Splenomegaly - Atlas of swine pathology

Splenomegaly

Where: lymphatic system, spleen

Possible causes: ErysipelaSalmonellosisClassical Swine FeverAfrican swine fever

Lesion found in a fattening pig at an abattoir. The spleen is very enlarged, congested and with adhesions of the omentum. Upon sectioning there was abundant dark red blood (bloody spleen). This lesion is secondary to compromised vasculature, both in the blood vessels that enter and exit the spleen. The most common causes of a bloody spleen are congestion (torsion of the stomach in which the spleen becomes trapped, splenic twisting, euthanasia with barbiturates, anaesthesia and sedation), classical swine fever, African swine fever, portal hypertension and splenic vein thrombosis.

Enlarged, but not congestive spleens are normally called “meaty” spleens due to their firm texture and consistency. This condition normally comes as the result of cell proliferation, especially macrophages from the red pulp, and of the increase in phagocytosis, as it happens, for example, in the case of bacteremias (salmonellosis or erysipelas) and neoplasias (lymphoma).

Eva Soares
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

tonsils

musculoskeletal system

nervous system

other

respiratory system

lungs

nasal cavity

skin and subcutaneous tissue

Disease

Diseases caused by bacteria

App

Clostridium difficile

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

Mycoplasma arthritis

Pasteurellosis

Postpartum Agalactia Syndrome

Salmonellosis

Streptococcal infections

Swine dysentery

Tetanus

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

Porcine epidemic diarrhea

Porcine parvovirus infection

Porcine respiratory coronavirus

PRRS

Rotavirus infection

Swine pox

Swine vesicular disease

Teschen disease

Transmissible gastroenteritis

Vesicular exanthema

Diseases caused by parasites

Ascariasis

Coccidiosis

Cryptosporidiosis

Lice infestation

Mange

Metastrongylosis

Trichinellosis

Trichuriasis

Nutritional deficiencies

Biotin deficiency

Iron deficiency anemia

Mulberry heart disease

Osteoporosis, ricketts, Vit D deficiency

Toxicoses

Aflatoxicosis

Ergotism

Fumonisin toxicosis

Salt poisoning

Vomitoxicosis

Zearalenone toxicosis

Other

Atresia ani

Congenital Tremor

Epitheliogenesis imperfecta

Frostbite

Gastric ulcers

Hemorrhagic bowel syndrome

Hernias

Osteochondrosis

Other

Pityriasis rosea

Porcine stress syndrome

Rectal prolapse

Rectal stricture

Shoulder ulcers

Splay leg

Sunburn

Thrombocytopaenic purpura

Torsion of the stomach and the intestines

Uterine Prolapse

Vaginal and cervical prolapse

Vices

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