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A dermatofibroma, or benign fibrous histiocytomas, is a benign nodule in the skin, typically on the legs, elbows or chest of an adult. [3] It is usually painless. [3] It usually ranges from 0.2cm to 2cm in size but larger examples have been reported. [3] It typically results from mild trauma such as an insect bite. [3]
Dermatofibrosarcoma protuberans begins as a minor firm area of skin most commonly about to 1 to 5 cm in diameter. It can resemble a bruise, birthmark, or pimple. It is a slow-growing tumor and is usually found on the torso but can occur anywhere on the body. [7] About 90% of DFSPs are low-grade sarcomas.
They can grow in all organs, arising from mesenchyme tissue. The term " fibroblastic " or "fibromatous" is used to describe tumors of the fibrous connective tissue . When the term fibroma is used without modifier, it is usually considered benign , with the term fibrosarcoma reserved for malignant tumors.
Dermatofibroma (benign fibrous histiocytoma, dermal dendrocytoma, fibrous dermatofibroma, fibrous histiocytoma, fibroma simplex, histiocytoma, nodular subepidermal fibrosis, sclerosing hemangioma) Dermatofibrosarcoma protuberans; Desmoid tumor; Diffuse cutaneous mastocytosis; Diffuse infantile fibromatosis
The term fibromatosis refers to a group of soft tissue tumors [1] which have certain characteristics in common, including absence of cytologic and clinical malignant features, a histology consistent with proliferation of well-differentiated fibroblasts, an infiltrative growth pattern, and aggressive clinical behavior with frequent local recurrence.
A fatal virus has been discovered in shrews in Alabama, sparking concerns about potential contagion to humans. The Camp Hill virus was discovered by researchers at The University of Queensland.
Gardner fibroma (GF) (also termed Gardner-associated fibroma [1]) is a benign fibroblastic tumor (i.e. a tumor containing fibroblasts, the most common cell type in connective tissue). GF tumors typically develop in the dermis (i.e. layer of skin underneath the epidermis ) and adjacent subcutaneous tissue lying just below the dermis. [ 2 ]
A year or two ago, chances are you’d never given much thought to the concept of “seed oils.” But in 2025, they’re becoming harder to ignore. It’s even become the stuff of online parody ...