Dermatofibrosarcoma protuberans is a soft tissue sarcoma that is dermal in origin. The incidence is <0.1% of all malignancies and 1% of soft tissue sarcoma. Most commonly, it involves trunk (62%) followed by extremities (25%) and head and neck (13%). It is a slow growing tumor with locally aggressive behavior. Here, a 50-year-old female diagnosed with orbital dermatofibrosarcoma developed extra...

INTRODUCTION Dermatofibrosarcoma protuberans is a rare neoplasm of soft tissues and its location in the breast is extremely uncommon. Confusion is possible with other primary breast lesions. CASE PRESENTATION A 75-year-old Caucasian woman presented with a mass in her left breast 21 years after being diagnosed with invasive ductal carcinoma of the right breast, treated by a right mastectomy an...

BACKGROUND Dermatofibrosarcoma protuberans is an uncommon, locally aggressive but rarely metastasizing tumor of the deep dermis and subcutaneous tissue. It may occur at almost any site but is most common in the trunk and extremities. Dermatofibrosarcoma protuberans of the breast has been rarely reported. CASE PRESENTATION A 49-year-old woman without a significant medical history presented wit...

Bednar tumor is an uncommon variant of dermatofibrosarcoma protuberans. Also known as pigmented dermatofibrosarcoma protuberans, this tumor is of intermediate grade. It is seen in adults and has a predisposition to affect the shoulder region. We report a rare case of Bednar tumor in a 40-year-old female patient. The diagnosis of Bednar tumor must be considered while reporting pigmented subcutan...

Dermatofibrosarcoma protuberans is a rare superficial tumor characterized by high rates of local recurrence and low risk of metastasis. Dermatofibrosarcoma protuberans occurs most commonly on the trunk and proximal extremities, it affects all races, and often develops between the second and the fifth decade of life. The tumor grows slowly, typically over years. We present a rare case of a young...

Dermatofibrosarcoma protuberans is a tumor of intermediate malignancy characterized by its aggressive local growth and marked propensity to recur after surgical excision. Many forms of the tumor has been reported. We report a pedunculated form of tumor. A 45-year-old woman felt a growing tumor on her trunk for 6 years but did not seek medical consultation until it had ulcerated 6 months ago. Sk...

Dermatofibrosarcoma protuberans is a rare soft tissue neoplasm arising from mesenchymal cells, making up about 6% of all soft tissue tumours. Often found on the scalp, neck, trunk and extremities, it has an intermediateto low-grade malignancy potential except the fibrosarcomatous variant (high-grade), which is more likely to metastasize than other types. Here we present the case of a 46-year-ol...

Dermatofibrosarcoma protuberans is a low-grade malignant tumor that grows invasively but rarely forms metastases. Its origin is still controversial. We characterized the synthesis of collagen in detail in cells which were obtained from dermatofibrosarcoma protuberans tumors by enzymatic tissue disintegration. Similar to fibroblasts, all tumor cell strains produced considerable amounts of collag...

Objective: To report a case series of dermatofibrosarcoma protuberans focusing on the clinical presentation and prognosis of this tumour. Patients and Methods: A total of 36 patients with confirmed histological diagnosis of dermatofibrosarcoma protuberans were retrieved from the database of Queen Elizabeth Hospital, Hong Kong from 1994 to 2007. Their demographic characteristics, clinical manife...