نتایج جستجو برای: dermatofibroma
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Collision tumors consist of two different neoplasms occurring concurrently in the same lesion. This association has been described for both benign and malignant neoplasms that may be difficult to identify. Therefore, dermoscopy is a valuable tool to make a correct diagnosis. We report a very unusual collision tumor composed of both a dermatofibroma and a melanocytic nevus mimicking melanoma.
Benign fibrous histiocytoma or dermatofibroma is one of the most common types of benign, cutaneous, soft tissue tumors, most often found in the middle-aged adults. The diagnosis of dermatofibroma/benign fibrous histiocytoma is usually straightforward if the typical morphological features are present. However, some diagnostic difficulties may arise when one is dealing with some unusual morpholog...
Aneurysmal fibrous histiocytoma is a different variant of dermatofibroma, characterized by blood-filled spaces within the fibroblastic tumor. In addition to the typical features of a dermatofibroma, it contains large cleft-like or cavernous blood-filled spaces with numerous hemosiderin pigments. This tumor accounts for less than 2% of all fibrous histiocytomas, and it is typically known to occu...
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