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. Ileo- ileal intussusception )arrow 1( with severe compromise of intussusceptum )arrow 2(. Heavy ascarid burden 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. 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. Verminous arteritis ) lesion inParasitic infarction )of minor artery)aortic root in wall of right dorsal colon(, lesionwas due to Strongylus edentatusVerminous anterior mesentericarteritis, in a 6 month old foal.Distension and thickening ofcranial mesenteric artery withhemorrhagic thickening of thevessel wall. Parasitic larvae werevisible embedded in the wall 6. Lesion on perianal skin and base of tail caused by selfinflicted trauma 7. Enlarged urethral process Gastric form , abscess lesion due to chronic infection Granulamatous lesion on the leg of 28 days duration 8. Conjunctival form, characteristicNon healing wound , woundchronic, yellow, granular, ocular healed during winter but required dischargecontrol of granulation tissuesLesion innasolacrimalsac 9. Focal inflammatory lesion atsuperior limbus )arrow( and causing conjunctivitis and Cutaneous Onchcerciasis ) Onchocerca chemosis. Small margin ofcervicalis (, annular lesion on head showinglocalized interstitial keratits alopecia, scaling and crusting ) 3 monthduration( initially the lesion were poorly demarcated areas of acute dermatitis with prominent pruritis 10. Setaria digitata, fine gray white Setaria equi adult worms parasite in anterior chamber between intestine in the )arrow(, size of parasiteperitoneal cavitymagnified by cornea 11. Thelazia lacrimalis, adult parasites, appearing singlyand in groups, on surface ofcornea )arrow(. Parasite are easier to see when mobile 12. Caused by Dictyocaulus arnfeldiEndoscopic view, most of parasites shown here are larval forms. This is an exceptional burdenfor a horse 13. Removal of parasites revealed extensive mucosal ulceration and edema in theunderlying cecal mucosa 14. Multiple cyst like lesions attached to livercapsule, no hepatic parenchymainvolvement 15. Enlarged, pale and flabby Icterus m.m of lipsappearance of heart and splenomegally )easily)detached per rectum 16. Dourine, edema of urethralprocess, prepuce, penis and surrounding skin 17. Chorioptic mange ,extensive, foul smelling, exudative and proliferative, chronic dermatitis which had been present for 4 yearsTrombiculidiasis )mitespp(, head lesion showingsmall well defined, circular Chorioptic mange, alopecia lesionssevere 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. Generalized infestation resulting Typical predilection site shownin a moth - eaten appearance of include face, base of the manethe winter coat and over lateral thorax. Severepruritus resulted in self inflictedskin excoriationAdult lice and eggs )nits( areclearly visible to the naked eyes 19. Tick infestation hypersensitivity,edema associated with an engorgingIxodes spp tick above the upper Severe anemia and )eyelids )arrowedema of rectalmucosa due to heavy.infestation 20. Cuilcoideshypersensitivity,acute tail baselesions withexcoriation from selfinflicted trauma andprominent breakingand rubbing back ofVentral midline dermatitisthe tail hairs at the distinctive small exudative,base of tailgranulomatous papulesassociated with edema, alopeciaand severe pruritus. The ventral midline is the predilection sitefor the bitingCulicoides hypersensitivity, chroniccase showing lichenification andrugae formation with poor hair growthresulting permanently damaged skin 21. Culicoides hypersensitivity,Typical pattern of lesionsprogressive self inflicted due to dorsal biting spp trauma results in skin over back, wither and thickening and continueddorsal 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. Culicoideshypersensitivity,The face and thepersistence tailtop of the neck rubbing with loss)under the mane(of hair andare the damage to the tailpredilection sitesbase andfor this species of formation ofmidge noduleshyperkeratinizedskin giving a rattail effectCulicoides hypersensitivity ) sweet itch(early stage showing papules and nodulesassociated with the bites of the prevalentCuliciodes spp insect. Severe pruritus mayresult in nodules becoming abraded andserum exudation. Note the scrubbedappearance of the mane 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. Stomoxys hypersensitivity, central focus at bite site)arrow( and surrounding plaque of edema. Some bites inthis case have subsided to a small central focus only while the more recent show an extensive hypersensitivity reaction 25. Subcutaneous nodules located over thewithers, shows typical breathing pore of )third stage larvae )arrow 26. Typical lesion on theReddish larva and discretemucosa of the upper lip areas of inflammation,caused by the larva swelling and ulceration associated with previousattachment sites in the)stomach )arrow