Knowledge (XXG)

Necrotizing meningoencephalitis

Source 📝

127:(CFS) analysis and immunological test. Since only the CNS is affected by the pathology, there won't be any characteristic changes in organ systems other than the nervous system. Despite clinical examination methods, the specific diagnosis of NME depends on a postmortem, histopathological examination of the brain biopsy tissue or a necropsy. 213:
Even after several years of research, the complete pathogenesis of this disease is still not understood. Immunosuppressive and anticonvulsant drugs have extended the lives of several dogs for up to 7 months after the outbreak of the symptoms, although a complete recovery is not yet possible.
176:
Additionally, temporal lobes with dense mononuclear cells can be observed infiltrating the meninges, and cerebellar herniation through the foramen magnum, which leads to neurological symptoms like continuous circling or stroke-like seizures. Attempts at proving a viral etiology have been
69:
Although the pattern of inflammation is similar to other neuropathological conditions, resembling CNS inflammatory diseases which produces lesions alike to those that occur in NME, a definitive diagnosis can be made solely based on by histopathological examination through a
201:
on the behalf that the cause of NME is autoimmune related. Corticosteroids inhibit T-and B-Cells and slow down the production of cytokines, which restrain the immune system from attacking its own cells but also enfeeble its natural protection – the immune answer.
86:
and the reluctance to walk. Behavioral changes and an abnormal mentation might occur. After a short amount of time vestibulo-cerebellar symptoms will rapidly progress, leaving the animal in a state of depressed consciousness having
336:
Park ES, Uchida K, Nakayama H (July 2012). "Comprehensive immunohistochemical studies on canine necrotizing meningoencephalitis (NME), necrotizing leukoencephalitis (NLE), and granulomatous meningoencephalomyelitis (GME)".
151:
and the cerebrocortical area. The meninges itself is focally thickened by dense aggregations of lymphocytes, plasma cells and macrophages infiltrating due to the reinforced immune answer (perivascular cuffing).
114:
An antemortem diagnosis is often intricate considering the similarities of general neuro diagnostic profiles. To achieve a presumptive diagnosis on the live animal a multimodal approach is needed. Including the
205:
However, since the etiopathogenesis is still not totally understood, the inflammatory reactions are only partly reacting to the corticosteroids, such as the malacic or granulomatous changes.
42:
is nowadays mostly associated with, occurring essentially in small breed dogs ranging from six months to seven years of age. It causes intense necrotizing inflammatory lesions in the
419:
Greer KA, Schatzberg SJ, Porter BF, Jones KA, Famula TR, Murphy KE (June 2009). "Heritability and transmission analysis of necrotizing meningoencephalitis in the Pug".
102:
Despite seizures being a promoting factor of necrosis in primary inflammation diseases, it's not proven that the necrosis is extending to the white matter due to these
609:
Higgins RJ, Dickinson PJ, Kube SA, Moore PF, Couto SS, Vernau KM, Sturges BK, Lecouteur RA (May 2008). "Necrotizing meningoencephalitis in five Chihuahua dogs".
159:
between white and grey matter, exposing an asymmetrical ventricular enlargement. These lesions are selective with a predilection for the cerebral hemisphere.
467:"Idiopathic granulomatous and necrotising inflammatory disorders of the canine central nervous system: a review and future perspectives" 54:
that triggers the disease and contributes to its development has not yet been identified. It is presumed to have a multifactorial,
242:
Barber RM, Schatzberg SJ, Corneveaux JJ, Allen AN, Porter BF, Pruzin JJ, Platt SR, Kent M, Huentelman MJ (1 September 2011).
290:"A comparative pathological study on canine necrotizing meningoencephalitis and granulomatous meningoencephalomyelitis" 116: 38:
of the neuro cortex. It was originally identified and recorded in the 1960s in pure breed pugs, with which this
124: 27: 697: 513:"A canine case of necrotizing meningoencephalitis for long-term observation: clinical and MRI findings" 156: 139:) inflammation of both the meninges and encephalitis have characteristic histopathologic changes of 120: 35: 542: 63: 560:
Cooper JJ, Schatzberg SJ, Vernau KM, Summers BA, Porter BF, Siso S, Young BD, Levine JM (2014).
674: 626: 591: 534: 488: 436: 394: 354: 311: 261: 186: 562:"Necrotizing meningoencephalitis in atypical dog breeds: a case series and literature review" 288:
Suzuki M, Uchida K, Morozumi M, Hasegawa T, Yanai T, Nakayama H, Tateyama S (November 2003).
664: 618: 581: 573: 524: 478: 428: 386: 346: 301: 251: 653:"Necrotising encephalitis in the Yorkshire terrier: a case report and literature review" 669: 652: 586: 561: 144: 155:
Several multifocal encephalic lesions in corona radiata are erasing the border in the
691: 483: 466: 198: 546: 135:
When examining the transversal sections, the non-suppurative (lymphoplasmacytic and
377:
Cordy DR, Holliday TA (May 1989). "A necrotizing meningoencephalitis of pug dogs".
194: 30:(CNS) disorder in dogs, where an extensive cerebral necrosis is associated with a 140: 136: 651:
Kuwamura M, Adachi T, Yamate J, Kotani T, Ohashi F, Summers BA (October 2002).
432: 390: 218: 190: 103: 59: 47: 31: 350: 244:"Identification of risk loci for necrotizing meningoencephalitis in Pug dogs" 256: 243: 92: 55: 678: 630: 595: 538: 492: 440: 358: 315: 265: 398: 529: 512: 306: 289: 148: 88: 83: 51: 622: 577: 71: 39: 96: 511:
Kitagawa M, Okada M, Kanayama K, Sato T, Sakai T (November 2007).
43: 172:
Chronic – increase of perivascular cuffing, extensive necrosis
62:
etiology. The process is rapidly progressive, culminating in
82:
First signs of this immune dysregulation can show through
646: 644: 642: 640: 506: 504: 502: 460: 458: 456: 454: 452: 450: 283: 281: 279: 277: 275: 237: 235: 233: 8: 414: 412: 410: 408: 372: 370: 368: 331: 329: 327: 325: 166:Acute - mild inflammatory cell infiltration 185:In several studies the animals were given 668: 585: 528: 517:The Journal of Veterinary Medical Science 482: 465:Talarico LR, Schatzberg SJ (March 2010). 305: 294:The Journal of Veterinary Medical Science 255: 169:Subacute – intense inflammatory reactions 162:They can be divided into three phases: 566:Journal of Veterinary Internal Medicine 229: 7: 657:The Journal of Small Animal Practice 471:The Journal of Small Animal Practice 670:10.1111/j.1748-5827.2002.tb00014.x 217:The disease remains fatal, making 50:. The cause is still unclear. The 14: 484:10.1111/j.1748-5827.2009.00823.x 66:and ending fatally for the dog. 20:Necrotizing meningoencephalitis 421:Research in Veterinary Science 1: 714: 433:10.1016/j.rvsc.2008.10.002 391:10.1177/030098588902600301 250:. 102 Suppl 1 (1): S40–6. 131:Histopathological features 117:magnetic resonance imaging 26:) is a fatal inflammatory 221:an invariable necessity. 351:10.1177/0300985811429311 248:The Journal of Heredity 28:central nervous system 257:10.1093/jhered/esr048 611:Veterinary Pathology 530:10.1292/jvms.69.1195 379:Veterinary Pathology 339:Veterinary Pathology 307:10.1292/jvms.65.1233 157:cerebral hemispheres 147:(white matter), the 125:cerebrospinal liquid 623:10.1354/vp.45-3-336 121:computer tomography 36:meningoencephalitis 578:10.1111/jvim.12233 78:Signs and symptoms 64:status epilepticus 34:, non-suppurative 187:immunosuppressive 705: 683: 682: 672: 648: 635: 634: 606: 600: 599: 589: 557: 551: 550: 532: 508: 497: 496: 486: 462: 445: 444: 416: 403: 402: 374: 363: 362: 333: 320: 319: 309: 285: 270: 269: 259: 239: 713: 712: 708: 707: 706: 704: 703: 702: 688: 687: 686: 650: 649: 638: 608: 607: 603: 559: 558: 554: 510: 509: 500: 464: 463: 448: 418: 417: 406: 376: 375: 366: 335: 334: 323: 287: 286: 273: 241: 240: 231: 227: 211: 189:drugs, such as 183: 133: 112: 80: 17: 12: 11: 5: 711: 709: 701: 700: 690: 689: 685: 684: 663:(10): 459–63. 636: 601: 572:(1): 198–203. 552: 523:(11): 1195–8. 498: 446: 404: 364: 321: 300:(11): 1233–9. 271: 228: 226: 223: 210: 207: 182: 179: 177:unsuccessful. 174: 173: 170: 167: 145:corona radiata 143:nature in the 132: 129: 111: 108: 79: 76: 15: 13: 10: 9: 6: 4: 3: 2: 710: 699: 696: 695: 693: 680: 676: 671: 666: 662: 658: 654: 647: 645: 643: 641: 637: 632: 628: 624: 620: 617:(3): 336–46. 616: 612: 605: 602: 597: 593: 588: 583: 579: 575: 571: 567: 563: 556: 553: 548: 544: 540: 536: 531: 526: 522: 518: 514: 507: 505: 503: 499: 494: 490: 485: 480: 477:(3): 138–49. 476: 472: 468: 461: 459: 457: 455: 453: 451: 447: 442: 438: 434: 430: 427:(3): 438–42. 426: 422: 415: 413: 411: 409: 405: 400: 396: 392: 388: 384: 380: 373: 371: 369: 365: 360: 356: 352: 348: 345:(4): 682–92. 344: 340: 332: 330: 328: 326: 322: 317: 313: 308: 303: 299: 295: 291: 284: 282: 280: 278: 276: 272: 267: 263: 258: 253: 249: 245: 238: 236: 234: 230: 224: 222: 220: 215: 208: 206: 203: 200: 199:dexamethasone 196: 192: 188: 180: 178: 171: 168: 165: 164: 163: 160: 158: 153: 150: 146: 142: 138: 130: 128: 126: 122: 118: 109: 107: 105: 100: 98: 94: 90: 85: 77: 75: 73: 67: 65: 61: 57: 53: 49: 45: 41: 37: 33: 29: 25: 21: 698:Dog diseases 660: 656: 614: 610: 604: 569: 565: 555: 520: 516: 474: 470: 424: 420: 385:(3): 191–4. 382: 378: 342: 338: 297: 293: 247: 216: 212: 204: 195:prednisolone 184: 175: 161: 154: 134: 113: 101: 81: 68: 23: 19: 18: 141:necrotizing 137:histiocytic 110:Diagnostics 104:convulsions 16:Dog disease 225:References 219:euthanasia 191:cytarabine 60:autoimmune 48:Cerebellum 32:multifocal 209:Prognosis 181:Treatment 93:amaurosis 56:heritable 46:stem and 692:Category 679:12400645 631:18487490 596:24428322 547:33004172 539:18057839 493:19814766 441:19014875 359:22262353 316:14665754 266:21846746 149:thalamus 89:seizures 84:lethargy 72:necropsy 52:pathogen 587:4895549 399:2763409 119:(MRI), 40:disease 677:  629:  594:  584:  545:  537:  491:  439:  397:  357:  314:  264:  123:(CT), 97:ataxia 543:S2CID 44:brain 675:PMID 627:PMID 592:PMID 535:PMID 489:PMID 437:PMID 395:PMID 355:PMID 312:PMID 262:PMID 197:and 95:and 665:doi 619:doi 582:PMC 574:doi 525:doi 479:doi 429:doi 387:doi 347:doi 302:doi 252:doi 24:NME 694:: 673:. 661:43 659:. 655:. 639:^ 625:. 615:45 613:. 590:. 580:. 570:28 568:. 564:. 541:. 533:. 521:69 519:. 515:. 501:^ 487:. 475:51 473:. 469:. 449:^ 435:. 425:86 423:. 407:^ 393:. 383:26 381:. 367:^ 353:. 343:49 341:. 324:^ 310:. 298:65 296:. 292:. 274:^ 260:. 246:. 232:^ 193:, 106:. 99:. 91:, 74:. 58:, 681:. 667:: 633:. 621:: 598:. 576:: 549:. 527:: 495:. 481:: 443:. 431:: 401:. 389:: 361:. 349:: 318:. 304:: 268:. 254:: 22:(

Index

central nervous system
multifocal
meningoencephalitis
disease
brain
Cerebellum
pathogen
heritable
autoimmune
status epilepticus
necropsy
lethargy
seizures
amaurosis
ataxia
convulsions
magnetic resonance imaging
computer tomography
cerebrospinal liquid
histiocytic
necrotizing
corona radiata
thalamus
cerebral hemispheres
immunosuppressive
cytarabine
prednisolone
dexamethasone
euthanasia

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.