神経鞘腫 = シュワン細胞腫
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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/12/01 22:16:50」(JST)
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Schwannoma |
Micrograph of a schwannoma showing both a cellular Antoni A area (center and right of image) and a loose paucicellular Antoni B area (left edge of image). HPS stain.
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Classification and external resources |
Specialty |
oncology |
ICD-10 |
C72.4 |
ICD-9-CM |
225.1 |
ICD-O |
M9560/0 |
DiseasesDB |
33713 |
MeSH |
D009442 |
A schwannoma (also known as an "neurilemoma,"[1]:621 "neuroma,"[2] "neurolemoma,"[2] and "Schwann cell tumor"[2]) is a benign nerve sheath tumor composed of Schwann cells, which normally produce the insulating myelin sheath covering peripheral nerves.
Schwannomas are homogeneous tumors, consisting only of Schwann cells. The tumor cells always stay on the outside of the nerve, but the tumor itself may either push the nerve aside and/or up against a bony structure (thereby possibly causing damage). Schwannomas are relatively slow-growing. For reasons not yet understood, schwannomas are mostly benign and less than 1% become malignant, degenerating into a form of cancer known as neurofibrosarcoma.
Schwannomas can arise from a genetic disorder called neurofibromatosis. They are universally S-100 positive.
Schwannomas can be removed surgically. Recurrences after total removal are rare.
Verocay bodies are seen histologically in schwannomas.
Contents
- 1 See also
- 2 Additional images
- 3 References
- 4 See also
See also
- Intranodal palisaded myofibroblastoma
- List of inclusion bodies that aid in diagnosis of cutaneous conditions
Additional images
References
- ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.
- ^ a b c Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0.
See also
- Neurofibroma
- Vestibular schwannoma (Acoustic neuroma)
Nervous tissue tumors/NS neoplasm/Neuroectodermal tumor (ICD-O 9350–9589) (C70–C72, D32–D33, 191–192/225)
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Endocrine |
Sellar: |
- Craniopharyngioma
- Pituicytoma
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Other: |
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CNS |
Neuroepithelial
(brain tumors,
spinal tumors) |
Glioma |
Astrocyte |
- Astrocytoma
- Pilocytic astrocytoma
- Pleomorphic xanthoastrocytoma
- Subependymal giant cell astrocytoma
- Fibrillary astrocytoma
- Anaplastic astrocytoma
- Glioblastoma multiforme
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Oligodendrocyte |
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Ependyma |
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Choroid plexus |
- Choroid plexus tumor
- Choroid plexus papilloma
- Choroid plexus carcinoma
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Multiple/unknown |
- Oligoastrocytoma
- Gliomatosis cerebri
- Gliosarcoma
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Mature
neuron |
- Ganglioneuroma: Ganglioglioma
- Retinoblastoma
- Neurocytoma
- Dysembryoplastic neuroepithelial tumour
- Lhermitte–Duclos disease
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PNET |
- Neuroblastoma
- Esthesioneuroblastoma
- Ganglioneuroblastoma
- Medulloblastoma
- Atypical teratoid rhabdoid tumor
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Primitive |
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Meningiomas
(Meninges) |
- Meningioma
- Hemangiopericytoma
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Hematopoietic |
- Primary central nervous system lymphoma
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PNS: NST |
- Cranial and paraspinal nerves: Neurofibroma
- Neurofibrosarcoma
- Neurofibromatosis
- Neurilemmoma/Schwannoma
- Malignant peripheral nerve sheath tumor
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Note: Not all brain tumors are of nervous tissue, and not all nervous tissue tumors are in the brain (see brain metastasis).
Index of the central nervous system
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Description |
- Anatomy
- meninges
- cortex
- association fibers
- commissural fibers
- lateral ventricles
- basal ganglia
- diencephalon
- mesencephalon
- pons
- cerebellum
- medulla
- spinal cord
- Physiology
- Development
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Disease |
- Addiction
- Cerebral palsy
- Meningitis
- Demyelinating diseases
- Seizures and epilepsy
- Headache
- Stroke
- Sleep
- Congenital
- Injury
- Neoplasms and cancer
- Other
- Symptoms and signs
- head and neck
- eponymous
- lesions
- Tests
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Treatment |
- Procedures
- Drugs
- general anesthetics
- analgesics
- dependence
- epilepsy
- cholinergics
- migraine
- Parkinson's
- vertigo
- other
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Index of the peripheral nervous system
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Description |
- Anatomy
- Nerves
- cranial
- trigeminal
- cervical
- brachial
- lumbosacral plexus
- somatosensory
- spinal
- autonomic
- Physiology
- reflexes
- proteins
- neurotransmitters
- transporters
- Development
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Disease |
- Autonomic
- Congenital
- Injury
- Neoplasms and cancer
- Other
- Symptoms and signs
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Treatment |
- Procedures
- Local anesthetics
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UpToDate Contents
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English Journal
- Type 1 papillary renal cell carcinoma in a patient with schwannomatosis: Mosaic versus loss of SMARCB1 expression in respectively schwannoma and renal tumor cells.
- Hulsebos TJ1, Kenter S1, Baas F1, Nannenberg EA2, Bleeker FE2, van Minkelen R3, van den Ouweland AM3, Wesseling P4,5, Flucke U4.
- Genes, chromosomes & cancer.Genes Chromosomes Cancer.2016 Apr;55(4):350-4. doi: 10.1002/gcc.22338. Epub 2016 Jan 22.
- In schwannomatosis, germline SMARCB1 or LZTR1 mutations predispose to the development of multiple benign schwannomas. Besides these, other tumors may occur in schwannomatosis patients. We present a 45-year-old male patient who developed multiple schwannomas and in addition a malignant type 1 papilla
- PMID 26799435
- Identification of cranial nerves around trigeminal schwannomas using diffusion tensor tractography: a technical note and report of 3 cases.
- Wei PH1, Qi ZG2, Chen G1, Li MC1, Liang JT1, Guo HC1, Bao YH3, Hao Q4.
- Acta neurochirurgica.Acta Neurochir (Wien).2016 Mar;158(3):429-35. doi: 10.1007/s00701-015-2680-5. Epub 2016 Jan 6.
- BACKGROUND: There are no large series studies identifying the locations of cranial nerves (CNs) around trigeminal schwannomas (TSs); however, surgically induced cranial neuropathies are commonly observed after surgeries to remove TSs. In this study, we preoperatively identified the location of CNs n
- PMID 26733128
- Mammary-type Myofibroblastoma: Clinicopathologic Characterization in a Series of 143 Cases.
- Howitt BE1, Fletcher CD.
- The American journal of surgical pathology.Am J Surg Pathol.2016 Mar;40(3):361-7. doi: 10.1097/PAS.0000000000000540.
- Mammary-type myofibroblastoma (MTMF) is a benign mesenchymal neoplasm initially described to occur in the breast. MTMF is typically CD34 and desmin positive and genetically has rearrangement or deletion of 13q14, resulting in loss of Rb expression by immunohistochemistry (IHC). Although the wider an
- PMID 26523539
Japanese Journal
- 症例 胃癌腹部大動脈周囲リンパ節転移と鑑別を要した後腹膜神経鞘腫の1例
- 若林 秀幸,松谷 毅,新井 洋紀 [他]
- 外科 = Surgey : 臨床雑誌 76(3), 314-317, 2014-03
- NAID 40019989809
- 脊髄髄膜腫と脊髄神経鞘腫の単純MRI像での比較検討 (日本脊椎脊髄病学会 英文原著号) -- (第42回日本脊椎脊髄病学会優秀論文)
- 岩田 栄一朗,小泉 宗久,重松 英樹 [他]
- Journal of spine research : official journal of the Japanese Society for Spine Surgery and Related Research 5(2), 122-125, 2014-02
- NAID 40019996759
Related Links
- 神経鞘腫(シュワン細胞腫)Schwannoma 2006年4月 東京都立駒込病院病理科 船田信顕 第1章 はじめに 神経鞘腫は末梢神経の構成細胞であるシュワン細胞由来と考えられる良性腫瘍で、増殖は緩徐です。一般的には成人に ...
- The best treatment options for schwannoma depends on several factors, including the size and location of the tumor; whether the tumor is benign or malignant (cancerous); and the age and overall health of the affected ...
Related Pictures
★リンクテーブル★
[★]
- 英
- neurinoma, neurilemoma
- 同
- シュワン細胞腫 Schwannoma、シュワン腫
- 関
- 脳腫瘍
概念
- 良性腫瘍
- 原発性脳腫瘍全体の10%
- 神経鞘腫の約90%はCN VIII原発(聴神経鞘腫)。その中でも前庭神経に由来するものが多い。
疫学
- 30-60歳に好発
- 男女比=1:1.3-1.5
- 前庭神経(神経鞘腫の90%を占める)>三叉神経>舌咽・迷走・副神経、顔面神経、舌下神経、滑車神経
遺伝性
病理
- 薄い皮膜
- 柔らかい
- 黄白色、赤褐色で易出血性。
- Antoni A型とAntoni B型が混在
症状
- 1. 初発症状:難聴(言語識別能の低下、高音域での聴力低下)、耳鳴り。15%の症例で突発性難聴で初発。5%の症例でめまいで初発。
- 2. 進展して三叉神経を障害:角膜反射の消失。顔面神経は障害されにくい。
- 3. 進展して小脳、脳幹を障害:四肢の運動失調、歩行障害
- 4. 進展して第4脳室の閉塞、テント切痕部での髄液の通過障害:水頭症による頭蓋内圧亢進症状。
- 5. 下方に進展した場合:舌咽神経、迷走神経などの下位脳神経障害:嚥下障害
検査
画像検査
- T1:低信号
- T2:高信号
- Gd造影:均一に強く造影