This update on keratinocyte cancers, formerly known as nonmelanoma skin cancers, incorporates changes from the 2019 revision of the Cancer Council Australia guidelines on diagnosis and management.

Discoid eczema is a rash characterised by disc-shaped plaques. Management includes avoiding triggers and using emollients and topical corticosteroids.

Infectious rashes and infestations are common in childhood. The key to diagnosis is a positive culture or scraping, which can help guide treatment decisions.

Although most birthmarks are small and harmless, some can cause impairment or signify an underlying abnormality, and a few have malignant potential.

Folliculitis is a common disorder that causes inflammation of the hair follicle. The mainstays of treatment include good hygiene and grooming, alongside antibiotics or antifungals, depending on the causative agent and subtype.

A 54-year-old woman presents with a gradually progressive blistering eruption. What is the diagnosis and management?

A 48-year-old woman presents with a history of itchy papules. What is the diagnosis?