Acute Inflammation Overview
45 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary cause of abscess formation?

  • Fungal infection
  • Inflammatory response to injury
  • Bacterial toxin
  • Staphylococcus aureus secreted coagulase (correct)

Which of the following correctly describes the pathological features of an abscess in its later stages?

  • Three zones: necrotic core, mid-zone of pus, and a peripheral fibrin pyogenic membrane (correct)
  • Presence of two distinct zones
  • Abscess devoid of necrotic tissue
  • Only a peripheral zone of inflammatory cells

What is a common fate of a small abscess?

  • Formation of chronic abscess
  • Immediate surgical intervention required
  • Spontaneous rupture with severe infection
  • Absorption of pus followed by healing (correct)

Which cell type is primarily attracted to the site of an abscess during its formation?

<p>Neutrophils (A)</p> Signup and view all the answers

What typically occurs if a large abscess is not surgically drained?

<p>Slow absorption of pus followed by spontaneous rupture (C)</p> Signup and view all the answers

Which of the following processes contributes to pus formation in an abscess?

<p>Neutrophil apoptosis and release of lysosomal enzymes (C)</p> Signup and view all the answers

What does the peripheral zone of an abscess consist of during its later stages?

<p>Fibrin forming the pyogenic membrane (A)</p> Signup and view all the answers

Which complication is most commonly associated with abscess formation?

<p>Spread of infection to surrounding areas (A)</p> Signup and view all the answers

What distinguishes suppurative acute inflammation from non-suppurative acute inflammation?

<p>Presence of pus (C)</p> Signup and view all the answers

Which of the following is NOT a type of localized suppurative acute inflammation?

<p>Cellulitis (C)</p> Signup and view all the answers

What is the primary composition of pus?

<p>Neutrophils and bacteria (A)</p> Signup and view all the answers

Which type of non-suppurative acute inflammation is characterized by the presence of excess clear fluid?

<p>Serous (A)</p> Signup and view all the answers

Which scenario describes necrotizing/gangrenous acute inflammation?

<p>Localized death of tissue along with pus (A)</p> Signup and view all the answers

What type of acute inflammation is indicated if there is significant fibrin present?

<p>Fibrinous (D)</p> Signup and view all the answers

Which of the following conditions can be categorized under diffuse suppurative acute inflammation?

<p>Suppurative appendicitis (C)</p> Signup and view all the answers

What is the main type of inflammation characterized by localized pus formation?

<p>Abscess (A)</p> Signup and view all the answers

Which organism is primarily associated with abscess formation?

<p>Staphylococcus aureus (A)</p> Signup and view all the answers

What characteristic distinguishes cellulitis from an abscess?

<p>Diffuse suppurative inflammation (A)</p> Signup and view all the answers

Which of the following is NOT a feature of an abscess?

<p>Extensive necrosis (B)</p> Signup and view all the answers

What enzyme is secreted by organisms causing abscesses to aid localization?

<p>Coagulase (A)</p> Signup and view all the answers

Which type of inflammation is characterized by excessive clear fluid?

<p>Serous inflammation (D)</p> Signup and view all the answers

In which tissue type does cellulitis primarily occur?

<p>Loose connective tissue (C)</p> Signup and view all the answers

Which characteristic of the pus in cellulitis contrasts with that of an abscess?

<p>Thin and sanguineous (B)</p> Signup and view all the answers

What is a common cause of fibrinous inflammation?

<p>Bacterial infection (D)</p> Signup and view all the answers

Which condition is associated with the secretion of hyaluronidase?

<p>Cellulitis (B)</p> Signup and view all the answers

What is the first step in the healing process of a small abscess?

<p>Absorption of pus (C)</p> Signup and view all the answers

Which complication of an abscess can lead to the formation of a keloid?

<p>Complications of healing (C)</p> Signup and view all the answers

What is a characteristic feature of a carbuncle?

<p>Multiple communicating abscesses (C)</p> Signup and view all the answers

Which complication involves a blind-ended tract connecting an abscess to the epithelial surface?

<p>Sinus (D)</p> Signup and view all the answers

What potential systemic complication can result from the spread of infection from an abscess?

<p>Septicemia (C)</p> Signup and view all the answers

Where are carbuncles most commonly located on the body?

<p>Scalp and back of the neck (D)</p> Signup and view all the answers

What is an example of a chronic complication of an abscess?

<p>Chronic lung abscess (B)</p> Signup and view all the answers

What type of complication arises from the rupture of an abscess in the brain?

<p>Rupture (C)</p> Signup and view all the answers

Which mechanism can lead to lymphatic spread of infection from an abscess?

<p>Direct enlargement of the abscess (A)</p> Signup and view all the answers

Which of the following is NOT considered a complication of healing from an abscess?

<p>Hemorrhage (A)</p> Signup and view all the answers

What is the primary definition of a furuncle?

<p>A small abscess related to hair follicles. (C)</p> Signup and view all the answers

In which areas is a furuncle most commonly found?

<p>On the legs of women and facial area of men. (A)</p> Signup and view all the answers

What type of bacteria causes cellulitis?

<p>Streptococcus hemolyticus (A)</p> Signup and view all the answers

Which of the following conditions is most likely associated with an increased risk of cellulitis?

<p>Diabetes (B)</p> Signup and view all the answers

What is the function of hyaluronidase in cellulitis?

<p>It acts as a spread factor. (C)</p> Signup and view all the answers

In addition to the legs and face, where else can cellulitis commonly occur?

<p>Subcutaneous tissue of the limbs and areolar tissue. (D)</p> Signup and view all the answers

What is a key characteristic of the subcutaneous tissue in relation to cellulitis?

<p>It is dense and tough due to fibrous septa. (B)</p> Signup and view all the answers

What role does streptokinase play in cellulitis?

<p>It dissolves fibrin and promotes infection spread. (B)</p> Signup and view all the answers

Which of the following statements about cellulitis is NOT true?

<p>Cellulitis is a localized infection. (A)</p> Signup and view all the answers

Which enzyme is NOT secreted by Streptococcus hemolyticus in the context of cellulitis?

<p>Collagenase (C)</p> Signup and view all the answers

Flashcards

Suppurative Inflammation

Acute inflammation characterized by pus formation.

Non-Suppurative Inflammation

Acute inflammation without pus formation.

Pus Composition

Thick, yellowish exudate containing neutrophils, necrotic material, bacteria, and fluid.

Abscess

Localized collection of pus.

Signup and view all the flashcards

Acute Localized Suppurative Inflammation

Inflammation limited to a specific area, creating pus.

Signup and view all the flashcards

Serous Inflammation

Acute inflammation characterized by the leakage of excess clear fluid.

Signup and view all the flashcards

Purulent Exudate

Thick exudate, including pus and other materials from the inflamed tissue.

Signup and view all the flashcards

Abscess Cause

Caused by Staphylococcus aureus and its coagulase enzyme leading to localized infection.

Signup and view all the flashcards

Abscess Pathogenesis

Pyogenic organisms cause tissue destruction, attract neutrophils, and lead to pus formation through lysosomal enzyme release.

Signup and view all the flashcards

Abscess Early Zones

Early abscesses have necrotic tissue and inflammatory cells in two zones.

Signup and view all the flashcards

Abscess Later Zones

Later abscesses have a necrotic core, pus mid-zone, and fibrin-based outer zone.

Signup and view all the flashcards

Small Abscess Fate

Small abscesses heal by pus absorption.

Signup and view all the flashcards

Large Abscess Fate

Large abscesses often rupture spontaneously or need surgical drainage to heal.

Signup and view all the flashcards

Abscess Complications

Abscesses can spread infection to surrounding areas.

Signup and view all the flashcards

Pyogenic Membrane

Fibrin forms a layer that helps to confine infection in an abscess

Signup and view all the flashcards

Abscess Fate (Small)

Pus is absorbed, leading to healing in a small abscess.

Signup and view all the flashcards

Abscess Fate (Large)

Large abscesses slowly absorb pus, then point, rupture, and heal, possibly needing drainage.

Signup and view all the flashcards

Abscess Spread (Direct)

Infection spreads directly in a large abscess.

Signup and view all the flashcards

Abscess Spread (Lymphatic)

Abscess spread via lymph system causing lymphangitis and lymphadenitis.

Signup and view all the flashcards

Abscess Spread (Blood)

Bloodstream spread can cause septicemia or pyaemia.

Signup and view all the flashcards

Abscess Healing Complications (Ulcer)

Ulcer is a break in epithelial surface from impaired healing after pus evacuation.

Signup and view all the flashcards

Abscess Healing Complications (Sinus)

Sinus is chronic abscess discharge forming a blind-ended passage to the surface.

Signup and view all the flashcards

Abscess Healing Complications (Fistula)

Fistula is a connection between two surfaces due to chronic abscess formation.

Signup and view all the flashcards

Carbuncle Definition

Multiple communicating deep subcutaneous abscesses opening on the skin.

Signup and view all the flashcards

Carbuncle Sites

Carbuncles are common where skin and subcutaneous tissues are thick and fibrous.

Signup and view all the flashcards

Furuncle

A small abscess around a hair follicle.

Signup and view all the flashcards

Cellulitis Location

Loose subcutaneous tissue, areolar tissue (e.g., orbit, pelvis), and limbs.

Signup and view all the flashcards

Cellulitis Cause

Streptococcus hemolyticus bacteria causing infection spread.

Signup and view all the flashcards

Hyaluronidase

Enzyme spreading infection.

Signup and view all the flashcards

Streptokinase

Enzyme dissolving fibrin, promoting infection.

Signup and view all the flashcards

Furuncle Location

Hairy skin, often legs or face.

Signup and view all the flashcards

Subcutaneous Tissue Compartments

Thick, tough tissue, divided by fibrous septa.

Signup and view all the flashcards

Cellulitis Risk Factors

Diabetes or reduced immunity.

Signup and view all the flashcards

Abscess

Collection of pus in a localized area.

Signup and view all the flashcards

Suppurative Inflammation

Inflammation with pus formation

Signup and view all the flashcards

Abscess Type

Localized inflammation, contained in a specific area.

Signup and view all the flashcards

Cellulitis Type

Diffuse inflammation, spreading through tissue.

Signup and view all the flashcards

Abscess Cause

Usually caused by Staphylococcus aureus bacteria.

Signup and view all the flashcards

Cellulitis Cause

Usually caused by Streptococcus haemolyticus bacteria.

Signup and view all the flashcards

Abscess Pathogenesis

Bacteria release enzymes causing fibrin clot formation, localizing it.

Signup and view all the flashcards

Cellulitis Pathogenesis

Bacteria release enzymes dissolving fibrin, letting it spread.

Signup and view all the flashcards

Serous Inflammation

Clear fluid buildup, poor in inflammatory cells and fibrin.

Signup and view all the flashcards

Fibrinous Inflammation

Inflammation with fibrin buildup, little fluid.

Signup and view all the flashcards

Abscess Pus

Thick, yellowish pus with few necrotic tissue.

Signup and view all the flashcards

Cellulitis Pus

Thin, reddish pus, lots of necrotic tissue.

Signup and view all the flashcards

Study Notes

Acute Inflammation

  • Acute inflammation is classified according to the presence or absence of pus.
  • Types: Suppurative/Purulent and Non-Suppurative/Non-Purulent
  • Pus is purulent, thick, turbid, yellowish inflammatory exudate.

Composition of Pus

  • Large number of neutrophils and pus cells
  • Liquefied necrotic material
  • Bacteria
  • Fluid exudates

Types of Acute Inflammation (Chart)

  • Suppurative (Purulent) - Includes pus
    • Localized - Abscess, Furuncle, Carbuncle
    • Diffuse - Cellulitis, Suppurative appendicitis, Diffuse septic peritonitis
  • Non-suppurative (Non-purulent) - No pus
    • Serous - Excess clear fluid
    • Fibrinous - Excess fibrin in fluid
    • Serofibrinous - Excess fibrin and fluid
    • Catarrhal - Excess mucus
    • Pseudomembranous - Fibrinonecrotic
    • Hemorrhagic - Blood vessel damage
    • Necrotizing/gangrenous - Severe tissue damage
    • Allergic

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Description

This quiz explores the concept of acute inflammation, focusing on its classification, types, and composition of pus. Understand the differences between suppurative and non-suppurative inflammation and their specific characteristics. Perfect for students studying pathology or related medical fields.

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser