The image shows a well-demarcated, annular (ring-shaped) lesion on the skin.
This lesion has a raised, erythematous (red), and scaly border with central clearing.
These are the classic pathognomonic features of Tinea Corporis, commonly known as ringworm of the body.
Why Other Options Were Wrong
Option B: Tinea Pedis, or athlete's foot, affects the feet, particularly the soles and the spaces between the toes. The image clearly shows a lesion on a different body part, likely the trunk or a limb.
Option C: Tinea Capitis is a fungal infection of the scalp. It presents with scaly patches, inflammation, and often hair loss (alopecia). The lesion in the image is on skin with fine hairs, not the scalp.
Option D: Tinea Unguium, also known as onychomycosis, is a fungal infection of the nails. It causes nails to become thickened, discolored (yellow/white), and brittle. The image shows a skin lesion, not an affected nail.
Related Visual
Visual 1: Infographic - A diagram illustrating the different types of tinea infections (corporis, pedis, capitis, cruris, unguium) and their typical locations on the human body.
Visual 2: Close-up Diagram - A labeled image of a Tinea Corporis lesion, highlighting the 'active, scaly border' and 'central clearing' to reinforce key diagnostic features.
Clinical Relevance
Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of dermatophyte (fungal) infections based on clinical presentation as background academic context rather than a clinical decision trigger.
Nurses play a crucial role in educating patients about tinea infections, including proper hygiene (keeping the area clean and dry), medication adherence (completing the full course of topical or oral antifungals), and preventing transmission to others (avoiding sharing towels, clothing, or combs).
It is important to differentiate tinea from other skin conditions like eczema or psoriasis, as the treatment is different. Misdiagnosis and treatment with topical steroids can worsen the fungal infection, leading to a condition called 'tinea incognito'.
What if? If the patient was a young child and the lesion was on the scalp with associated hair loss, the diagnosis would shift to Tinea Capitis. This is clinically significant because Tinea Capitis almost always requires systemic oral antifungal medication (like griseofulvin or terbinafine) for a cure, as topical treatments alone are insufficient.
How to Approach the Question
First, carefully examine the image provided. Note the key characteristics of the lesion: its shape (annular/ring-like), color (red/erythematous), texture (scaly), and any other features like a raised border or central clearing.
Next, consider the location of the lesion on the body, as suggested by the surrounding skin and hair.
Read the options provided. Each option is a specific type of tinea infection named for the body part it affects.
Systematically match your visual observations from the image to the known clinical presentations of each option.
Tinea Corporis affects the 'body'. The image shows a classic 'ringworm' lesion on the skin, matching this diagnosis.
Eliminate the other options by recalling their specific locations: Tinea Pedis (feet), Tinea Capitis (scalp), and Tinea Unguium (nails), none of which match the image.
Concept Tested & Keywords
Concept Tested: Identification of dermatophyte (fungal) infections based on clinical presentation.
Stem keywords: Identify, Image
Lead-in keywords: Identify
Clinical cues: The visual cue is a ring-shaped, erythematous, scaly lesion, which is a classic sign of Tinea Corporis.
Question ID
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Practise the full NORCET 3 - 2022 (Shift-1)
Attempt every question from this paper in a timed mock, then review the full solution for each one.