What should you know about BCC dermoscopy?

A dermatoscope combines magnification and controlled light so the examiner can see colours, vessels and structures that are difficult to assess with the naked eye. The examination is quick and does not cut the skin. It guides clinical judgement; it is not a laboratory test and cannot by itself settle every uncertain lesion.

Basal cell carcinoma can show branching surface vessels, blue-grey areas, shiny white structures, small erosions, ulceration, or leaf-like and spoke-wheel patterns under dermoscopy. The combination varies with the tumour subtype and whether the lesion contains pigment. Some benign growths and other skin cancers can share individual features, so the whole pattern and the clinical history matter.

BCC often presents as a slowly enlarging shiny bump, a persistent scaly patch, or a sore that repeatedly crusts, bleeds and fails to heal. Pigmented BCC may look brown, blue-grey or black. These appearances warrant assessment, but they do not allow a person to diagnose the lesion at home.

If the examination raises concern, the dermatologist may take a biopsy or remove the lesion and send tissue for microscopic examination. The pathology result can confirm whether BCC is present and identify features that influence treatment planning. The approach depends on the lesion’s site, size, borders, suspected subtype, previous treatment and the patient’s health.

Before the appointment, note when the spot appeared and whether it has changed, bled, crusted or become tender. Do not cover it with concealer immediately before examination. Mention previous skin cancers, immune-suppressing medicines and treatments already tried. Photographs taken over time can help show change when dates are clear.

Book a timely dermatology assessment for a spot that keeps bleeding or crusting, an open sore that does not heal, a shiny or scar-like area that enlarges, or any lesion with continuing change. Prompt review is also sensible when a growth sits near an eye, nose, lip or ear, where delayed treatment can make reconstruction more complex.

Contact the treating clinic after a biopsy if bleeding does not stop with firm pressure, pain or redness is increasing, pus appears, or fever develops. Follow the wound-care instructions given for the sampled area.

Ask which dermoscopic features are concerning, what else could have a similar appearance, and whether a biopsy is recommended. If tissue sampling is planned, ask how it will be performed, when to expect the result, how to care for the site, and which treatment options would be considered if BCC is confirmed.