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Upadhyayula PS, Neira JA, Miller ML, Bruce JN. Benign and Malignant Tumors of the Pineal Region. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1405:153-173. [PMID: 37452938 DOI: 10.1007/978-3-031-23705-8_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Pineal region tumors fall into five broad categories: benign pineal region tumors, glial tumors, papillary tumors, pineal parenchymal tumors, and germ cell tumors. Genetic and transcriptional studies have identified key chromosomal alterations in germinomas (RUNDC3A, ASAH1, LPL) and in pineocytomas/pineoblastomas (DROSHA/DICER1, RB1). Pineal region tumors generally present with symptoms of hydrocephalus including nausea, vomiting, papilledema, and the classical Parinaud's triad of upgaze paralysis, convergence-retraction nystagmus, and light-near pupillary dissociation. Workup requires neuroimaging and tissue diagnosis via biopsy. In germinoma cases, diagnosis may be made based on serum or CSF studies for alpha-fetoprotein or beta-HCG making the preferred treatment radiosurgery, thereby preventing the need for unnecessary surgeries. Treatment generally involves three steps: CSF diversion in cases of hydrocephalus, biopsy through endoscopic or stereotactic methods, and open surgical resection. Multiple surgical approaches are possible for approach to the pineal region. The original approach to the pineal region was the interhemispheric transcallosal first described by Dandy. The most common approach is the supracerebellar infratentorial approach as it utilizes a natural anatomic corridor for access to the pineal region. The paramedian or lateral supracerebellar infratentorial approach is another improvement that uses a similar anatomic corridor but allows for preservation of midline bridging veins; this minimizes the chance for brainstem or cerebellar venous infarction. Determination of the optimal approach relies on tumor characteristics, namely location of deep venous structures to the tumor along with the lateral eccentricity of the tumor. The immediate post-operative period is important as hemorrhage or swelling can cause obstructive hydrocephalus and lead to rapid deterioration. Adjuvant therapy, whether chemotherapy or radiation, is based on tumor pathology. Improvements within pineal surgery will require improved technology for access to the pineal region along with targeted therapies that can effectively treat and prevent recurrence of malignant pineal region tumors.
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Affiliation(s)
| | - Justin A Neira
- Department of Neurological Surgery, Columbia University, New York, USA
| | - Michael L Miller
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Jeffrey N Bruce
- Department of Neurological Surgery, Columbia University, New York, USA.
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Yu Y, Lu X, Yao Y, Xie Y, Ren Y, Chen L, Mao Y, Yao Z, Yue Q. A 2-step prediction model for diagnosis of germinomas in the pineal region. Neurooncol Adv 2023; 5:vdad094. [PMID: 37706201 PMCID: PMC10496942 DOI: 10.1093/noajnl/vdad094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
Abstract
Background Germinomas are sensitive to radiation and chemotherapy, and their management distinctly differs from other kinds of pineal region tumors. The aim of this study was to construct a prediction model based on clinical features and preoperative magnetic resonance (MR) manifestations to achieve noninvasive diagnosis of germinomas in pineal region. Methods A total of 126 patients with pineal region tumors were enrolled, including 36 germinomas, 53 nongerminomatous germ cell tumors (NGGCTs), and 37 pineal parenchymal tumors (PPTs). They were divided into a training cohort (n = 90) and a validation cohort (n = 36). Features were extracted from clinical records and conventional MR images. Multivariate analysis was performed to screen for independent predictors to differentiate germ cell tumors (GCTs) and PPTs, germinomas, and NGGCTs, respectively. From this, a 2-step nomogram model was established, with model 1 for discriminating GCTs from PPTs and model 2 for identifying germinomas in GCTs. The model was tested in a validation cohort. Results Both model 1 and model 2 yielded good predictive efficacy, with c-indexes of 0.967 and 0.896 for the diagnosis of GCT and germinoma, respectively. Calibration curve, decision curve, and clinical impact curve analysis further confirmed their predictive accuracy and clinical usefulness. The validation cohort achieved areas under the receiver operating curves of 0.885 and 0.926, respectively. Conclusions The 2-step model in this study can noninvasively differentiate GCTs from PPTs and further identify germinomas, thus holding potential to facilitate treatment decision-making for pineal region tumors.
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Affiliation(s)
- Yang Yu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
| | - Xiaoli Lu
- Department of Nursing, Huashan Hospital, Fudan University, Shanghai, China
| | - Yidi Yao
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
| | - Yongsheng Xie
- National Center for Neurological Disorders, Shanghai, China
- Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Fudan University, Shanghai, China
| | - Yan Ren
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
| | - Liang Chen
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
- Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Fudan University, Shanghai, China
| | - Ying Mao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
- Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Fudan University, Shanghai, China
| | - Zhenwei Yao
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
| | - Qi Yue
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
- Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Fudan University, Shanghai, China
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Shabo E, Czech T, Nicholson JC, Mallucci C, Mottolese C, Piatelli G, Frappaz D, Murray MJ, Faure-Conter C, Garrè ML, Sarikaya-Seiwert S, Weinhold L, Haberl H, Calaminus G. Evaluation of the Perioperative and Postoperative Course of Surgery for Pineal Germinoma in the SIOP CNS GCT 96 Trial. Cancers (Basel) 2022; 14:cancers14143555. [PMID: 35884617 PMCID: PMC9323477 DOI: 10.3390/cancers14143555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/16/2022] [Accepted: 07/18/2022] [Indexed: 02/05/2023] Open
Abstract
Background: CNS germinoma, being marker-negative, are mainly diagnosed by histological examination. These tumors predominantly appear in the suprasellar and/or pineal region. In contrast to the suprasellar region, where biopsy is the standard procedure in case of a suspected germ-cell tumor to avoid mutilation to the endocrine structures, pineal tumors are more accessible to primary resection. We evaluated the perioperative course of patients with pineal germinoma who were diagnosed by primary biopsy or resection in the SIOP CNS GCT 96 trial. Methods: Overall, 235 patients had germinoma, with pineal localization in 113. The relationship between initial symptoms, tumor size, and postoperative complications was analyzed. Results: Of 111 evaluable patients, initial symptoms were headache (n = 98), hydrocephalus (n = 93), double vision (n = 62), Parinaud syndrome (n = 57), and papilledema (n = 44). There was no significant relationship between tumor size and primary symptoms. A total of 57 patients underwent primary resection and 54 underwent biopsy. Postoperative complications were reported in 43.2% of patients after resection and in 11.4% after biopsy (p < 0.008). Biopsy was significantly more commonly performed on larger tumors (p= 0.002). Conclusions: These results support the practice of biopsy over resection for histological confirmation of pineal germinoma.
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Affiliation(s)
- Ehab Shabo
- Department of Neurosurgery, Rheinische Friedrich-Wilhelms-University, Sigmund-Freud-Straße 25, 53127 Bonn, Germany
- Correspondence: ; Tel.: +49-228-287-16521; Fax: +49-228-287-11366
| | - Thomas Czech
- Department of Neurosurgery, Medical University of Vienna, 1090 Vienna, Austria;
| | - James C. Nicholson
- Department of Paediatric Haematology and Oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK;
| | - Conor Mallucci
- Department of Neurosurgery, Alder Hey Children’s Hospital, Liverpool L14 5AB, UK; (C.M.); (M.J.M.)
| | - Carmine Mottolese
- Neurochirurgie Pédiatrique, Hôpital Femme-Mère-Enfant, Université de Lyon, 59, Boulevard Pinel, 69003 Lyon, France;
| | - Gianluca Piatelli
- Division of Neurosurgery, Department of Neurosciences, Giannina Gaslini Children’s Hospital, 16147 Genvoa, Italy;
| | - Didier Frappaz
- Department of Pediatric Hematology and Oncology, Institut d’Hématologie et d’Oncologie Pédiatrique, 69008 Lyon, France; (D.F.); (C.F.-C.)
| | - Matthew Jonathan Murray
- Department of Neurosurgery, Alder Hey Children’s Hospital, Liverpool L14 5AB, UK; (C.M.); (M.J.M.)
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Cecile Faure-Conter
- Department of Pediatric Hematology and Oncology, Institut d’Hématologie et d’Oncologie Pédiatrique, 69008 Lyon, France; (D.F.); (C.F.-C.)
| | - Maria Luisa Garrè
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy;
| | - Sevgi Sarikaya-Seiwert
- Section of Pediatric Neurosurgery, Department of Neurosurgery, Rheinische, Friedrich-Wilhelms-University, Sigmund-Freud-Straße 25, 53127 Bonn, Germany; (S.S.-S.); (H.H.)
| | - Leonie Weinhold
- Department of Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, 53127 Bonn, Germany;
| | - Hannes Haberl
- Section of Pediatric Neurosurgery, Department of Neurosurgery, Rheinische, Friedrich-Wilhelms-University, Sigmund-Freud-Straße 25, 53127 Bonn, Germany; (S.S.-S.); (H.H.)
| | - Gabriele Calaminus
- Department of Pediatric Hematology and Oncology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany;
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Mission impossible: chemotherapy in the intensive care for pineal region germ cell tumor. Childs Nerv Syst 2022; 38:179-183. [PMID: 33474571 DOI: 10.1007/s00381-020-05031-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/29/2020] [Indexed: 10/22/2022]
Abstract
Pineal region tumors are rare and a heterogenous group of primary central nervous system tumors which are primarily classified as germ cell tumors and non-germ cell tumors. Chemotherapy and radiotherapy as the primary treatment modalities have been reported to result in good outcomes. We discuss the case of a young girl who presented to our emergency department in an unconscious state and had a large lesion in the posterior third ventricular region, but without any associated hydrocephalus which could explain her stuporous state. Given the rapid decline in her sensorium, we were faced with the difficult choice between surgical decompression of the tumor and a trial of rescue chemotherapy following histopathological confirmation through biopsy. She underwent an open biopsy followed by chemotherapy in a neurosurgical intensive care unit despite her poor Karnofsky performance score. She improved after chemotherapy and her tumor decreased in size significantly over time. We highlight the role of chemotherapy administered in the neurosurgical ICU to an unconscious patient with a large chemoresponsive tumor leading to rapid shrinkage of the lesion and gradual improvement in the sensorium of the patient.
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Molecular Pathology and Targeted Therapies for Personalized Management of Central Nervous System Germinoma. J Pers Med 2021; 11:jpm11070661. [PMID: 34357128 PMCID: PMC8306901 DOI: 10.3390/jpm11070661] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/05/2021] [Accepted: 07/10/2021] [Indexed: 12/19/2022] Open
Abstract
Intracranial germinomas are rare tumours, usually affecting male paediatric patients. They frequently develop in the pineal and suprasellar regions, causing endocrinological disturbances, visual deficits, and increased intracranial pressure. The diagnosis is established on magnetic resonance imaging (MRI), serum and cerebrospinal fluid (CSF) markers, and tumour stereotactic biopsy. Imaging techniques, such as susceptibility-weighted imaging (SWI), T2* (T2-star) gradient echo (GRE) or arterial spin labelling based perfusion-weighted MRI (ASL-PWI) facilitate the diagnosis. Germinomas are highly radiosensitive tumours, with survival rates >90% in the context of chemoradiotherapy. However, patients with resistant disease have limited therapeutic options and poor survival. The aim of this review is to highlight the genetic, epigenetic, and immunologic features, which could provide the basis for targeted therapy. Intracranial germinomas present genetic and epigenetic alterations (chromosomal aberrations, KIT, MAPK and PI3K pathways mutations, DNA hypomethylation, miRNA dysregulation) that may represent targets for therapy. Tyrosine kinase and mTOR inhibitors warrant further investigation in these cases. Immune markers, PD-1 (programmed cell death protein 1) and PD-L1 (programmed death-ligand 1), are expressed in germinomas, representing potential targets for immune checkpoint inhibitors. Resistant cases should benefit from a personalized management: genetic and immunological testing and enrolment in trials evaluating targeted therapies in intracranial germinomas.
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Kanamori M, Takami H, Yamaguchi S, Sasayama T, Yoshimoto K, Tominaga T, Inoue A, Ikeda N, Kambe A, Kumabe T, Matsuda M, Tanaka S, Natsumeda M, Matsuda KI, Nonaka M, Kurihara J, Yamaoka M, Kagawa N, Shinojima N, Negoto T, Nakahara Y, Arakawa Y, Hatazaki S, Shimizu H, Yoshino A, Abe H, Akimoto J, Kawanishi Y, Suzuki T, Natsume A, Nagane M, Akiyama Y, Keino D, Fukami T, Tomita T, Kanaya K, Tokuyama T, Izumoto S, Nakada M, Kuga D, Yamamoto S, Anei R, Uzuka T, Fukai J, Kijima N, Terashima K, Ichimura K, Nishikawa R. So-called bifocal tumors with diabetes insipidus and negative tumor markers: are they all germinoma? Neuro Oncol 2021; 23:295-303. [PMID: 32818237 PMCID: PMC7906060 DOI: 10.1093/neuonc/noaa199] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The Delphi consensus statements on the management of germ cell tumors (GCTs) failed to reach agreements on the statement that the cases with (i) pineal and neurohypophyseal bifocal lesion, (ii) with diabetes insipidus, and (iii) with negative tumor markers can be diagnosed as germinoma without histological verification. To answer this, multicenter retrospective analysis was performed. METHODS A questionnaire on clinical findings, histological diagnosis, and details of surgical procedures was sent to 86 neurosurgical and 35 pediatrics departments in Japan. RESULTS Fifty-one institutes reported 132 cases that fulfilled the 3 criteria. Tissue sampling was performed in 91 cases from pineal (n = 44), neurohypophyseal (n = 32), both (n = 6), and distant (n = 9) lesions. Histological diagnosis was established in 89 cases: pure germinoma or germinoma with syncytiotrophoblastic giant cells in 82 (92.1%) cases, germinoma and mature teratoma in 2 cases, and granulomatous inflammation in 2 cases. Histological diagnosis was not established in 2 cases. Although no tumors other than GCTs were identified, 3 (3.4%) patients had non-germinomatous GCTs (NGGCTs). None of the patients developed permanent complications after endoscopic or stereotactic biopsy. Thirty-nine patients underwent simultaneous procedure for acute hydrocephalus without permanent complications, and hydrocephalus was controlled in 94.9% of them. CONCLUSION All patients who fulfilled the 3 criteria had GCTs or granulomatous inflammation, but not other types of tumors. However, no fewer than 3.4% of the patients had NGGCTs. Considering the safety and the effects of simultaneous procedures for acute hydrocephalus, biopsy was recommended in such patients.
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Affiliation(s)
- Masayuki Kanamori
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hirokazu Takami
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shigeru Yamaguchi
- Department of Neurosurgery, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Takashi Sasayama
- Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Teiji Tominaga
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Naokado Ikeda
- Department of Neurosurgery and Neuroendovascular Surgery, Osaka Medical College, Osaka, Japan
| | - Atsushi Kambe
- Division of Neurosurgery, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Toshihiro Kumabe
- Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Masahide Matsuda
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Shota Tanaka
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Manabu Natsumeda
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | - Ken-Ichiro Matsuda
- Department of Neurosurgery, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Masahiro Nonaka
- Department of Neurosurgery, Kansai Medical University, Osaka, Japan
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children’s Medical Center, Saitama, Japan
| | - Masayoshi Yamaoka
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo, Japan
| | - Naoki Kagawa
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Naoki Shinojima
- Department of Neurosurgery, Kumamoto University Hospital, Kumamoto, Japan
| | - Tetsuya Negoto
- Department of Neurosurgery, Kurume University School of Medicine, Kurume, Japan
| | - Yukiko Nakahara
- Department of Neurosurgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Yoshiki Arakawa
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Seiji Hatazaki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Hiroaki Shimizu
- Department of Neurosurgery, Akita University Graduate School of Medicine, Akita, Japan
| | - Atsuo Yoshino
- Department of Neurological Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroshi Abe
- Department of Neurosurgery, Fukuoka University, Fukuoka, Japan
| | - Jiro Akimoto
- Department of Neurosurgery, Tokyo Medical University, Tokyo, Japan
| | - Yu Kawanishi
- Department of Neurosurgery, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Tomonari Suzuki
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Saitama, Japan
| | - Atsushi Natsume
- Department of Neurosurgery, Nagoya University School of Medicine, Nagoya, Japan
| | - Motoo Nagane
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Yukinori Akiyama
- Department of Neurosurgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children`s Medical Center, Yokohama, Japan
| | - Tadateru Fukami
- Department of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Takahiro Tomita
- Department of Neurosurgery, University of Toyama, Toyama, Japan
| | - Kohei Kanaya
- Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tsutomu Tokuyama
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Shuichi Izumoto
- Department of Neurosurgery, Kindai University Faculty of Medicine, Sayama, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Daisuke Kuga
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shohei Yamamoto
- Department of Pediatrics, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - Ryogo Anei
- Department of Neurosurgery, Asahikawa Medical University, Asahikawa, Japan
| | - Takeo Uzuka
- Department of Neurosurgery, Dokkyo Medical University, Tochigi, Japan
| | - Junya Fukai
- Department of Neurological Surgery, Wakayama Medical University School of Medicine Wakayama, Japan
| | - Noriyuki Kijima
- Department of Neurosurgery, Osaka National Hospital, Osaka, Japan
| | - Keita Terashima
- Division of Neuro-Oncology, National Center for Child Health and Development, Tokyo, Japan
| | - Koichi Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Ryo Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Saitama, Japan
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Lateral Temporal Approach for Image-Guided Stereotactic Biopsy of Pineal Region Tumors. World Neurosurg 2020; 147:144-149. [PMID: 33307256 DOI: 10.1016/j.wneu.2020.11.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Biopsy of pineal region neoplasms is frequently accomplished by way of endoscopic transventricular access or using an image-guided, computer-assisted stereotactic approach. METHODS We evaluated a nonorthogonal lateral temporal approach for stereotactic biopsy of pineal region tumors as a variation of previously described stereotactic methods. Magnetic resonance imaging-guided frameless stereotaxy was used to plan and perform biopsies of pineal region tumors using a nonorthogonal trajectory extending from the superior or middle temporal gyri through the temporal stem, anterior to the atrium of the lateral ventricle, and posterior to the corticospinal tract. RESULTS All patients had an uncomplicated postoperative course and remained at neurologic baseline. No parenchymal or ventricular hemorrhage was present on postoperative scans. A tissue diagnosis was obtained in all patients. CONCLUSIONS This method appears to be a safe alternative to stereotactic biopsy using other trajectories and provides adequate tissue for definitive diagnosis.
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Birski M, Furtak J, Krystkiewicz K, Birska J, Zielinska K, Sokal P, Rusinek M, Paczkowski D, Szylberg L, Harat M. Endoscopic versus stereotactic biopsies of intracranial lesions involving the ventricles. Neurosurg Rev 2020; 44:1721-1727. [PMID: 32827050 PMCID: PMC8121744 DOI: 10.1007/s10143-020-01371-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 08/08/2020] [Accepted: 08/17/2020] [Indexed: 11/30/2022]
Abstract
Stereotactic biopsies of ventricular lesions may be less safe and less accurate than biopsies of superficial lesions. Accordingly, endoscopic biopsies have been increasingly used for these lesions. Except for pineal tumors, the literature lacks clear, reliable comparisons of these two methods. All 1581 adults undergoing brain tumor biopsy from 2007 to 2018 were retrospectively assessed. We selected 119 patients with intraventricular or paraventricular lesions considered suitable for both stereotactic and endoscopic biopsies. A total of 85 stereotactic and 38 endoscopic biopsies were performed. Extra procedures, including endoscopic third ventriculostomy and tumor cyst aspiration, were performed simultaneously in 5 stereotactic and 35 endoscopic cases. In 9 cases (5 stereotactic, 4 endoscopic), the biopsies were nondiagnostic (samples were nondiagnostic or the results differed from those obtained from the resected lesions). Three people died: 2 (1 stereotactic, 1 endoscopic) from delayed intraventricular bleeding and 1 (stereotactic) from brain edema. No permanent morbidity occurred. In 6 cases (all stereotactic), additional surgery was required for hydrocephalus within the first month postbiopsy. Rates of nondiagnostic biopsies, serious complications, and additional operations were not significantly different between groups. Mortality was higher after biopsy of lesions involving the ventricles, compared with intracranial lesions in any location (2.4% vs 0.3%, p = 0.016). Rates of nondiagnostic biopsies and complications were similar after endoscopic or stereotactic biopsies. Ventricular area biopsies were associated with higher mortality than biopsies in any brain area.
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Affiliation(s)
- Marcin Birski
- Neurosurgery Department, 10th Military Research Hospital, ul. Powstancow Warszawy 5, 85-681, Bydgoszcz, Poland.
| | - Jacek Furtak
- Neurosurgery Department, 10th Military Research Hospital, ul. Powstancow Warszawy 5, 85-681, Bydgoszcz, Poland
| | - Kamil Krystkiewicz
- Neurosurgery Department, 10th Military Research Hospital, ul. Powstancow Warszawy 5, 85-681, Bydgoszcz, Poland
| | - Julita Birska
- Neurosurgery Department, 10th Military Research Hospital, ul. Powstancow Warszawy 5, 85-681, Bydgoszcz, Poland
| | - Karolina Zielinska
- Neurosurgery Department, 10th Military Research Hospital, ul. Powstancow Warszawy 5, 85-681, Bydgoszcz, Poland
| | - Paweł Sokal
- Department of Neurosurgery and Neurology, Jan Biziel University Hospital Collegium Medicum Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Marcin Rusinek
- Department of Neurosurgery and Neurology, Jan Biziel University Hospital Collegium Medicum Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Dariusz Paczkowski
- Department of Neurosurgery and Neurology, Jan Biziel University Hospital Collegium Medicum Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Lukasz Szylberg
- Department of Clinical Pathomorphology, Collegium Medicum Nicolaus Copernicus University, Bydgoszcz, Poland.,Department of Tumor Pathology and Pathomorphology, Oncology Center, Bydgoszcz, Poland.,Department of Pathomorphology, 10th Military Research Hospital, Bydgoszcz, Poland
| | - Marek Harat
- Neurosurgery Department, 10th Military Research Hospital, ul. Powstancow Warszawy 5, 85-681, Bydgoszcz, Poland
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Schulz M, Afshar-Bakshloo M, Koch A, Capper D, Driever PH, Tietze A, Grün A, Thomale UW. Management of pineal region tumors in a pediatric case series. Neurosurg Rev 2020; 44:1417-1427. [PMID: 32504201 PMCID: PMC8121748 DOI: 10.1007/s10143-020-01323-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/23/2020] [Accepted: 05/20/2020] [Indexed: 12/18/2022]
Abstract
Pineal region tumors commonly present with non-communicating hydrocephalus. These heterogeneous histological entities require different therapeutic regimens. We evaluated our surgical experience concerning procurance of a histological diagnosis, management of hydrocephalus, and choice of antitumoral treatment. We analyzed the efficacy of neuroendoscopic biopsy and endoscopic third ventriculocisternostomy (ETV) in patients with pineal region tumors between 2006 and 2019 in a single-center retrospective cross-sectional study with regard to diagnostic yield, hydrocephalus treatment, as well as impact on further antitumoral management. Out of 28 identified patients, 23 patients presented with untreated hydrocephalus and 25 without histological diagnosis. One patient underwent open biopsy, and 24 received a neuroendoscopic biopsy with concomitant hydrocephalus treatment if necessary. Eighteen primary ETVs, 2 secondary ETVs, and 2 ventriculoperitoneal shunts (VPSs) were performed. Endoscopic biopsy had a diagnostic yield of 95.8% (23/24) and complication rates of 12.5% (transient) and 4.2% (permanent), respectively. ETV for hydrocephalus management was successful in 89.5% (17/19) with a median follow-up of more than 3 years. Following histological diagnosis, 8 patients (28.6%) underwent primary resection of their tumor. Another 9 patients underwent later-stage resection after either adjuvant treatment (n = 5) or for progressive disease during observation (n = 4). Eventually, 20 patients received adjuvant treatment and 7 were observed after primary management. One patient was lost to follow-up. Heterogeneity of pineal region tumor requires histological confirmation. Primary biopsy of pineal lesions should precede surgical resection since less than a third of patients needed primary surgical resection according to the German pediatric brain tumor protocols. Interdisciplinary decision making upfront any treatment is warranted in order to adequately guide treatment.
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Affiliation(s)
- Matthias Schulz
- Pediatric Neurosurgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Melissa Afshar-Bakshloo
- Pediatric Neurosurgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Arend Koch
- Department of Neuropathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - David Capper
- Department of Neuropathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Pablo Hernáiz Driever
- Department of Pediatric Oncology and Hematology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Anna Tietze
- Institute of Neuroradiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Arne Grün
- Department of Radiation Oncology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Ulrich-Wilhelm Thomale
- Pediatric Neurosurgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany.
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Cheng G, Yu X, Zhao H, Cao W, Li H, Li Q, Li Z, Yin F, Liu R, Zhang J. Complications of stereotactic biopsy of lesions in the sellar region, pineal gland, and brainstem: A retrospective, single-center study. Medicine (Baltimore) 2020; 99:e18572. [PMID: 32080071 PMCID: PMC7034708 DOI: 10.1097/md.0000000000018572] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Stereotactic biopsy (STB) is commonly used in the pathological diagnosis of intracranial lesions. The associated complication and mortality rates are low, but few reports with large sample sizes have assessed the complications of STB for lesions in the brain midline.To evaluate the complications of STB of lesions in the sellar region, pineal region, and brainstem.This was a retrospective analysis of patients who underwent STB of lesions in the sellar region, pineal region, and brainstem at the Neurosurgery Department, Sixth Medical Center, PLA General Hospital, China, between January 2015 and December 2017. The rates of and possible reasons for surgical complications (including bleeding) and mortality were analyzed.A total of 145 patients underwent STB of midline brain lesions, including 16 (11.0%) in the sellar region, 18 (12.4%) in the pineal region, and 111 (76.6%) in the brainstem. Successful biopsy of the sellar region, pineal region, and brainstem was achieved in 16/16 (100%), 18/18 (100%), and 107/111 (96.4%) patients, respectively. There were no complications following STB of lesion in the sellar or pineal regions. Complications occurred in 17/111 patients (15.3%) during/after brainstem biopsy, three of whom died (2.7%). The main clinical manifestations were facioplegia, facial pain, changes in blood pressure and heart rate, and difficulty breathing.STB of lesions in the sellar region, pineal region, and brainstem had a high success rate, but mortality was 2.7%. The occurrence of complications (15.3%) was closely related to the anatomical and functional characteristics of the region biopsied.
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Mohme M, Fritzsche FS, Mende KC, Matschke J, Löbel U, Kammler G, Westphal M, Emami P, Martens T. Tectal gliomas: assessment of malignant progression, clinical management, and quality of life in a supposedly benign neoplasm. Neurosurg Focus 2019; 44:E15. [PMID: 29852760 DOI: 10.3171/2018.3.focus1850] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Tectal gliomas constitute a rare and inhomogeneous group of lesions with an uncertain clinical course. Because these supposedly benign tumors are frequently followed up by observation over many years, the authors undertook this analysis of their own case series in an effort to demonstrate that the clinical course is highly variable and that there is a potential for a progressive biology. METHODS Clinical data analysis of 23 cases of tectal glioma (involving 9 children and 14 adults) was performed retrospectively. Radiographic data were analyzed longitudinally and MR images were evaluated for tumor volume, contrast enhancement, and growth progression. Quality of life was assessed using the EORTC BN20 and C30 questionnaires during follow-up in a subgroup of patients. RESULTS The patients' mean age at diagnosis was 29.2 years. The main presenting symptom at diagnosis was hydrocephalus (80%). Six patients were treated by primary tumor resection (26.1%), 3 patients underwent biopsy followed by resection (13.1%), and 3 patients underwent biopsy only (13.1%). For additional treatment of hydrocephalus, 14 patients (60.9%) received shunts and/or endoscopic third ventriculostomy. Radiographic tumor progression was observed in 47.9% of the 23 cases. The mean time between diagnosis and growth progression was 51.5 months, and the mean time to contrast enhancement was 69.7 months. Histopathological analysis was obtained in 12 cases (52.2%), resulting in 5 cases of high-grade glioma (3 cases of glioblastoma multiforme [GBM], grade IV, and 2 of anaplastic astrocytoma, grade III), 5 cases of pilocytic astrocytoma, 1 diffuse astrocytoma, and 1 ganglioglioma. Malignant progression was observed in 2 cases, with 1 case progressing from a diffuse astrocytoma (grade II) to a GBM (grade IV) within a period of 13 years. Quality-of-life measurements demonstrated distinct functional deficits compared to a healthy sample as well as glioma control cohorts. CONCLUSIONS Analysis of this case series shows that a major subpopulation of tectal gliomas show progression and malignant transformation in children as well as in adolescents. These tumors therefore cannot be considered inert lesions and require histological confirmation and close follow-up. Quality-of-life questionnaires show that tectal glioma patients might benefit from special psychological support in emotional, social, and cognitive functionality.
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Affiliation(s)
| | | | | | - Jakob Matschke
- 2Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Ventriculostomy and endoscopic biopsy of pineal mass with hydrocephalus and unexpected definitive diagnosis. Neurocirugia (Astur) 2019; 30:300-304. [PMID: 30878484 DOI: 10.1016/j.neucir.2019.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 01/08/2019] [Accepted: 01/19/2019] [Indexed: 11/24/2022]
Abstract
A 72-year-old female with no relevant medical history consulted in the emergency room for a two-week history of headache, vomiting and gait disturbance. Head CT scan revealed obstructive hydrocephalus secondary to a pineal mass with compression of the third ventricle. Magnetic Resonance showed another mass located in the right Lushcka foramen. Endoscopic third-ventriculostomy and biopsy of pineal mass were performed. Pathological analysis was consistent with metastasis of carcinoma. Full-body CT scan showed a lung mass related to primary carcinoma. The patient received systemic treatment for metastatic lung cancer. She died two months after diagnosis.
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Stereotactic brain biopsy: evaluation of robot-assisted procedure in 60 patients. Acta Neurochir (Wien) 2019; 161:545-552. [PMID: 30675655 DOI: 10.1007/s00701-019-03808-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/12/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Frameless stereotactic biopsies, particularly robot-assisted procedures are increasing in neurosurgery centers. Results of these procedures should be at least equal to or greater than frame-based reference procedure. Evaluate robot-assisted technology is necessary in particular, when a team has chosen to switch from one to another method. OBJECTIVE The objective of our prospective work was (i) to evaluate the success rate of contributive robotic-assisted biopsy in 60 patients, to report the morbidity and mortality associated with the procedure and (ii) to compare it with literature data. METHODS We performed a prospective and descriptive study including 60 consecutive patients having had robotic-assisted stereotactic biopsy at the Rouen University Hospital, France. All patients had presurgical imaging before the procedure included Magnetic Resonance Imaging merged with Computed Tomography scan acquisition. Registration was mostly performed with a touch-free laser (57/60). A control Computed Tomography scan was always realized at day 0 or day 1 after surgery. Data collected were success rate, bleeding, clinical worsening, infection, and mortality. RESULTS All the biopsies were considered as contributive and lead to the final diagnosis. In 41/60 patients (68%), the lesion was glial. Six in 60 patients (10%) had visible bleeding without clinical worsening related, 5/60 patients (8.5%) showed clinical impairment following surgery, which was permanent in 2 patients, and 1/60 patient presented generalized seizures. We did not report any infection and mortality. CONCLUSION Robot-assisted frameless surgery is efficient and provides a reasonable alternative to frame-based procedure. The operating time can be reduced, without increasing morbidity and mortality rates.
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Hogan E, Almira-Suarez I, Li S, Collins SP, Jean WC. Clinical Management of Prostate Cancer Metastasis to Pineal Gland: Case Report and Review of Literature. World Neurosurg 2018; 122:464-468. [PMID: 30476672 DOI: 10.1016/j.wneu.2018.11.111] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/12/2018] [Accepted: 11/13/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND Prostate cancer is the most common cancer among American men, with an incidence of approximately 233,000 cases per year. Intracranial metastases are rare and, specifically, metastasis to the pineal gland has only been reported in 2 postmortem cases in the literature. CASE DESCRIPTION We present the first documented case of confirmed prostate cancer metastasis to the pineal gland in a living patient. The patient underwent an endoscopic third ventriculostomy and pineal lesion biopsy with complete resolution of his hydrocephalus and presenting symptoms. His biopsy results confirmed the prostate origin of the metastasis, and he subsequently underwent stereotactic radiosurgery for treatment of this lesion. CONCLUSIONS This is the first report of the clinical management of metastatic prostate cancer to the pineal region and description of the clinical outcome. Although prostate cancer is the most common cancer in American men, metastasis to the pineal has only been reported twice from autopsy examinations. Overall, pineal tumors in the geriatric population are exceedingly rare and the age and comorbidities in this patient made management quite unique.
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Affiliation(s)
- Elizabeth Hogan
- Department of Neurological Surgery, George Washington University, Washington, D.C., USA
| | - Isabel Almira-Suarez
- Department of Pathology, Children's National Medical Center, Washington, D.C., USA
| | - Siyuan Li
- Department of Radiation Medicine, Georgetown University, Washington, D.C., USA
| | - Sean P Collins
- Department of Radiation Medicine, Georgetown University, Washington, D.C., USA
| | - Walter C Jean
- Department of Neurological Surgery, George Washington University, Washington, D.C., USA.
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Abbassy M, Aref K, Farhoud A, Hekal A. Outcome of single-trajectory rigid endoscopic third ventriculostomy and biopsy in the management algorithm of pineal region tumors: a case series and review of the literature. Childs Nerv Syst 2018; 34:1335-1344. [PMID: 29808320 DOI: 10.1007/s00381-018-3840-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 05/14/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND Tumors within the pineal region represent 1.5 to 8.5% of the pediatric brain tumors and 1.2% of all brain tumors. A management algorithm has been proposed in several publications. The algorithm includes endoscopic third ventriculostomy (ETV) and biopsy in cases presenting with hydrocephalus. In this series, we are presenting the efficacy of a single-trajectory approach for both ETV and biopsy. METHODS Eleven cases were admitted to Alexandria main university hospital from 2013 to 2016 presenting with pineal region tumors and hydrocephalus. Mean age at diagnosis was 11 years (1-27 years). All cases had ETV and biopsy using rigid ventriculoscope through a single trajectory from a burr hole planned on preoperative imaging. Follow-up period was 7-48 months. RESULTS All 11 cases presented with hydrocephalus and increased intracranial pressure manifestations. Histopathological diagnosis was successful in 9 out of 11 cases (81.8%). Three cases were germ-cell tumors, two cases were pineoblastomas, two cases were pilocytic astrocytomas, and two cases were grade 2 tectal gliomas. Five of the ETV cases (45.5%) failed and required VPS later on. Other complications of ETV included one case of intraventricular hemorrhage and a case with tumor disseminated to the basal cisterns. CONCLUSION In our series, we were able to achieve ETV and biopsy through a single trajectory and a rigid endoscope with results comparable to other studies in the literature.
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Affiliation(s)
- Mahmoud Abbassy
- Neurosurgery Department, Alexandria University, Khartoum sq. Al-Azareeta, Faculty of Medicine, Surgery Building 6th Floor Neurosurgery Department, Alexandria, Egypt.
| | - Khaled Aref
- Neurosurgery Department, Alexandria University, Khartoum sq. Al-Azareeta, Faculty of Medicine, Surgery Building 6th Floor Neurosurgery Department, Alexandria, Egypt
| | - Ahmed Farhoud
- Neurosurgery Department, Alexandria University, Khartoum sq. Al-Azareeta, Faculty of Medicine, Surgery Building 6th Floor Neurosurgery Department, Alexandria, Egypt
| | - Anwar Hekal
- Neurosurgery Department, Alexandria University, Khartoum sq. Al-Azareeta, Faculty of Medicine, Surgery Building 6th Floor Neurosurgery Department, Alexandria, Egypt
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Regression of Pineal Lesions: Spontaneous or Iatrogenic? A Case Report and Systematic Literature Review. World Neurosurg 2017; 108:939-947.e1. [PMID: 28844909 DOI: 10.1016/j.wneu.2017.08.106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/13/2017] [Accepted: 08/14/2017] [Indexed: 01/22/2023]
Abstract
BACKGROUND Tumors arising from the pineal region account for approximately 1% of intracranial neoplasms. We present a case of a previously healthy 5-year-old boy with an acute onset of headache. A magnetic resonance imaging (MRI) scan showed a pineal mass with aqueduct compression. The patient was scheduled for tumor resection. An endoscopic third ventriculostomy was performed in advance for the treatment of hydrocephalus. Afterwards, MRI showed a relevant regression of the pineal mass without specific treatment. Consequently, surgery was cancelled and further MRI follow-up showed a regression of the mass and a constant tumor mass over a period of 30 months. Spontaneous regression of malignant tumors is a rare phenomenon with an incidence of 1 of 60,000-100,000 cases. Only a few cases with spontaneous regression of pineal tumors have been reported. METHODS We performed a systematic literature review according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines on spontaneously regressing pineal lesions and found 13 cases in the literature. RESULTS Six hypotheses for explaining tumor regression were found, comprising treatment with steroids, effects of diagnostic irradiation, treatment of hydrocephalus, pineal apoplexy, surgical trauma, and immunologic mechanisms. None of these mechanisms was evidentiary. However, in all reported cases, some kind of treatment (e.g. treatment of hydrocephalus, application of steroids, and so on) has been performed before tumor regression. CONCLUSIONS The clinician has to bear in mind that regression of pineal tumors might be triggered by use of steroids, for example, and in cases of improvement of the patient's presenting symptoms, new MRI scans should be performed.
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Endoscopic Histologic Mapping of a Mixed Germ Pineal Tumor. World Neurosurg 2016; 95:625.e1-625.e5. [PMID: 27554308 DOI: 10.1016/j.wneu.2016.08.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 08/09/2016] [Accepted: 08/10/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND The accurate histologic diagnosis of germ cell tumors in the pineal region is a keystone for determining the best treatment strategy and prognosis. This situation poses a challenge for the neuropathologist, considering the lack of a standarized procedure to obtain biopsy samples, which results in few and small specimens, which are not suitable for diagnosis. CASE DESCRIPTION We report a case in which a pineal region mixed germ cell tumor was accurately diagnosed by performing histologic mapping through a dual burr-hole endoscopic approach. The technical pitfalls and other considerations necessary for obtaining an accurate diagnosis in this tumor subgroup are specified. In addition, the histologic analysis regarding the sampling technique used is described. CONCLUSIONS The supraorbital frontal endoscopic approach enables the surgeon to perform histologic mapping of pineal region tumors, allowing standarization of the procedure used to obtain the specimens. This approach could result in a more accurate diagnosis, especially in mixed germ cell neoplasms.
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