[Extramammary Paget's disease can easily be overlooked]

Extramammary Pagets disease (EMPD) is a rare cancer and is often mistaken for benign dermatologic disorders such as eczema or psoriasis. The cancer is mostly primary but can be secondary to another cancer. EMPD is treated by surgical excision but a prolonged diagnostic process can have consequences for the patient due to spread of the primary tumour or growth and spread of the associated cancer. EMPD should be considered as a differential diagnosis in patients, who do not respond to local treatment of skin lesions. Since the cancer can be secondary to other cancers, patients should be assessed with a PET-CT scan.