Atlas of pathology

Bronchopneumonia

Where: respiratory system, lungs

Caused by: Metastrongylosis

This is parasitic bronchopneumonia due to the specific lungworm of the pig, named Metastrongylus apri. These worms live in the bronchi and bronchioles of the pig lungs. Affected pigs may have poor body condition, with a deep chronic cough and difficulty breathing. At autopsy, the lungs and bronchial airway tree contain numerous 2 to 6 cm long thread-like worms inside the airways. The lung lobes may have moderate pneumonia, with dark purple consolidation, noticed at the outer edges of lobes. These adult M apri worms and their eggs and larvae produce an inflammation and irritant effect in the airways of the lungs, leading to a persistent cough. The life cycle of this worm is indirect, wherein the completion of the life cycle requires the intervention of earthworms on the ground. The life cycle is completed by pigs eating an earthworm that contains infective larvae inside it. Infection therefore only occurs where pigs have access to earthworms, for example in outdoor farms with open ground or orchards. This disease is still common in some areas where pigs kept outdoors. This is because the earthworm populations will retain the worms for long periods and pigs moving around on outdoor pastures are attracted by earthworms and will dig around trying to find them and eat them.

Steven McOrist
Where

cardiovascular system

digestive system

intestines

liver

mouth

stomach

genitourinary system

bladder

female genitourinay tract

kidney

male genitourinay tract

mammary gland

lymphatic system

lymph nodes

spleen

thymus

tonsils

musculoskeletal system

nervous system

other

respiratory system

lungs

nasal cavity

skin and subcutaneous tissue

Disease

Diseases caused by bacteria

App

Clostridium novyi

Clostridium perfringens

Mycoplasma suis

Actinobacillosis

Anthrax

Atrophic Rhinitis

Bordetelosis

Brucellosis

Colibacillosis

Colitis

Edema disease

Enzootic Pneumonia (EP)

Erysipela

Exudative Epidermitis

Glässer disease

Ileitis

Leptospirosis

Mycoplasmal arthritis

Pasteurellosis

Salmonellosis

Streptococcal infections

Swine dysentery

Tuberculosis

Yersinia infection

Diseases caused by virus

African swine fever

Aujeszky's disease

Blue eye disease

Classical Swine Fever

Encephalomyocarditis

Foot-and-mouth disease

Influenza

Japanese B Encephalitis

Nipah virus disease

Porcine circovirosis

Porcine cytomegalovirus infection

Porcine epidemic diarrhea

Porcine parvovirus infection

Porcine respiratory coronavirus infection

PRRS

Rotavirus infection

Transmissible gastroenteritis

Diseases caused by parasites

Ascariasis

Coccidiosis

Mange

Metastrongylosis

Trichinellosis

Trichuriasis

Other

Epitheliogenesis imperfecta

Frostbite

Gastric ulcers

Hernias

Osteochondrosis

Other

Pityriasis rosea

Prolapse of the vagina and cervix

Rectal prolapse

Rectal stricture

Shoulder ulcers

Splay leg

Sunburn

Thrombocytopaenic purpura

Torsion of the stomach and the intestines

Uterine Prolapse

Vice

Nutritional deficiencies

Biotin deficiency

Mulberry heart disease

Toxicoses

Aflatoxicosis

Ergotism

Fumonisin toxicosis

Zearalenone toxicosis