Esophageal worm of dogs
Toxocara, Toxascaris species
Canine and feline roundworms
Ascarids of dogs and cats
Ancylostoma, Uncinaria species
Hookworms of dogs and cats
Whipworm of dogs
Giant kidney worm
Haemonchus, Ostertagia, Trichostrongylus, and Cooperia species
Eyeworm of ruminants
Abdominal worm of cattle
Strongylus vulgaris, S. edentatus, and S. equinus
Large strongyles of horses
Intestinal threadworm of swine
Nodular worm of swine
Large intestinal roundworm of pigs
Swine kidney worm
Proventriculus worm of pigeons
Human pinworm (pseudoparasite of dogs and cats)
Free-living soil nematodes or facultative parasites
Stomach worm of dogs and cats
Guinea worm of dogs
Correct diagnostic technique for spirocerca lupi
"Canine and feline esophageal worm"
Observing "paper clip-shaped eggs" on fecal flotation
Correct diagnostic technique for dioctophyma renale
"Canine giant kidney worm"
Observing large, rough, bipolar, barrel-shaped eggs on urine sedimentation (after centrifugation)
Correct diagnostic technique for Trichuris vulpis
Observing bipolar, football-shaped eggs in fecal flotation (eggs do not float well, therefore they must be allowed to float for a minimum of 15 minutes before viewing under microscope)
Correct diagnostic technique for filaroides osleri
Observing infective first-stage larvae with S-shaped appendage on the tail on fecal flotation
Correct diagnostic technique for dirofilaria immitis
Observing of microfilariae in blood samples using modified Knott's test in conjunction with commercially available ELISA
Correct diagnostic technique for stephanurus dentatus
"Swine kidney worm"
Observation of strongyle-type eggs in pig urine
Correct diagnostic technique for oesophagostomum dentatum
"Nodular worm of swine"
Standard fecal flotation or necropsy revealing large nodules within the wall of the large intestine
Correct diagnostic technique for oxyuris equi
Cellophane tape impressions of anus revealing larvated eggs
Correct diagnostic technique for ollulanus tricuspis
Flotation of feline vomitus revealing infective third-stage larvae
Correct diagnostic technique for trichinella spiralis
"Trichina worm in pigs"
Microscopic examination of muscle biopsy revealing encysted larvae in muscle tissue
Pathology produced by physaloptera species
"Canine and feline stomach worm"
Adult nematodes firmly attached to the stomach mucosa; blood suckers
Pathology produced by toxocara canis
"Canine and feline ascarids"
Physical blockage of the lumen of the small intestine
Pathology produced by trichuris vulpis
Blood suckers; tiny stylet in the tip of the whiplike anterior end cannulates blood vessels
Pathology produced by filaroides osleri
Formation of nodules at the bifurcation of the trachea
Pathology produced by gongylonema pulchrum
"Esophageal worm of ruminants"
Parasite lies embedded in esophageal submucosa in a zigzag fashion
Pathology produced by setaria equina
"Equine abdominal worm"
Nonpathogenic; solitary worms are found free within the abdominal cavity
Pathology produced by ancylostoma caninum
"Canine and feline hookworm"
Adult nematodes firmly attached to the mucosa of small intestine; voracious blood suckers
Pathology produced by oxyuris equi
Pruritus in the anal region; hairs at base of tail broken off from attempts at scratching anus
Pathology produced by spirocerca lupi
"Canine esophageal worm"
Formation of nodules in the esophagus
Pathology produced by dioctophyma renale
"Canine giant kidney worm"
Ingestion of solid tissue; renal parenchyma