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Boudoux O, Bailleul H, Marty PA, Miguel A, Quintyn JC, Thariat J. Prospective assessment of peripapillary microvasculature using optical coherence tomography angiography in para-optic intracranial and sinonasal tumors treated with proton therapy. J Fr Ophtalmol 2024; 47:104239. [PMID: 38964279 DOI: 10.1016/j.jfo.2024.104239] [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] [Received: 11/20/2023] [Revised: 01/27/2024] [Accepted: 03/08/2024] [Indexed: 07/06/2024]
Abstract
PURPOSE Radiation-induced optic neuropathy (RION) is rare but may lead to blindness. The mechanisms by which this occurs include endothelial and neuronal damage, but RION has been assessed very little in the case of extraocular tumors treated with high-energy proton therapy, the use of which is expanding worldwide. We assessed peripapillary microvascular changes by optical coherence tomography angiography (OCT-A) in patients undergoing high-energy proton therapy for para-optic intracranial or head and neck tumors. MATERIALS AND METHODS In this prospective institutional review board approved study, patients receiving>40Gy_RBE maximal PBT dose to their optic nerve between 2018 and 2020 underwent quantitative OCT-A analyses. ImageJ software was used to assess changes in the peripapillary superficial vascular complex (SVC) using vascular area density (VAD), vessel length density (VLD) and fractal dimension (FDsk). Uni- and multivariate analyses were performed. RESULTS Of 47 patients (78 eyes) with 29±6 months of follow-up (range 18-42), 29 patients (61.7%) had previously undergone surgery and 18 (32.1%) had microvascular abnormalities prior to proton therapy. Total radiotherapy dose was the most relevant factor in decreased peripapillary microvasculature. Duration of follow-up was associated with lower VAD (P=0.005) and mean retinal nerve fiber layer (RNFLm) thickness also decreased. There was no significant correlation between OCT-A changes and mean visual defect. CONCLUSION Peripapillary microvasculature changes may occur from tumor compression or surgery and proton therapy for extraocular tumors. OCT-A may provide quantitative and mechanistic insights into RION before the occurrence of clinical symptoms.
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Affiliation(s)
- O Boudoux
- Ophthalmology Department, University Hospital of Caen, Caen, France.
| | - H Bailleul
- Ophthalmology Department, Hôpital Privé de la Baie, Avranches, France
| | - P-A Marty
- Centre ophtalmologique du pays des Olonnes, Olonne-sur-Mer, France
| | - A Miguel
- Ophthalmology Department, Hôpital Privé de la Baie, Avranches, France
| | - J-C Quintyn
- Ophthalmology Department, University Hospital of Caen, Caen, France
| | - J Thariat
- Radiation Oncology Department, Centre François-Baclesse, Caen, France
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Punukollu A, Franklin B, Pineda FG, Wouters K, Palavani L, Pan DHC, Chen HC. Gamma knife radiosurgery for orbital cavernous hemangioma: a systematic review and single-arm meta-analysis. J Neurooncol 2024; 169:221-231. [PMID: 39075327 DOI: 10.1007/s11060-024-04723-1] [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] [Received: 04/28/2024] [Accepted: 05/24/2024] [Indexed: 07/31/2024]
Abstract
PURPOSE Gamma knife radiosurgery (GKRS) for orbital cavernous hemangioma (OCH) has emerged as a promising method due to its significant clinical improvement and low incidence of complications. This study aimed to evaluate the safety and efficacy of GKRS for the treatment of OCH. METHODS In accordance with the PRISMA framework, we searched PubMed, Cochrane Central, and Embase for studies reporting outcomes of GKRS for OCH. Studies reporting complications, visual improvement, proptosis, tumor reduction rate, and tumor progression rate for OCH following GKRS were included. RESULTS Six studies, out of 1856 search results, with 100 patients were included. Among them, only 5 minor complications were related to GKRS, including 3 with orbital pain and 2 with periorbital chemosis. Thus, the complication rate was 13% (95% CI, 7-25%). Visual acuity and visual field improvement rates after GKRS were 80% (95% CI, 63-96%) and 71% (95% CI, 47-95%) respectively. Proptosis improved in 94% of cases (95% CI, 83-100%). The tumor reduction rate was 77% after GKRS (95% CI, 69-85%). CONCLUSION GKRS for OCH appears to be a safe technique, as evidenced by the rate of clinical improvement and radiological improvement. However, studies are limited by an absence of a control group. Additional studies are needed to evaluate the relative efficacy of GKRS as compared with alternative surgical modalities for OCH.
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Affiliation(s)
| | | | - Felipe Gutierrez Pineda
- Department of Neurosurgery, School of Medicine, University of Antioquia, Medellin, Colombia
- Department of Neurosurgery, Colombian Neurological Institute, Medellin, Colombia
| | - Kim Wouters
- Deparment of psychologie, Open universiteit, Heerlen, Netherlands
| | - Lucca Palavani
- Faculty of Medicine, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - David Hung-Chi Pan
- Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
- TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan
| | - Hsien-Chung Chen
- Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.
- TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan.
- Ph.D Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan.
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Azemar N, Fontbonne C, Claude Quintyn J, Lebertz D, Marc Fontbonne J, Thariat J. Assessment of gaze direction during head and neck irradiation and dosimetric impact on the retina, macula and papilla in a cohort of 240 patients with paraoptic tumors. Radiother Oncol 2024; 197:110342. [PMID: 38782302 DOI: 10.1016/j.radonc.2024.110342] [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] [Received: 01/13/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
In a prospective cohort of 240 paraoptic tumors patients treated with protons, there was 10° inter-individual gaze angle variability (up to 30°). In a random 21-patient subset with initial CTs versus and adaptive CTs, 6 (28.57 %) patients had at least twice a 10°-difference in their gaze angle, with > 5 Gy difference on the retina/macula or papilla in 2/21 (9.52 %) and 1/21 (4.76 %) based on cumulative dose from rescans, respectively.
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Affiliation(s)
- Nathan Azemar
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, Caen F-14000, France.
| | - Cathy Fontbonne
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, Caen F-14000, France
| | | | - Dorothee Lebertz
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, Caen F-14000, France; Department of Radiation Therapy, Centre François Baclesse, Caen, France
| | - Jean Marc Fontbonne
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, Caen F-14000, France
| | - Juliette Thariat
- Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, Caen F-14000, France; Department of Radiation Therapy, Centre François Baclesse, Caen, France.
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AlAmeer AM, Davis JB, Carey AR, Henderson AD. Outcomes of systemic bevacizumab in radiation-induced optic neuropathy, case series. J Neurooncol 2023:10.1007/s11060-023-04346-y. [PMID: 37227651 DOI: 10.1007/s11060-023-04346-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 05/15/2023] [Indexed: 05/26/2023]
Abstract
PURPOSE Optic neuropathy is a rare, delayed complication after radiation with no universally accepted treatment modality. We report the outcomes of 6 patients with radiation-induced optic neuropathy (RION) who were treated with systemic bevacizumab. METHODS This is a retrospective series of 6 cases of RION, treated with intravenous (IV) bevacizumab. "Improved" or "worse" visual outcomes were defined as a change in best corrected visual acuity of ≥ 3 Snellen lines. Otherwise, the visual outcome was noted as "stable". RESULTS In our series, RION was diagnosed 8 to 36 months after radiotherapy. IV bevacizumab was initiated as treatment within 6 weeks of the onset of visual symptoms in 3 cases and after 3 months in the other cases. Although no improvement in visual function was observed, stabilization of vision was noted in 4 of the 6 cases. In the other 2 cases, the level of vision declined from counting fingers to no light perception. In 2 cases, bevacizumab treatment was discontinued prior to completion of the planned course due to renal stone formation or worsening of renal disease. One patient developed ischemic stroke 4 months after bevacizumab completion. CONCLUSION Systemic bevacizumab may stabilize vision in some patients with RION, though the limitations of our study do not allow us to draw this conclusion definitively. Therefore, the risks and potential benefits of using IV bevacizumab should be considered in each individual case.
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Affiliation(s)
- Ahmad Mohammed AlAmeer
- Division of Neuro-Ophthalmology, Wilmer Eye Institute, Johns Hopkins Medicine, Baltimore, MD, USA.
- Division of Ophthalmology, King Abdullah bin Abdulaziz University Hospital, Riyadh, Saudi Arabia.
| | - James Brian Davis
- Division of Neuro-Ophthalmology, Wilmer Eye Institute, Johns Hopkins Medicine, Baltimore, MD, USA
| | - Andrew Rising Carey
- Division of Neuro-Ophthalmology, Wilmer Eye Institute, Johns Hopkins Medicine, Baltimore, MD, USA
| | - Amanda Dean Henderson
- Division of Neuro-Ophthalmology, Wilmer Eye Institute, Johns Hopkins Medicine, Baltimore, MD, USA
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Kamogawa M, Shuto T, Matsunaga S. Effects of two different radiotherapies for craniopharyngiomas using stereotactic radiosurgery/ stereotactic radiotherapy or fractionated stereotactic radiotherapy. Surg Neurol Int 2022; 13:563. [PMID: 36600746 PMCID: PMC9805634 DOI: 10.25259/sni_802_2022] [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: 08/31/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022] Open
Abstract
Background Numerous studies have reported about good tumor control with both stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (FSRT) for residual and recurrent craniopharyngiomas, but no studies have reported on the appropriate use of different types of radiation modalities. This study aimed to report the outcomes of SRS/stereotactic radiotherapy (SRT) or FSRT and compare tumor control in a single center. Methods From 2014 when TrueBeamTM STx with Novalis was introduced in our hospital to 2021, 21 patients underwent SRS/SRT or FSRT with gamma knife surgery (GKS) and Novalis. We have selected the radiation modalities considering mainly the distance of the optic nerve and chiasm. Imaging and clinical follow-up data were sent and reviewed. Results The mean age was 52 years and there were 11 men. Of the 21 total patients, three experienced SRS (GKS, 50% isodose 12-15 Gy), five underwent SRT (GKS or Novalis, 19.5-24 Gy 3 fractions), and 13 patients underwent FSRT (Novalis, 54 Gy 30 fractions). The median follow-up was 32.6 (range 17-44) months after SRS/SRT and 34.0 (range 4-61) months after FSRT. In the SRS/SRT group, the mean tumor volume decreased from 1.103 to 0.131 cm3 (P < 0.01), and in the FSRT group, from 3.015 to 1.012 cm3 (P < 0.01). No radiation-induced optic neuropathy and other acute toxicity occurred. Conclusion Craniopharyngioma can be expected to have very good tumor control by selecting SRS/SRT or FSRT depending on the distance between the optic nerve and the tumor.
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Affiliation(s)
- Misaki Kamogawa
- Corresponding author: Misaki Kamogawa, Department of Neurosurgery, Yokohama Rosai Hospital, Yokohama, Japan.
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Klassen AM, Zimbelmann M, Lüken S, Cremers F, Rades D, Chronopoulos A, Rommel F, Ranjbar M, Grisanti S, Kakkassery V. [Clinical aspects and care of radiogenic treatment side effects on the eye]. DIE OPHTHALMOLOGIE 2022; 119:1085-1096. [PMID: 36175772 DOI: 10.1007/s00347-022-01730-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/25/2022] [Indexed: 06/16/2023]
Abstract
Malignant tumors of the eye can be successfully treated with radiotherapy, which, however, can lead to radiogenic side effects in the surrounding healthy tissues. A distinction can be made between two forms of irradiation, external radiotherapy (teletherapy) and brachytherapy with a radiation source close to the tumor. The radiation dose is important for the occurrence of side effects. Acute damage usually results from inflammatory processes initiated at the cellular level. In contrast, late side effects are rather due to the reaction of the tissue with repair and remodeling processes . Acute side effects often resolve completely, especially under corresponding treatment, whereas late side effects tend to be irreversible. The aim of this article is to present risk factors as well as the clinical signs of periocular and ocular radiogenic side effects for the relevant tissue structures of the eye in a narrative review to facilitate ophthalmologic follow-up and, if necessary, treatment measures for these patients during everyday practice.
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Affiliation(s)
- Andrea M Klassen
- Klinik für Augenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland.
| | - Michael Zimbelmann
- Klinik für Augenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland
| | - Sabine Lüken
- Klinik für Augenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland
| | - Florian Cremers
- Klinik für Strahlentherapie, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Deutschland
| | - Dirk Rades
- Klinik für Strahlentherapie, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Deutschland
| | - Argyrios Chronopoulos
- Augenklinik, Klinikum Ludwigshafen, Akademisches Lehrkrankenhaus der Johannes-Gutenberg-Universität Mainz und der Medizinischen Fakultät Mannheim der Universität Heidelberg, Ludwigshafen, Deutschland
| | - Felix Rommel
- Klinik für Augenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland
| | - Mahdy Ranjbar
- Klinik für Augenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland
| | - Salvatore Grisanti
- Klinik für Augenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland
| | - Vinodh Kakkassery
- Klinik für Augenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland
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Carsuzaa F, Verillaud B, Marcy PY, Herman P, Dufour X, Favier V, Thariat J. Interdisciplinary challenges and aims of flap or graft reconstruction surgery of sinonasal cancers: What radiologists and radiation oncologists need to know. Front Oncol 2022; 12:1013801. [PMID: 36203460 PMCID: PMC9530815 DOI: 10.3389/fonc.2022.1013801] [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: 08/07/2022] [Accepted: 08/25/2022] [Indexed: 11/13/2022] Open
Abstract
In sinonasal cancer surgery, a fundamental challenge is to understand the postoperative imaging changes after reconstruction. Misinterpretation of post-operative imaging may lead to a misdiagnosis of tumor recurrence. Because radiotherapy planning is based on imaging, there are many gaps in knowledge to be filled in the interpretation of postoperative imaging to properly define radiotherapy tumor volumes in the presence of flaps. On the other hand, radiotherapy may be responsible for tissue fibrosis or atrophy, the anatomy of the reconstructed region and the functional outcomes may change after radiotherapy compared to surgery alone. This narrative review illustrates the interdisciplinary aims and challenges of sinonasal reconstructive surgery using flaps or grafts. It is particularly relevant to radiologists and radiation oncologists, at a time when intensity modulated radiotherapy and proton therapy have the potential to further contribute to reduction of morbidity.
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Affiliation(s)
- Florent Carsuzaa
- Department of Oto-Rhino-Laryngology-Head and Neck Surgery, University Hospital of Poitiers, Poitiers, France
- Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC), University of Poitiers, Poitiers, France
- *Correspondence: Florent Carsuzaa,
| | - Benjamin Verillaud
- Department of Oto-Rhino-Laryngology-Head and Neck Surgery, Hôpital Lariboisière, Paris, France
| | - Pierre-Yves Marcy
- Department of Radiology, Clinique du Cap d’Or, La Seyne-sur-mer, France
| | - Philippe Herman
- Department of Oto-Rhino-Laryngology-Head and Neck Surgery, Hôpital Lariboisière, Paris, France
| | - Xavier Dufour
- Department of Oto-Rhino-Laryngology-Head and Neck Surgery, University Hospital of Poitiers, Poitiers, France
- Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC), University of Poitiers, Poitiers, France
| | - Valentin Favier
- Department of Oto-Rhino-Laryngology-Head and Neck Surgery, Hôpital Gui de Chauliac, University Hospital of Montpellier, Montpellier, France
| | - Juliette Thariat
- Department of Radiation Oncology, Centre François Baclesse, Caen, France
- Laboratoire de Physique Corpusculaire UMR6534 IN2P3 ENSICAEN CNRS, Normandy University, Caen, France
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Gilli C, Thariat J, Chacun S, Nguyen AM, Loria O, Kodjikian L, Mathis T. [Radiation-induced retinopathy: actual knowledge and new concepts]. Cancer Radiother 2022; 26:1090-1099. [PMID: 35879145 DOI: 10.1016/j.canrad.2022.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/06/2022] [Accepted: 04/13/2022] [Indexed: 10/16/2022]
Abstract
Radiation retinopathy is an occlusive vascular pathology following radiotherapy, generally targeted on the eye or peri-ocular structures. Despite increasingly precise techniques (stereotactic radiosurgery, proton therapy, etc.), the inclusion of the retina in the radiation field is sometimes unavoidable. This can lead to a severe pathology, which can ultimately cause blindness or even the anatomical loss of the eye when neovascular glaucoma occurs, due to the abnormal proliferation of neovessels. Radiation retinopathy have been described for more than a century, but it has recently seen great advances in both diagnosis and treatment. The advances of efficient and less invasive examinations in our clinical practice, such as OCT-angiography, allows for easier screening and diagnosis at earlier stages. Thus a new approach to the pathology is necessary, first of all through new definitions and classifications including previously undetected minimal forms. Furthermore, the recent appearance of intravitreal therapies by injection of anti-VEGF or dexamethasone implants has drastically changed the visual prognosis of these patients, who were previously treated only by retinal photocoagulation of the ischaemic areas. Recent studies have even shown the effectiveness of these new molecules in preventing the development of radiation retinopathy. This review of the literature provides an update on this disease and details how these recent diagnostic and therapeutic developments may play a role in the management of this complication.
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Affiliation(s)
- C Gilli
- Service d'Ophtalmologie, hôpital universitaire de la Croix-Rousse, hospices Civils de Lyon, 69317 Lyon, France
| | - J Thariat
- Laboratoire de physique Corpusculaire / IN2P3-CNRS UMR 6534 - ARCHADE, Unicaen - université de Normandie, 14000 Caen, France
| | - S Chacun
- Service d'Ophtalmologie, hôpital universitaire de la Croix-Rousse, hospices Civils de Lyon, 69317 Lyon, France
| | - A M Nguyen
- Service d'Ophtalmologie, hôpital universitaire de la Croix-Rousse, hospices Civils de Lyon, 69317 Lyon, France
| | - O Loria
- Service d'Ophtalmologie, hôpital universitaire de la Croix-Rousse, hospices Civils de Lyon, 69317 Lyon, France; UMR5510 MATEIS, CNRS, INSA Lyon, université Lyon 1, 69100 Villeurbanne, France
| | - L Kodjikian
- Service d'Ophtalmologie, hôpital universitaire de la Croix-Rousse, hospices Civils de Lyon, 69317 Lyon, France; UMR5510 MATEIS, CNRS, INSA Lyon, université Lyon 1, 69100 Villeurbanne, France
| | - T Mathis
- Service d'Ophtalmologie, hôpital universitaire de la Croix-Rousse, hospices Civils de Lyon, 69317 Lyon, France; UMR5510 MATEIS, CNRS, INSA Lyon, université Lyon 1, 69100 Villeurbanne, France.
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Lara-Velazquez M, Mehkri Y, Panther E, Hernandez J, Rao D, Fiester P, Makary R, Rutenberg M, Tavanaiepour D, Rahmathulla G. Current Advances in the Management of Adult Craniopharyngiomas. Curr Oncol 2022; 29:1645-1671. [PMID: 35323338 PMCID: PMC8946973 DOI: 10.3390/curroncol29030138] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/27/2022] [Accepted: 03/01/2022] [Indexed: 12/23/2022] Open
Abstract
Craniopharyngiomas (CPs) are slow growing, histologically benign intracranial tumors located in the sellar–suprasellar region. Although known to have low mortality, their location and relationship to the adjacent neural structures results in patients having significant neurologic, endocrine, and visual comorbidities. The invasive nature of this tumor makes complete resection a challenge and contributes to its recurrence. Additionally, these tumors are bimodally distributed, being treated with surgery, and are followed by other adjuncts, such as focused radiation therapy, e.g., Gamma knife. Advances in surgical techniques, imaging tools, and instrumentations have resulted in the evolution of surgery using endoscopic techniques, with residual components being treated by radiotherapy to target the residual tumor. Advances in molecular biology have elucidated the main pathways involved in tumor development and recurrence, but presently, no other treatments are offered to patients, besides surgery, radiation, and endocrine management, as the disease and tumor evolve. We review the contemporary management of these tumors, from the evolution of surgical treatments, utilizing standard open microscopic approaches to the more recent endoscopic surgery, and discuss the current recommendations for care of these patients. We discuss the developments in radiation therapy, such as radiosurgery, being used as treatment strategies for craniopharyngioma, highlighting their beneficial effects on tumor resections while decreasing the rates of adverse outcomes. We also outline the recent chemotherapy modalities, which help control tumor growth, and the immune landscape on craniopharyngiomas that allow the development of novel immunotherapies.
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Affiliation(s)
- Montserrat Lara-Velazquez
- Department of Neurosurgery, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA; (M.L.-V.); (Y.M.); (E.P.); (J.H.); (D.T.)
| | - Yusuf Mehkri
- Department of Neurosurgery, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA; (M.L.-V.); (Y.M.); (E.P.); (J.H.); (D.T.)
| | - Eric Panther
- Department of Neurosurgery, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA; (M.L.-V.); (Y.M.); (E.P.); (J.H.); (D.T.)
| | - Jairo Hernandez
- Department of Neurosurgery, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA; (M.L.-V.); (Y.M.); (E.P.); (J.H.); (D.T.)
| | - Dinesh Rao
- Department of Neuroradiology, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA; (D.R.); (P.F.)
| | - Peter Fiester
- Department of Neuroradiology, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA; (D.R.); (P.F.)
| | - Raafat Makary
- Department of Pathology, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA;
| | - Michael Rutenberg
- Department of Radiation Oncology, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA;
| | - Daryoush Tavanaiepour
- Department of Neurosurgery, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA; (M.L.-V.); (Y.M.); (E.P.); (J.H.); (D.T.)
| | - Gazanfar Rahmathulla
- Department of Neurosurgery, College of Medicine, University of Florida, 653 8th St W., Jacksonville, FL 32209, USA; (M.L.-V.); (Y.M.); (E.P.); (J.H.); (D.T.)
- Correspondence: ; Tel.: +1-904-244-1418; Fax: +1-888-939-4093
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Morandi EM, Rauchenwald T, Puelzl P, Zelger BW, Zelger BG, Henninger B, Pierer G, Wolfram D. Hide-and-seek: Neurotropic squamous cell carcinoma of the periorbital region - a series of five cases and review of the literature. J Dtsch Dermatol Ges 2021; 19:1571-1580. [PMID: 34811913 PMCID: PMC9299592 DOI: 10.1111/ddg.14582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 06/07/2021] [Indexed: 12/11/2022]
Abstract
Squamous cell carcinoma is the second most common malignancy of the skin after basal cell carcinoma and mainly found in sun‐exposed areas such as the face. This mostly locally destructive malignancy may show invasive growth and insidious mechanisms of dissemination such as perineural invasion. Periorbital squamous cell carcinoma is associated with perineural invasion in up to 14 % of cases. Specifically in this region, the proximity to cranial nerves and therefore the associated risk of progression to the central nervous system are associated with poor prognosis. The clinically concealed character of this entity often leads to a delay in diagnosis and consequently makes complete resection and reconstruction demanding. Careful clinical evaluation often hints at perineural invasion before obtaining histology. Aside from presenting five challenging cases, this work analyzes risk factors, clinical as well as histological features, and treatment options for periorbital squamous cell carcinoma with perineural invasion.
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Affiliation(s)
- Evi M Morandi
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Tina Rauchenwald
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Petra Puelzl
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Bernhard W Zelger
- Department of Dermatology, Venerology and Allergology, Medical University of Innsbruck, Innsbruck, Austria
| | - Bettina G Zelger
- Department of Pathology, Medical University of Innsbruck, Innsbruck, Austria
| | - Benjamin Henninger
- Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Gerhard Pierer
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Dolores Wolfram
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Innsbruck, Innsbruck, Austria
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Morandi EM, Rauchenwald T, Puelzl P, Zelger BW, Zelger BG, Henninger B, Pierer G, Wolfram D. Hide-and-seek: Neurotropes Plattenepithelkarzinom der periorbitalen Region - eine Fallserie und Übersichtsarbeit aktueller Literatur. J Dtsch Dermatol Ges 2021; 19:1571-1581. [PMID: 34811899 DOI: 10.1111/ddg.14582_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 06/07/2021] [Indexed: 11/30/2022]
Abstract
Das Plattenepithelkarzinom ist nach dem Basalzellkarzinom das zweithäufigste Malignom der Haut und wird vorwiegend an sonnenexponierten Stellen wie der Gesichtshaut diagnostiziert. Diese meist lokal destruktiv wachsende Malignität kann durchaus auch invasives Wachstumsverhalten, wie perineurale Ausbreitungsmechanismen, aufweisen. Das Plattenepithelkarzinom der periorbitalen Region ist in bis zu 14 % der Fälle mit perineuraler Invasion assoziiert. Vor allem in diesem Bereich birgt die anatomische Nähe zu den Hirnnerven das Risiko einer Progression Richtung zentrales Nervensystem, was mit einer schlechteren Prognose assoziiert ist. Der klinisch unauffällige Charakter dieser Entität resultiert oft in einer Verzögerung der definitiven Diagnosestellung, wodurch die vollständige Resektion und anschließende Rekonstruktion erschwert werden. Eine aufmerksame klinische Evaluierung kann bereits vor Erlangen histologischer Befunde Hinweise für ein perineurales Wachstum liefern. Neben fünf herausfordernden Fällen analysiert diese Arbeit Risikofaktoren, klinische als auch histologische Merkmale und Behandlungsoptionen des periorbitalen Plattenepithelkarzinoms mit perineuraler Invasion.
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Affiliation(s)
- Evi M Morandi
- Universitätsklinik für Plastische, Rekonstruktive und Ästhetische Chirurgie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Tina Rauchenwald
- Universitätsklinik für Plastische, Rekonstruktive und Ästhetische Chirurgie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Petra Puelzl
- Universitätsklinik für Plastische, Rekonstruktive und Ästhetische Chirurgie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Bernhard W Zelger
- Universitätsklinik für Dermatologie und Venerologie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Bettina G Zelger
- Institut für Pathologie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Benjamin Henninger
- Universitätsklinik für Radiologie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Gerhard Pierer
- Universitätsklinik für Plastische, Rekonstruktive und Ästhetische Chirurgie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Dolores Wolfram
- Universitätsklinik für Plastische, Rekonstruktive und Ästhetische Chirurgie, Medizinische Universität Innsbruck, Innsbruck, Österreich
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12
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Köthe A, Feuvret L, Weber DC, Safai S, Lomax AJ, Fattori G. Assessment of Radiation-Induced Optic Neuropathy in a Multi-Institutional Cohort of Chordoma and Chondrosarcoma Patients Treated with Proton Therapy. Cancers (Basel) 2021; 13:cancers13215327. [PMID: 34771490 PMCID: PMC8582447 DOI: 10.3390/cancers13215327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Proton therapy is an effective therapeutic option for the treatment of skull-base tumors that require high radiation doses to be controlled. On rare occasions, patients suffer from radiation-induced optic neuropathy (RION) to the detriment of their post-treatment quality-of-life. We have collected multi-institutional data of 289 skull-base patients having received high doses to the optic apparatus from proton therapy or proton–photon mixed treatments and have observed a RION incidence rate (all grades) of 4.2% (12). We have furthermore confirmed older age and hypertension as risk factors for the onset of this side effect, with tumor involvement or its proximity to the optic apparatus and repeated surgical procedures showing moderate association. Our findings were consolidated into a NTCP model that can support pre-treatment patient segmentation into risk groups and the planning of necessary treatment countermeasures. However, further data and validation are necessary to confirm validity of the model. Abstract Radiation-induced optic neuropathy (RION) is a rare side effect following radiation therapy involving the optic structures whose onset is, due to the low amount of available data, challenging to predict. We have analyzed a multi-institutional cohort including 289 skull-base cancer patients treated with proton therapy who all received >45 GyRBE to the optic apparatus. An overall incidence rate of 4.2% (12) was observed, with chordoma patients being at higher risk (5.8%) than chondrosarcoma patients (3.2%). Older age and arterial hypertension, tumor involvement, and repeated surgeries (>3) were found to be associated with RION. Based on bootstrapping and cross-validation, a NTCP model based on age and hypertension was determined to be the most robust, showing good classification ability (AUC-ROC 0.77) and calibration on our dataset. We suggest the application of this model with a threshold of 6% to segment patients into low and high-risk groups before treatment planning. However, further data and external validation are warranted before clinical application.
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Affiliation(s)
- Andreas Köthe
- Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland; (D.C.W.); (S.S.); (A.J.L.); (G.F.)
- Department of Physics, ETH Zürich, 8093 Zürich, Switzerland
- Correspondence:
| | - Loïc Feuvret
- Center for Proton Therapy, Institut Curie, 91400 Orsay, France;
- Department of Radiation Oncology, AP-HP, Hôpitaux Universitaires La Salpêtrière Charles Foix, Sorbonne Université, 75013 Paris, France
| | - Damien Charles Weber
- Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland; (D.C.W.); (S.S.); (A.J.L.); (G.F.)
- Department of Radiation Oncology, University Hospital Zürich, 8091 Zürich, Switzerland
- Department of Radiation Oncology, University Hospital Bern, 3010 Bern, Switzerland
| | - Sairos Safai
- Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland; (D.C.W.); (S.S.); (A.J.L.); (G.F.)
| | - Antony John Lomax
- Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland; (D.C.W.); (S.S.); (A.J.L.); (G.F.)
- Department of Physics, ETH Zürich, 8093 Zürich, Switzerland
| | - Giovanni Fattori
- Center for Proton Therapy, Paul Scherrer Institute, 5232 Villigen, Switzerland; (D.C.W.); (S.S.); (A.J.L.); (G.F.)
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13
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Vakharia K, Hasegawa H, Stafford SL, Link MJ. Salvage Radiosurgery for Optic Nerve Sheath Meningioma. Cureus 2021; 13:e16450. [PMID: 34422481 PMCID: PMC8369972 DOI: 10.7759/cureus.16450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2021] [Indexed: 11/17/2022] Open
Abstract
Optic nerve sheath meningiomas (ONSMs) are rare and benign tumors that affect the optic nerve. Although surgical decompression may be used for large tumors that cause mass effect on the surrounding structures, the mainstay of treatment is radiotherapy. We report the case of a 54-year-old female patient who presented with progressive vision loss due to a recurrent right ONSM despite fractionated radiotherapy eight years prior and the subsequent interval regression of the tumor. The optical coherence tomography at the time of recurrence revealed thinning of the right retinal nerve fiber layer. She underwent salvage stereotactic radiosurgery using a marginal dose of 15 Gy. At six months post-radiosurgery, the patient had a dramatic improvement in visual acuity and visual fields despite persistent thinning of the retinal nerve fiber layer. This case illustrates how salvage radiosurgery can be a useful treatment modality in these challenging situations. This tumor’s exophytic growth and the steep dose fall-off of Gamma Knife radiosurgery might favorably affect visual recovery. However, the outcomes of single-session radiosurgery for ONSMs should be further evaluated.
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Affiliation(s)
- Kunal Vakharia
- Department of Neurosurgery, University of South Florida, Tampa, USA.,Neurosurgery, Mayo Clinic, Rochester, USA
| | - Hirotaka Hasegawa
- Neurosurgery, Mayo Clinic, Rochester, USA.,Department of Neurosurgery, University of Tokyo, Tokyo, JPN
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14
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[Optic disc metastasis in a patient with breast cancer]. J Fr Ophtalmol 2021; 44:e267-e273. [PMID: 33581917 DOI: 10.1016/j.jfo.2020.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 09/17/2020] [Indexed: 11/20/2022]
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15
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Ferrari M, Migliorati S, Tomasoni M, Crisafulli V, Nocivelli G, Paderno A, Rampinelli V, Taboni S, Schreiber A, Mattavelli D, Lancini D, Gualtieri T, Ravanelli M, Facchetti M, Bozzola A, Ardighieri L, Maroldi R, Bossi P, Farina D, Battocchio S, Deganello A, Nicolai P. Sinonasal cancer encroaching the orbit: Ablation or preservation? Oral Oncol 2021; 114:105185. [PMID: 33517131 DOI: 10.1016/j.oraloncology.2021.105185] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/10/2020] [Accepted: 01/02/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Encroachment on the orbital cavity represents a challenge in the management of sinonasal cancer. Criteria guiding orbital preservation lack univocal consensus. Stage of orbital involvement is best assessed through magnetic resonance imaging (MRI). METHODS Patients affected by orbit-encroaching sinonasal cancer with available preoperative MRI, receiving surgery-based treatment at the University of Brescia between May 2005 and October 2018 were included. All cases were reviewed by expert radiologists and pathologists. Diagnostic performance of MRI was calculated using pathological information as reference. Survival analysis was performed. RESULTS The study included 123 patients. The orbit was abutted in 53 (43.1%) patients, whereas orbital invasion reached the periorbit in 18 (14.6%), extraconal fat and/or medial lacrimal sac in 29 (23.6%), extrinsic ocular muscles in 7 (5.7%), intraconal compartment in 4 (3.3%), and orbital apex in 12 (9.8%). Seventy-six (61.8%) patients received orbit-sparing surgery, 47 (38.2%) underwent orbital ablation (OA). Accuracy of MRI in detecting involvement by cancer was ≥80.0% for the orbital wall, extraconal fat, and muscles, and <80.0% for the periorbit and intraconal compartment. Previous surgery, neoadjuvant chemotherapy, and perineural invasion decreased MRI accuracy. Age, histology, tumor grade, pT category, N status, perineural invasion, orbital invasion stage, and need for OA were found to affect prognosis. Five-year orbital dysfunction-free survival was 92.8%. CONCLUSION Conservative management of sinonasal cancers encroaching the orbit is feasible. MRI is essential to preoperatively stage orbital invasion, yet with some limitation. Given the dismal prognosis despite aggressive surgery, neoadjuvant non-surgical therapies should be considered in patients requiring OA.
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Affiliation(s)
- Marco Ferrari
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy; Section of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, University of Padua - "Azienda Ospedaliera di Padova", Padua, Italy.
| | - Sara Migliorati
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Michele Tomasoni
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Valentina Crisafulli
- Unit of Pathology, Department of Molecular and Translational Medicine, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Giorgio Nocivelli
- Unit of Radiology, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Alberto Paderno
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Vittorio Rampinelli
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Stefano Taboni
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy; Section of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, University of Padua - "Azienda Ospedaliera di Padova", Padua, Italy
| | - Alberto Schreiber
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Davide Mattavelli
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Davide Lancini
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Tommaso Gualtieri
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Marco Ravanelli
- Unit of Radiology, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Mattia Facchetti
- Unit of Pathology, Department of Molecular and Translational Medicine, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Anna Bozzola
- Unit of Pathology, Department of Molecular and Translational Medicine, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Laura Ardighieri
- Unit of Pathology, Department of Molecular and Translational Medicine, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Roberto Maroldi
- Unit of Radiology, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Paolo Bossi
- Unit of Medical Oncology, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Davide Farina
- Unit of Radiology, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Simonetta Battocchio
- Unit of Pathology, Department of Molecular and Translational Medicine, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Alberto Deganello
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, University of Brescia - "ASST Spedali Civili di Brescia", Brescia, Italy
| | - Piero Nicolai
- Section of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, University of Padua - "Azienda Ospedaliera di Padova", Padua, Italy
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16
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Xu WL, Aikeremu D, Sun JG, Zhang YJ, Xu JB, Zhou WZ, Zhao XB, Wang H, Yuan H. Effect of intensity-modulated radiation therapy on sciatic nerve injury caused by echinococcosis. Neural Regen Res 2021; 16:580-586. [PMID: 32985491 PMCID: PMC7996033 DOI: 10.4103/1673-5374.293153] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Conventional radiotherapy has a good killing effect on femoral echinococcosis. However, the sciatic nerve around the lesion is irreversibly damaged owing to bystander effects. Although intensity-modulated radiation therapy shows great advantages for precise dose distribution into lesions, it is unknown whether intensity-modulated radiation therapy can perfectly protect the surrounding sciatic nerve on the basis of good killing of femoral echinococcosis foci. Therefore, this study comparatively analyzed differences between intensity-modulated radiation therapy and conventional radiotherapy on the basis of safety to peripheral nerves. Pure-breed Meriones meridiani with bilateral femoral echinococcosis were selected as the research object. Intensity-modulated radiation therapy was used to treat left femoral echinococcosis of Meriones meridianus, while conventional radiotherapy was used to treat right femoral echinococcosis of the same Meriones meridianus. The total radiation dose was 40 Gy. To understand whether intensity-modulated radiation therapy and conventional radiotherapy can kill femoral echinococcosis, trypan blue staining was used to detect pathological changes of bone Echinococcus granulosus and protoscolex death after radiotherapy. Additionally, enzyme histochemical staining was utilized to measure acid phosphatase activity in the protoscolex after radiotherapy. One week after radiotherapy, the overall structure of echinococcosis in bilateral femurs of Meriones meridiani treated by intensity-modulated radiation therapy disappeared. There was no significant difference in the mortality rate of protoscoleces of Echinococcus granulosus between the bilateral femurs of Meriones meridiani. Moreover, there was no significant difference in acid phosphatase activity in the protoscolex of Echinococcus granulosus between bilateral femurs. To understand the injury of sciatic nerve surrounding the foci of femoral echinococcosis caused by intensity-modulated radiation therapy and conventional radiotherapy, the ultrastructure of sciatic nerves after radiotherapy was observed by transmission electron microscopy. Additionally, apoptosis of neurons was examined using a terminal-deoxynucleotidyl transferase-mediated dUTP nick end labeling assay, and expression of Bcl-2 and Bax in sciatic nerve tissue was detected by immunohistochemical staining and western blot assay. Our results showed that most neurons in the left sciatic nerve of Meriones meridiani with echinococcosis treated by intensity-modulated radiation therapy had reversible injury, and there was no obvious apoptosis. Compared with conventional radiotherapy, the number of apoptotic cells and Bax expression in sciatic nerve treated by intensity-modulated radiation therapy were significantly decreased, while Bcl-2 expression was significantly increased. Our findings suggest that intensity-modulated radiation therapy has the same therapeutic effect on echinococcosis as conventional radiotherapy, and can reduce apoptosis of the sciatic nerve around foci caused by radiotherapy. Experiments were approved by the Animal Ethics Committee of People’s Hospital of Xinjiang Uygur Autonomous Region, China (Approval No. 20130301A41) on March 1, 2013.
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Affiliation(s)
- Wan-Long Xu
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Dilimulati Aikeremu
- Department of Orthopedics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Jun-Gang Sun
- Department of Orthopedics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Yan-Jun Zhang
- Department of Orthopedics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Jiang-Bo Xu
- Department of Orthopedics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Wen-Zheng Zhou
- Department of Orthopedics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Xi-Bin Zhao
- Department of Orthopedics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Hao Wang
- Department of Orthopedics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China
| | - Hong Yuan
- Department of Orthopedics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China
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17
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Ataídes FG, Silva SFBR, Baldin JJCMDC. Radiation-Induced Optic Neuropathy: Literature Review. Neuroophthalmology 2020; 45:172-180. [PMID: 34194124 PMCID: PMC8210865 DOI: 10.1080/01658107.2020.1817946] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/04/2020] [Accepted: 08/25/2020] [Indexed: 10/23/2022] Open
Abstract
Radiation-induced optic neuropathy (RION) is a rare disease caused by exposure of the optic nerves to radiation during radiotherapy procedures for head and neck tumours. The purpose of this study was to review and summarise the epidemiology, risk factors, clinical presentations, pathphysiology characteristics, diagnosis, and management of RION. Its occurrence is associated with cumulative doses of radiation above 50 Gy, presence of multi-morbidities and the presence of concomitant chemotherapy and radiotherapy. It manifests with acute, painless, and monocular loss of vision, and these symptoms appear late after the radiation exposure. The diagnosis of the disease occurs by exclusion and, mainly, by the clinical analysis of the case associated with the time of radiation exposure. Treatment does not seem promising and there is not an effective cure. In this review, we mainly focus on compiling existing information on the topic and providing knowledge for early diagnosis and more efficient treatment.
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Affiliation(s)
- Fabrício Gomes Ataídes
- Biological Science and Health Centre, Federal University of Western Bahia, Barreiras, Brazil
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18
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Ayoub E, Guy JB, Moulin N, Ghenassia L, Le Hello C, Bertoletti L. Radiation optic neuropathy and stroke suspicion. JOURNAL DE MEDECINE VASCULAIRE 2020; 45:232-233. [PMID: 32571566 DOI: 10.1016/j.jdmv.2020.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Elie Ayoub
- Vascular medicine and therapeutic department, CHU of Saint-Étienne, Saint-Étienne, France.
| | - Jean-Baptiste Guy
- Radiotherapy department, Loire Cancer Institute Lucien Neuwirth CHU of Saint-Étienne, Saint-Étienne, France.
| | - Nathalie Moulin
- Vascular medicine and therapeutic department, CHU of Saint-Étienne, Saint-Étienne, France.
| | - Léa Ghenassia
- Vascular medicine and therapeutic department, CHU of Saint-Étienne, Saint-Étienne, France.
| | - Claire Le Hello
- Vascular medicine and therapeutic department, CHU of Saint-Étienne, Saint-Étienne, France.
| | - Laurent Bertoletti
- Vascular medicine and therapeutic department, CHU of Saint-Étienne, Saint-Étienne, France.
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