It is marked by ulcerations (breaks on the skin or surface of an organ) and necrosis (death of living tissue) and usually presents a foul odor.
The characteristic malodorous smell is caused by dimethyl trisulfide.
[1] It is usually not a fungal infection but rather a neoplastic growth with necrosing portions.
There is a weak evidence that 6% miltefosine solution applied topically on superficial fungating breast lesions of less than 1 cm in size, on patients who received previous radiotherapy, surgery, hormonal therapy or chemotherapy for their breast cancer, may slow the disease progression.
[2] This article incorporates public domain material from Dictionary of Cancer Terms.