developed to detect and classify EH. In addition, novel imaging features of MD, such as blood-labyrinth barrier impairment, have recently been observed.
Summary
Delayed contrast enhanced MRI has emerged as a reliable technique to demonstrate EH in vivo, with promising application in the diagnosis and follow-up of MD patients. Therefore, familiarity with current techniques and diagnostic imaging criteria is increasingly important.
Collapse
|
8
|
Sykopetrites V, Piras G, Giannuzzi A, Caruso A, Taibah A, Sanna M. The endolymphatic sac tumor: challenges in the eradication of a localized disease. Eur Arch Otorhinolaryngol 2020; 278:2297-2304. [PMID: 32889625 DOI: 10.1007/s00405-020-06323-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/24/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Identify the critical points that lead to recurrences and lack of radicality in endolymphatic sac tumors (ELSTs). STUDY DESIGN Retrospective case study and review of the literature. SETTING Tertiary referral center. PATIENTS Thirteen cases of ELST were included in the study and their preoperative, intraoperative and postoperative data were analyzed and compared to a review of the literature. INTERVENTION(S) Therapeutical. MAIN OUTCOME MEASURE(S) Prevalence of recurrent and residual tumors, comparison to the literature and analysis of ELST characteristics. RESULTS Diagnosis was made 26 ± 17 months after the onset of symptomatology, and an ELST was preoperatively suspected in only six cases. At the time of surgery, 10 patients suffered from hearing loss. Preoperative symptoms or audiometry could not predict labyrinth infiltration, although speech discrimination scores were significantly associated with labyrinth infiltration (p = 0.0413). The labyrinth was infiltrated in 8 cases (57.1%), and in 7 cases (46.7%) the tumor eroded the carotid canal, whereas 6 cases (40%) presented an intradural extension. A gross total resection was achieved in 11 cases. There were two residual tumors, one of which because of profuse bleeding, and one recurrence (23.1%). A mean of 22.8% of recurrent or residual tumors are described in the literature based on 242 published cases, in more than half of the cases as a consequence of subtotal tumor resection (STR). CONCLUSIONS Recurrence derives mostly from the difficulty to identify the extension of the tumor due to the extensive bone infiltration. Accurate diagnosis and correct preoperative planning, with embolization when possible, will facilitate surgery and avoid STR due to intraoperative bleeding. Long follow-ups are important in order to avoid insidious recurrences.
Collapse
Affiliation(s)
- Vittoria Sykopetrites
- Department of Otology and Skull Base Surgery Gruppo, Otologico and Mario Sanna Foundation, Casa Di Cura "Piacenza" S.P.A, Piacenza-RomePiacenza, Italy.
| | - Gianluca Piras
- Department of Otology and Skull Base Surgery Gruppo, Otologico and Mario Sanna Foundation, Casa Di Cura "Piacenza" S.P.A, Piacenza-RomePiacenza, Italy
| | - Annalisa Giannuzzi
- Department of Otology and Skull Base Surgery Gruppo, Otologico and Mario Sanna Foundation, Casa Di Cura "Piacenza" S.P.A, Piacenza-RomePiacenza, Italy
| | - Antonio Caruso
- Department of Otology and Skull Base Surgery Gruppo, Otologico and Mario Sanna Foundation, Casa Di Cura "Piacenza" S.P.A, Piacenza-RomePiacenza, Italy
| | - Abdelkader Taibah
- Department of Otology and Skull Base Surgery Gruppo, Otologico and Mario Sanna Foundation, Casa Di Cura "Piacenza" S.P.A, Piacenza-RomePiacenza, Italy
| | - Mario Sanna
- Department of Otology and Skull Base Surgery Gruppo, Otologico and Mario Sanna Foundation, Casa Di Cura "Piacenza" S.P.A, Piacenza-RomePiacenza, Italy
| |
Collapse
|
9
|
Grading system and surgical approaches for endolymphatic sac tumors. Eur Arch Otorhinolaryngol 2020; 278:1345-1353. [PMID: 32632613 DOI: 10.1007/s00405-020-06185-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/02/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE Endolymphatic sac tumors (ELSTs) are rare, low-grade adenocarcinomas arising from the endolymphatic sac. This study aims to present a novel grading system for ELSTs to determine the optimal management strategy. METHODS We performed a retrospective analysis of 16 patients with 17 ELSTs. The tumor location and involved adjacent neurovascular structures on CT and MRI were selected to establish the grading system. RESULTS Based on the novel grading system, grade III a tumors were most common (7/17), followed by grade I (4/17), grade II (3/17), and grade III b (3/17) tumors. Eight advanced ELSTs (grade III a and III b) received an infra-temporal fossa approach, while the other 6 early stage ELSTs (grade I and II) underwent either a retrolabyrinthine approach with posterior petrosectomy or a translabyrinthine approach combined with subtotal temporal bone resection. Hearing preservation was achieved in 2 grade I patients. Postoperative facial nerve function was HB II in 1 grade III a patient who underwent anterior facial nerve transposition and was HB III in 4 advanced patients who received facial nerve grafts with the great auricular nerve or facial-hypoglossal nerve anastomosis. The mean follow-up time was 35.1 months. Two grade III patients and 1 grade II patient had tumor recurrence during follow-up, among whom 1 grade III b patient had two cases of recurrence. CONCLUSION A correct initial diagnosis was established in all patients after meticulous imaging studies. Surgical resection is still the first choice to manage patients with ELSTs. The novel grading system enables surgeons to select tailored surgical approaches. Long-term follow-up is necessary following surgical intervention.
Collapse
|
10
|
Mendenhall WM, Suárez C, Skálová A, Strojan P, Triantafyllou A, Devaney KO, Williams MD, Rinaldo A, Ferlito A. Current Treatment of Endolymphatic Sac Tumor of the Temporal Bone. Adv Ther 2018; 35:887-898. [PMID: 29923043 PMCID: PMC11343903 DOI: 10.1007/s12325-018-0730-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Indexed: 01/10/2023]
Abstract
An endolymphatic sac tumor (ELST) is a rare, indolent but locally aggressive tumor arising in the posterior petrous ridge. Patients present with sensorineural hearing loss and tinnitus. As the tumor progresses, patients may experience vertigo, ataxia, facial nerve paresis, pain and otorrhea. Most patients present in their 4th or 5th decade with a wide age range. Patients with von Hippel-Lindau disease have an increased likelihood of developing ELST. Histologically, ELST is a low-grade adenocarcinoma. As it progresses, it destroys bone and extends into adjacent tissues. The likelihood of regional or distant metastases is remote. The optimal treatment is resection with negative margins. Patients with positive margins, gross residual disease, or unresectable tumor are treated with radiotherapy or radiosurgery. Late recurrences are common, so long follow-up is necessary to assess efficacy. The likelihood of cure depends on tumor extent and is probably in the range of 50-75%.
Collapse
Affiliation(s)
- William M Mendenhall
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL, USA.
| | - Carlos Suárez
- Instituto de Investigacion Sanitaria del Principado de Asturias and CIBERONC, ISCIII, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, Oviedo, Spain
| | - Alena Skálová
- Department of Pathology, Faculty of Medicine in Plzen, Charles University in Prague, Plzeň, Czech Republic
| | - Primož Strojan
- Department of Radiation Oncology, Institute of Oncology, Ljubljana, Slovenia
| | - Asterios Triantafyllou
- Department of Pathology, Liverpool Clinical Laboratories, University of Liverpool, Liverpool, UK
| | | | - Michelle D Williams
- Department of Pathology, MD Anderson Cancer Center, University of Texas, Houston, TX, USA
| | | | - Alfio Ferlito
- Coordinator of the International Head and Neck Scientific Group, Padua, Italy
| |
Collapse
|
11
|
Schunemann V, Huntoon K, Lonser RR. Personalized Medicine for Nervous System Manifestations of von Hippel-Lindau Disease. Front Surg 2016; 3:39. [PMID: 27446927 PMCID: PMC4928600 DOI: 10.3389/fsurg.2016.00039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 06/15/2016] [Indexed: 01/13/2023] Open
Abstract
von Hippel–Lindau disease (VHL) is a familial neoplasia syndrome associated with multisystem tumor development. Depending on tumor type and location, current treatments for VHL-associated tumors can include a combination of chemotherapy, radiation therapy, and/or surgery. Central nervous system (CNS) manifestations of VHL include craniospinal hemangioblastomas and endolymphatic sac tumors (ELSTs). While the first-line treatment for both types of VHL-associated CNS tumors is surgery, the indications for treatment are patient specific and different for each tumor type. Although early sign/symptom formation is the primary indication for resection of craniospinal hemangioblastomas, radiographic discovery (asymptomatic and symptomatic) of ELSTs can be an indication for resection of ELSTs in VHL patients. Recently, research has revealed that specific VHL germline mutations may permit targeted medical treatments of not only CNS manifestations of VHL-associated tumors but also visceral tumors. Specifically, missense mutations can result in the translation of functional VHL protein (pVHL) that is rapidly degraded resulting in functional loss of the pVHL, and inhibitors of pVHL degradation may slow protein degradation and restore pVHL function. Emerging research will investigate the safety and practicality of using potential targeted therapies.
Collapse
Affiliation(s)
- Victoria Schunemann
- Department of Neurological Surgery, Ohio State University Wexner Medical Center , Columbus, OH , USA
| | - Kristin Huntoon
- Department of Neurological Surgery, Ohio State University Wexner Medical Center , Columbus, OH , USA
| | - Russell R Lonser
- Department of Neurological Surgery, Ohio State University Wexner Medical Center , Columbus, OH , USA
| |
Collapse
|
12
|
An endolymphatic sac tumor with imaging features of aneurysmal bone cysts: differential diagnostic considerations. Childs Nerv Syst 2014; 30:1583-8. [PMID: 24881035 DOI: 10.1007/s00381-014-2453-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 05/23/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Endolymphatic sac tumors (ELSTs) are rare, slow-growing tumors of the petrous bone. Despite the typical localisation, their radiological diagnosis can be challenging due to the variety of other tumors potentially showing similar features. CASE REPORT We present a 16-year-old child with progressive hearing loss, vertigo, and tinnitus who had a large petrous bone lesion showing imaging features of both ELSTs and aneurysmal bone cysts (ABCs). The patient underwent preoperative embolization of the tumor-supplying vessels and subsequently a subtotal resection. Histological examination revealed an ELST. CONCLUSION Despite the rarity of petrous bone ABCs, they should be considered as a differential diagnostic alternative of ELSTs due to their similar imaging appearance.
Collapse
|
13
|
Binderup MLM, Gimsing S, Kosteljanetz M, Thomsen C, Bisgaard ML. von Hippel-Lindau disease: Deafness due to a non-MRI-visible endolymphatic sac tumor despite targeted screening. Int J Audiol 2013; 52:771-5. [DOI: 10.3109/14992027.2013.824117] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|