Diffuse, purulent inflammation of a tissue is called?

AIIMS Nagpur NO - 2018

Medical Surgical Nursing

Easy

Appeared in: AIIMS Nagpur NO - 2018

Explanation

Cellulitis is defined as a diffuse inflammation of soft tissues, often caused by bacteria that release spreading factors like hyaluronidase.
The term 'diffuse' is critical, as it signifies that the inflammation is not contained or localized but spreads through tissue planes.
This condition typically presents as an area of red, warm, swollen, and painful skin with indistinct borders.
While it can be purulent (containing pus), its primary characteristic is the spreading nature of the inflammation.

Option A: An abscess is a localized, not diffuse, collection of pus that is walled-off within a cavity. This contradicts the 'diffuse' nature described in the question.
Option C: A boil, or furuncle, is a localized infection that begins in a hair follicle. It is a type of small abscess and is, by definition, not diffuse.
Option D: An ulcer is a local defect or excavation on the surface of a tissue or organ, resulting from the shedding of inflamed necrotic tissue. It is a loss of tissue, not a diffuse inflammation within the tissue.

Visual 1: Diagram - A comparative illustration showing the cross-section of skin for cellulitis, an abscess, and a boil. This helps visualize how cellulitis is a widespread inflammation within the dermis and subcutaneous fat, whereas an abscess is a contained pocket of pus.
Visual 2: Clinical Photograph - An image of a lower limb with cellulitis, highlighting the diffuse erythema (redness) and swelling with poorly defined borders, which are classic signs.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differentiation of skin and soft tissue inflammatory conditions as background academic context rather than a clinical decision trigger.
Early diagnosis and treatment of cellulitis are vital to prevent the infection from spreading through the bloodstream (sepsis) or to deeper tissues (necrotizing fasciitis).
Nursing interventions include administering prescribed antibiotics, elevating the affected limb to reduce swelling, managing pain, and monitoring for signs of worsening infection. Marking the edges of the erythema with a pen is a common practice to track the spread or resolution of the infection.
What if? - If the patient was diabetic and the inflammation was on the neck and loculated (divided into small cavities), the condition would more likely be a carbuncle, which is a more severe form of abscess and often requires surgical intervention.

How to Approach the Question

First, identify the key descriptive terms in the question stem: 'diffuse' and 'purulent inflammation'.
Understand that 'diffuse' means spreading and not localized or contained.
Evaluate each option based on this primary characteristic.
An 'abscess' is a localized collection of pus, so it can be eliminated.
A 'boil' is also a localized infection (a type of abscess), so it can be eliminated.
An 'ulcer' is a surface defect or tissue loss, not a diffuse inflammation within the tissue, so it can be eliminated.

Concept Tested & Keywords

Concept Tested: Differentiation of skin and soft tissue inflammatory conditions.
Stem keywords: Diffuse, purulent inflammation, tissue
Lead-in keywords: is called
Negative lead-in flag: false

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