Pathology and Immunology Flashcards
What are the type types of autopsy?
- Hospital
- Medico-legal
What deaths are referred to the coroner?
Presumed natural - cause of death not known, not seen doctor in last 14 days
Presumed iatrogenic - peri/postoperative, anaesthetic deaths, abortion, complication of therapy
Presumed unnatural - accidents, industrial death, unlawful killing, neglect, custody deaths, war
Who makes referrals to coroner?
Doctors Registrar of BDM Relatives Police Anatomical pathology technician Other properly interested parties
Who performs autopsies?
Histopathologists = hospital autopsies, coronial autopsies
Forensic pathologists = coronial autopsy
What is the role of the coronial autopsy?
- Who was the deceased?
- When did they die?
- Where did they die?
- How did they die?
What does an autopsy consist of?
- History/Scene
- External examination
- Evisceration
- Internal examination
- Reconstruction
What does an external examination consist of in an autopsy?
Identification ( formal, body modification, gender, jewellery, clothing) - WHO
Disease and treatment - WHY
Injuries - WHY ME
What does evisceration consist of?
- Y shaped incision
- Open all body cavities
- Examine all organs in situ
- Remove thoracic and abdominal organs
- Remove brain
What does the internal examination consist of?
Heart and great vessels
- Lungs, tracheal, bronchi
- Liver, gallbladder, pancreas
- Spleen thymus and lymph nodes
- Genitourinary tract
- Endocrine organs
- Central nervous system
What is a coronial autospy
The coronial autopsy is a systematic scientific examination that helps the coroner determine who the deceased was, when and where they died and how they came about their death.
Who instructs the majority of autopsies?
Medico-Legal authority
When is inflammation good and when is it bad?
Good - infection and injury
Bad - autoimmunity
What are the classifications of inflammation?
ACUTE:
- sudden onset
- short duration
- usually self resolving
CHRONIC:
- slow onset or sequel to acute
- Long duration
- may never resolve
Name the cells involved in inflammation?
Neutrophil polymorphs Macrophages Lymphocytes Endothelial cells Fibroblasts
Describe neutrophil polymorphs in inflammation?
Short lived, usually first on the scene and die at the scene, attract other inflammatory cells such as macrophages
Describe macrophages in inflammation?
Long lived cells, phagocytic properties, ingest bacteria and debris, may carry debris away, may present antigen to lymphocyte
Describe lymphocytes in inflammation?
Long lived (years) produce chemicals which attract in other inflammatory cells, immunological memory
Describe endothelial cells in inflammation?
Line blood vessels, make become sticky in areas of inflammation and inflammatory cells adhere to them, become porous to allow inflammatory cells to pass into tissues
Describe fibroblasts in inflammation?
Long lived cells, form collagen in areas of chronic inflammation and repair
What would a group of macrophages surrounded by lymphocytes be?
A granuloma
What is used to treat inflammation?
NSAIDS - inhibit prostaglandin synthase
Define: resolution?
Initiating factor removed, tissue undamaged or able to regenerate
Define: Repair?
Initiating factor still present, tissue damaged and unable to regenerate - replacement of damaged tissue by fibrous tissue, collagen produced by fibroblasts
e.g.
Heart after MI
brain after CI
Name some cells that do regenerate?
hepatocytes pneumocytes all blood cells gut epithelium skin epithelium osteocytes