အရေပြားမှန်ဘီလူး ကြည့်ခြင်း

• Examination of the skin by using dermatoscope, which is the high quality magnifying lens with a powerful built-in lighting
• Also called epiluminoscopy or epiluminescent microscopy
• mainly used in pigmented skin lesions by evaluation of colors and microstructures of the epidermis, and papillary dermis
• Accuracy of clinical diagnosis is 60%

Role of dermatoscope

• Easy to diagnose melanoma
• focus on the changes in vascular patterns, vascular structures, colors, follicular abnormalities
• CASH (color, architecture, symmetry, and homogeneity)

Dermoscopy is useful in following case diagnosis:

(1) Melanoma/melanocytic nevi

(2) Basal cell carcinoma

Classical algorithm

• lack of pigment network and the presence of at least one of the following criteria: ulceration, maple-leaf like structure, blue-gray globules, blue-ovoid nests, arborizing vessels and spoke-wheel structures. 

Non-classical algorithm

• superficial BCC such as pink-white areas, concentric structures, multiple erosions, multiple in-focus blue-gray dots and fine vessels

(3) Seborrheic keratosis

(4) Squamous cell carcinoma (including Bowen’s disease)

(5) Pityriasis versicolor

Dr. Aye Min Htoo

Dermatologist