Definition Erythema Multiforme (EM): an acute, immune-mediated skin reaction characterized by target lesions. Often self-limiting but can be recurrent. Two…
Definition Tinea infections (dermatophytoses): superficial fungal infections caused by Trichophyton, Microsporum, and Epidermophyton species. Classified by body site: Tinea capitis…
Definition Impetigo: superficial bacterial skin infection, commonly affecting children. Characterized by pustules, vesicles, or honey-colored crusts, usually on the face…
Definition Folliculitis: inflammation of the hair follicles, usually due to infection, irritation, or obstruction. Typically presents as small, erythematous papules…
Overview Both acne vulgaris and rosacea are common facial skin conditions but have distinct etiologies, age groups, and treatments. Recognising…
Definition Molluscum contagiosum (MC): a benign, self-limiting viral skin infection caused by molluscum contagiosum virus (MCV), a poxvirus. Characterized by…
BCC vs SCC vs Melanoma Feature Basal Cell Carcinoma (BCC) Squamous Cell Carcinoma (SCC) Malignant Melanoma Origin Basal cells of…
Definition Basal Cell Carcinoma (BCC): most common non-melanoma skin cancer, originating from basal cells of the epidermis. Rarely metastasizes but…
Definition Malignant melanoma: aggressive melanocyte-derived skin cancer with high potential for metastasis. Most serious form of skin cancer; early detection…
Definition Seborrheic dermatitis (SD): chronic, relapsing, inflammatory skin condition affecting sebaceous-rich areas. Characterized by erythematous, greasy, yellowish scales. Often mildly…
Definition Atopic dermatitis (AD) is a chronic, relapsing inflammatory skin condition associated with pruritus, dry skin, and eczema, often linked…
Definition Psoriasis: chronic, immune-mediated inflammatory skin disorder characterized by well-demarcated, erythematous plaques with silvery scales. Commonly involves extensor surfaces, scalp,…