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Two families under Superfamily Dioctophymatomoidea
Dioctophymatidae, Soboliphymatidae
T/F. Adults occur in the liver or stomach of their host.
FALSE. kidney or stomach
T/F. Males have only one spicule and have a muscular cranial sucker.
FALSE. caudal sucker
T/F. Females are oviparous.
FALSE. Viviparous
T/F. This superfamily has an indirect life cycle.
TRUE
IH of this superfamily
aquatic oligochaetes
giant kidney worm of mink
Dioctophyma renale
T/F. D. renale can also occur in ruminants.
FALSE. ferret, dog, cat, wild canids, swine, man
T/F. Males of D. renale can reach up to 45 mm.
FALSE. 45 cm
T/F. Males of D. renale are longer than females.
FALSE. males are 45 cm while females are 130 cm
Organ loc of D. renale
renal pelvis (sometimes in abdominal cavity of dog)
T/F. Eggs of D. renale are ellipsoidal with thick, yellowish brown, mamillated shell and bipolar plug
TRUE
T/F. D. renale eggs is passed in the urine in one-cell stage.
FALSE. two-cell
T/F. D. renale eggs embryonate to L2 in the water
FALSE. L1
T/F. D. renale eggs hatch upon swallowing by IH
TRUE
T/F. D. renale larvae invade the tissues of oligochaete, becomes infective L3 in 6 months.
FALSE. 2-3 months
Paratenic host of D. renale
fish and frogs that ingest infected oligochaete
T/F. Final host get infected by ingestion of IH only.
FALSE. IH and paratenic host
T/F. Pre-patent period of D. renale is 2 months - 6 years.
FALSE. 6 months - 2 years
T/F. developing and migrating worms can cause hepatitis and fibrosis of the kidney, secondary hydronephrosis, hematuria and uremia.
FALSE. peritonitis, liver damage, atrophy
T/F. only the left kidney is usually infected.
FALSE. right - infected, left - hypertrophied
T/F. The left kidney is modified into an enlarged, usually bony staghorn-like structure filled with worms
FALSE. right kidney
T/F. The Renal capsule is filled with fluid containing large numbers of eggs.
TRUE
T/F. Female worms found in the abdominal cavity are generally unfertilized
TRUE
T/F. Unfertilized eggs contribute to extensive peritonitis
TRUE
Diagnosis of Dioctophymosis
clinical signs, finding eggs in the urine, ultrasonography
Treatment of Dioctophymosis
surgical removal of kidney with worms
Medium-sized nematodes found in the stomach, sometimes intestine of mustelids and insectivores, including shrews and moles
Soboliphyme sp.
T/F. S. baturini can also infect dogs and cats
TRUE
This sp. possess an anterior sucker that they use to attach themselves firmly to the gut wall
Soboliphyme sp.
Organ loc of Soboliphyme sp.
gut wall
T/F. Eggs of Soboliphyme sp. are barrel-shaped with operculum at each end.
TRUE
IH of Soboliphyme sp.
Oligochaetes
occur in large tumors in the wall of proventriculus of piscivorous birds
Eustrogylides
occur in small to medium-sized tumors in the proventriculus of anatids and Ciconiiformes."
Hystrichis