1 / 16

THE NECROPSY BOOK 4 th ed. King et al., CL Davis DVM foundation 164 - 185

THE NECROPSY BOOK 4 th ed. King et al., CL Davis DVM foundation 164 - 185. Dr. Park Nam-Yong. LIVER GROSS PATHOLOGY. DIFFUSELY ENLARGED LIVER (HEPATOMEGALY). Enlarged firm liver with round edges Terminal hypostasis from muscle and bowel’s blood Not a Congestion or hyperemia

annick
Télécharger la présentation

THE NECROPSY BOOK 4 th ed. King et al., CL Davis DVM foundation 164 - 185

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. THENECROPSY BOOK4th ed.King et al.,CL Davis DVM foundation164 - 185 Dr. Park Nam-Yong LIVER GROSS PATHOLOGY

  2. DIFFUSELY ENLARGED LIVER(HEPATOMEGALY) • Enlarged firm liver with round edges • Terminal hypostasis from muscle and bowel’s blood • Not a Congestion or hyperemia • Pale or congested with lymphoid neoplasia • Shiny mottled cut surface - amyloidosis

  3. CHRONIC PASSIVE CONGESTION(NUTMEG) LIVER • Mottled dark and light parenchyma • Large areas of dark mixed with light areas • Causes to look for- Severe lung disease Heart anomalies Chronic heart disease Caudal venacava thrombosis • Often noticed with, Aortic stenosis and Left heat lesions

  4. ACUTE FATTY LIVER(FATTY LIVER) Diffuse, distinctly yellow, swollen liver - Normal fatty liver Pale gray in acute anaemia Rounded edges Floats in water or formalin fixative Evidence for acute starvation Diabetes mellitus Pregnancy diseases Aflatoxin, Phosphorus poisoning Upset in dietary fat metabolism

  5. CHRONIC EMACIATION • Smaller and darker liver than normal • Liver is half of its normal size • Portal triad bile ducts increased in number • Horse – check teeth, If there is no other reason

  6. ANEMIA A diffuse pale liver Slight grayish tinge to the capsular surface Liver that sinks in water

  7. HEPATIC HYPOSTASIS( DIFFUSE BLOODY LIVER) • At necropsy, often an artifact or normal finding • In fresh necropsy, blood excessive • Also occurs in lung, kidneys and other tissues

  8. PROMINENT LOBULAR PATTERN • Each and every lobule – distinct • Paler portal area around • Darker central vein • Prominent in cats and horse - normal

  9. THEILER’S DISEASE“serum sickness” • Small, dark, pale liver • Flabby with “wet dishrag” consistency • Seen in jaundiced horse with nervous signs • Has a history of injection with Tetanus anti toxin within last 1 – 3 months • Histologically – massive liver necrosis

  10. POSTMORTEM DECOMPOSITION • Large,pale,discrete areas with gas bubbles • Many closely involve the hilar area • No inflammatory reaction around them • Most float in water

  11. Guess who is this? Miss world Aishwarya Rai

  12. SCATTERED MULTIFOCAL TO DIFFUSE HEPATIC SCARRING(ASCARID INDUCED MILK SPOTTED LIVER) • Pig – multiple pale white spots, looks like a milk drop on the surface • Due to Ascaris lumbricoides or Stephanurus sp. Larval migration • Although severe cases only few larvae found histologically

  13. FIBROSIS OF LIVERA. POST NECROTIC SCARRING • A large coarsely nodular liver • Marked irregular bands or stellate scars of c.t. scattered • Connective tissue- acute massive damage to parenchyma

  14. FIBROSIS OF LIVERB. CIRRHOSIS • A diffusely, uniformly firm liver, with thickened capsules • Increase of connective tissue in the cirrhotic area • Chronic biliary cirrhosis - liver green tinge • Cardiac cirrhosis due to heart anomalies& Vitamin E/Se deficiency – horse, ox, sheep and goat

  15. SOLID HEPATIC MASSES • Dissected, cultured and histologically examined for definitive diagnosis • Lymphosarcomas : Usually white in color, but often yellow - green in dry necrotic centers. • Hemangiosarcomas – blood filled 1-2mm to 10-20 cm masses • Similar masses may be seen in spleen, right atrium and lungs.

  16. THANK YOU THANK YOU THANK YOU

More Related