What should you know about nodular basal cell carcinoma?

This type of basal cell carcinoma begins in basal cells in the outer skin. It may look like a pearly or skin-coloured bump, sometimes with visible small blood vessels, crusting, or an ulcerated centre. It commonly develops on sun-exposed skin, and [Sun-Damaged Skin](/conditions/photoaging/) is a relevant part of the clinical history.

Appearance cannot establish the diagnosis. A dermatologist may examine the lesion with magnification and take a biopsy. The report helps show the tumour type and whether the planned treatment is suitable.

Treatment is chosen according to size, depth, site, borders, and whether the lesion has returned. Options can include [Surgical Excision](/treatments/surgical-dermatology/excisional-surgery/) or tissue-sparing [Mohs Surgery](/treatments/surgical-dermatology/mohs-surgery/). Selected superficial lesions may be treated with [Photodynamic Therapy](/treatments/laser-and-energy/photodynamic-therapy/) or [Imiquimod Treatment](/treatments/medical-dermatology/imiquimod-therapy/); [Radiotherapy](/treatments/radiation-oncology/radiotherapy/) may suit particular situations. Keep the biopsy site clean as instructed and protect treated skin from sun.

Arrange a dermatology review for a shiny nodule, a sore that repeatedly crusts or bleeds, or a spot that slowly enlarges. Seek urgent advice for heavy bleeding, rapidly increasing redness, fever, or severe pain after a procedure. Earlier assessment can clarify the diagnosis before the lesion extends into nearby tissue.

Ask what the biopsy shows, whether the tumour has clear borders, which procedure best preserves nearby structures, how the wound will heal, and what follow-up plan is appropriate.