Parasitic affection equine


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Parasitic affection equine

  1. 1. .Ascariasis -1 .Babesiosis -11.strongylosis -2 .Trypanosomiasis -12.Oxyuriasis -3 .Mange -13.Habronemiasis -4 .Lice infestation -14.Onchocerciasis -5 .Tick infestation -15.Setariosis -6 .Culicoides infestation -16.Thelaziasis -7 .Musca spp infestation -17.Lung worm -8 .Stomoxys spp infestation -18.Cestodes -9 .Hypoderma spp myiasis -19.Hydatidosis -10 .Gastrophilus spp myiasis -20
  2. 2. Ileo- ileal intussusception )arrow 1( with severe compromise of intussusceptum )arrow 2(. Heavy ascarid burden
  3. 3. Verminous arteritis ) active lesion in Strongylosis )focal infarction in thoracic aorta(, blood clot adherent ) jejunumto wall of artery and larva visible ) at )end of pointer
  4. 4. Verminous arteritis )cranial mesenteric Mixed large and small Strongyles, arteritis(, proliferative reaction which large numbers of pinkish andcontained parasitic ) Strongylus vulgaris( beige parasites on surface of larvae mucosa Parasite infarction )of major mesenteric artery(, extensive infarction and consequent necrosis, no lumenal distension
  5. 5. Verminous arteritis ) lesion in Parasitic infarction )of minor artery )aortic root in wall of right dorsal colon(, lesion was due to Strongylus edentatus Verminous anterior mesenteric arteritis, in a 6 month old foal. Distension and thickening of cranial mesenteric artery with hemorrhagic thickening of the vessel wall. Parasitic larvae were visible embedded in the wall
  6. 6. Lesion on perianal skin and base of tail caused by self inflicted trauma
  7. 7. Enlarged urethral process Gastric form , abscess lesion due to chronic infection Granulamatous lesion on the leg of 28 days duration
  8. 8. Conjunctival form, characteristic Non healing wound , woundchronic, yellow, granular, ocular healed during winter but required discharge control of granulation tissues Lesion in nasolacrimal sac
  9. 9. Focal inflammatory lesion atsuperior limbus )arrow( and causing conjunctivitis and Cutaneous Onchcerciasis ) Onchocerca chemosis. Small margin of cervicalis (, annular lesion on head showinglocalized interstitial keratits alopecia, scaling and crusting ) 3 month duration( initially the lesion were poorly demarcated areas of acute dermatitis with prominent pruritis
  10. 10. Setaria digitata, fine gray white Setaria equi adult worms parasite in anterior chamber between intestine in the )arrow(, size of parasite peritoneal cavity magnified by cornea
  11. 11. Thelazia lacrimalis, adult parasites, appearing singlyand in groups, on surface ofcornea )arrow(. Parasite are easier to see when mobile
  12. 12. Caused by Dictyocaulus arnfeldiEndoscopic view, most of parasites shown here are larval forms. This is an exceptional burden for a horse
  13. 13. Removal of parasites revealed extensive mucosal ulceration and edema in the underlying cecal mucosa
  14. 14. Multiple cyst like lesions attached to liver capsule, no hepatic parenchyma involvement
  15. 15. Enlarged, pale and flabby Icterus m.m of lipsappearance of heart and splenomegally )easily )detached per rectum
  16. 16. Dourine, edema of urethralprocess, prepuce, penis and surrounding skin
  17. 17. Chorioptic mange ,extensive, foul smelling, exudative and proliferative, chronic dermatitis which had been present for 4 years Trombiculidiasis )mitespp(, head lesion showingsmall well defined, circular Chorioptic mange, alopecia lesions severe pruritis caused leg stamping and rubbing with consequent serum exudation and matting over the plantar and lateral aspect of the hind cannons and pasterns
  18. 18. Generalized infestation resulting Typical predilection site shownin a moth - eaten appearance of include face, base of the manethe winter coat and over lateral thorax. Severe pruritus resulted in self inflicted skin excoriation Adult lice and eggs )nits( are clearly visible to the naked eyes
  19. 19. Tick infestation hypersensitivity, edema associated with an engorging Ixodes spp tick above the upper Severe anemia and )eyelids )arrow edema of rectalmucosa due to heavy .infestation
  20. 20. Cuilcoideshypersensitivity,acute tail baselesions withexcoriation from selfinflicted trauma andprominent breakingand rubbing back of Ventral midline dermatitisthe tail hairs at the distinctive small exudative,base of tail granulomatous papules associated with edema, alopecia and severe pruritus. The ventral midline is the predilection site for the biting Culicoides hypersensitivity, chronic case showing lichenification and rugae formation with poor hair growth resulting permanently damaged skin
  21. 21. Culicoides hypersensitivity, Typical pattern of lesions progressive self inflicted due to dorsal biting spp trauma results in skin over back, wither and thickening and continued dorsal neckrubbing and self mutilation Culicoides hypersensitivity, continuous attack of Culicoides spp insects result in progressive irritation and intense pruritus, rubbing and self mutilation. Nodules loss their character and extensive dermal ulceration may occur
  22. 22. Culicoides hypersensitivity,The face and the persistence tailtop of the neck rubbing with loss)under the mane( of hair andare the damage to the tailpredilection sites base andfor this species of formation ofmidge nodules hyperkeratinized skin giving a rat tail effect Culicoides hypersensitivity ) sweet itch( early stage showing papules and nodules associated with the bites of the prevalent Culiciodes spp insect. Severe pruritus may result in nodules becoming abraded and serum exudation. Note the scrubbed appearance of the mane
  23. 23. Fly damage, massive numbers of flies in the corner of the eye commonlycause this physical damage, but in the early stages swelling and some localinflammation may be all that is present
  24. 24. Stomoxys hypersensitivity, central focus at bite site)arrow( and surrounding plaque of edema. Some bites in this case have subsided to a small central focus only while the more recent show an extensive hypersensitivity reaction
  25. 25. Subcutaneous nodules located over thewithers, shows typical breathing pore of )third stage larvae )arrow
  26. 26. Typical lesion on the Reddish larva and discretemucosa of the upper lip areas of inflammation, caused by the larva swelling and ulceration associated with previous attachment sites in the )stomach )arrow