Introduction
Acne, also known as acne vulgaris, is a common skin condition that involves both inflammatory and non-inflammatory skin lesions. It is a persistent condition that mainly affects the hair follicles and sebaceous glands, leading to blockages and inflammation. Acne can appear as non-inflammatory or inflammatory lesions, or a combination of both, and usually affects the face, back, and chest.
Causes
The development of acne is attributed to four major factors:
Excessive Skin Cell Growth:
Abnormal proliferation of skin cells within hair follicles leads to blockages.
Sebum Overproduction:
An excessive production of sebum or skin oil.
Cuti bacterium acnes Activity:
The presence and activity of Cuti bacterium acnes, a type of bacteria that resides on the skin.
Inflammation:
Inflammatory processes contribute to the formation of acne lesions. Genetics also plays a crucial role in acne development.
Signs and Symptoms
Acne vulgaris can cause various local symptoms, including pain, tenderness, and erythema (redness). Systemic symptoms are typically absent, but in severe cases, they can lead to conditions like acne conglobata and acne fulminans, which involve systemic symptoms such as fever, joint pain, and malaise. Female patients with polycystic ovarian syndrome (PCOS) often seek dermatological care due to acne. PCOS, a condition with long-term complications like obesity, infertility, and malignancy, should be considered in cases of moderate-to-severe acne in adulthood, especially when accompanied by irregular menstruation. Acne can also have a psychological impact on patients, irrespective of its severity.
Acne primarily affects the face but can extend to the neck, chest, back, and other parts of the body. The lesions are centered around the pilosebaceous unit, encompassing the hair follicle and its associated oil gland. Various types of acne spots can occur, including open and closed comedones, papules, pustules, nodules, pseudocysts, excoriations, erythematous macules, pigmented macules, and different types of scars. These lesions have varying durations, with individual acne spots usually lasting less than two weeks, but deeper papules and nodules may persist for months. Oily skin, known as seborrhoea, is also common among acne patients.
Differentials
Medical professionals should differentiate acne vulgaris from other conditions such as acne conglobata, acne fulminans, acne keloidalis nuchae (AKN), acneiform eruptions, dermatologic manifestations of tuberous sclerosis, folliculitis, perioral dermatitis, rosacea, sebaceous hyperplasia, syringoma, and other skin disorders.
Acne Grading
Acne can be classified as mild, moderate, or severe, with separate considerations for comedones and inflammatory lesions.
Mild Acne:
Fewer than 20 comedones, fewer than 15 inflammatory lesions, or a total lesion count below 30.
Moderate Acne:
Between 20 and 100 comedones, 15 to 50 inflammatory lesions, or a total lesion count of 30 to 125.
Severe Acne:
Characterized by more than 5 pseudocysts, a total comedo count exceeding 100, a total inflammatory count surpassing 50, or a total lesion count exceeding 125.
Diagnosis
Diagnosing acne vulgaris involves assessing various features, including:
- Comedonal acne
- Mild acne
- Moderate acne
- Nodulocystic acne
- Polycystic ovarian syndrome (PCOS) – to be considered in female patients with specific symptoms
In challenging cases where antibiotic treatment is not effective, culture skin lesions may be necessary to rule out gram-negative folliculitis.
Treatment
Treatment for acne vulgaris targets the known factors contributing to the condition, including follicular hyperproliferation, excess sebum, C. acnes activity, and inflammation. The choice of treatment depends on the grade and severity of the acne.
Medications used in treating acne include:
- Acne products combining various active ingredients
- Retinoid-like agents
- Antibiotics, both oral and topical
- Selective aldosterone antagonists
- Androgen receptor inhibitors
- Estrogen/progestin combination oral contraceptive pills
When using antibiotics, it is advisable to combine them with benzoyl peroxide to minimize resistance development.
Nonpharmacotherapy
In addition to medications, nonpharmacologic approaches can be considered. Diet therapy, such as a low-glycemic diet and avoiding "junk foods," has been suggested as a nonpharmacological means of managing acne. Furthermore, there may be associations between specific dietary elements, like skim milk, and the occurrence of acne.
Procedures
Procedural treatments for acne vulgaris encompass:
- Manual extraction of comedones
- Intralesional steroid injections
- Superficial peels using glycolic or salicylic acid
- Light and laser therapy
Summary
In summary, acne vulgaris is a common and multifaceted skin condition that can affect individuals both physically and emotionally. Proper diagnosis and treatment tailored to the severity of the condition are essential for managing this dermatological issue effectively.
Writer|Author:
Dr.Mukhtiar Hussain
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