Aetiology
The exact cause of neoplasms of unknown behaviour of skin (NUB) is unknown. It is thought to be a result of genetic mutation or changes in the microenvironment of the skin.
Diagnosis
NUB can be diagnosed by a physical examination of the affected area and a biopsy. The biopsy will help diagnose the exact type of neoplasm.
Differential diagnosis
Other skin conditions such as basal cell carcinoma, squamous cell carcinoma, melanoma, and dermatofibroma can be ruled out by the biopsy.
Treatment
Treatment of NUB depends on the type and location of the neoplasm. Surgery, chemotherapy, and radiation may be used to remove the neoplasm.
Prognosis
The prognosis for NUB is variable, depending on the type and location of the neoplasm. Early diagnosis and treatment can improve the prognosis.