Testicular necrosis caused by Mesocestoides species in a dog

Abstract

Experiments on the susceptibility of swine, cattle, goats, ringdoves and rats to foot-and-mouth disease virus O/TWN/97. 1998) Differentiating infection from vaccination in foot-and-mouth disease using a panel of recombinant, non-structural proteins in ELISA. Vaccine 16, 446-459 SALT, J. S. (1993) The carrier state in foot-and-mouth disease -an immunological review.

Cestode infection in 2 dogs: cytologic findings in liver and a mesenteric lymph node

“…The second intermediate host is then ingested by the definitive host completing the life cycle. For unknown reasons, dogs that develop cestode peritonitis break from the typical life cycle and develop an infection that more closely resembles a second intermediate host with larval stages penetrating the intestine and undergoing massive asexual replication within internal organs or the peritoneal cavity . It remains unknown if these cases are caused by inadvertent ingestion of the first intermediate host (insect) or aberrant development of tetrathyridia after ingesting the second intermediate host (vertebrate) .…”

“…For unknown reasons, dogs that develop cestode peritonitis break from the typical life cycle and develop an infection that more closely resembles a second intermediate host with larval stages penetrating the intestine and undergoing massive asexual replication within internal organs or the peritoneal cavity. 2,3,8,14 It remains unknown if these cases are caused by inadvertent ingestion of the first intermediate host (insect) or aberrant development of tetrathyridia after ingesting the second intermediate host (vertebrate). 2 Similar to a second intermediate host, many reported cases of CPLC (as well as the 2 dogs in this report) show no evidence of adult Mesocestoides tapeworms inhabiting the intestines based on negative fecal examinations.…”

ULTRASONOGRAPHIC FEATURES OF PERITONEAL CESTODIASIS CAUSED BYMESOCESTOIDESSP. IN A DOG AND IN A CAT

“…Clinical signs of peritoneal larval cestodiasis may be absent or severe and may include anorexia, weakness, vomiting, weight loss, muscular wasting, lethargy, and abdominal effusion 5–8,10,11,13,14 . The most common gross lesions are severe fibrinous peritonitis, peritoneal effusion, serosal adhesions, and cyst formation 10,11,13–15 .…”

“…T apeworms of the genus Mesocestoides infect dogs, cats, and wild carnivores in North America, Europe, and Asia 1–8 . The life cycle of Mesocestoides sp.…”

“…Peritoneal infection occurs in the final host when infective larvae penetrate the intestinal wall and enter the peritoneal cavity and abdominal organs 10 . Peritoneal larval cestodiasis is an uncommon, but likely underdiagnosed, condition that can cause severe disease and death in dogs and cats 5–8,10,11,13–15 . Blood and fecal examinations are usually not useful for diagnosis, and several authors have suggested that cytology and polymerase chain reaction (PCR) of larval tissues are essential for in vivo diagnosis 10,11,16 .…”