BACKGROUND Benign and malignant fibrous histiocytoma present with a considerable difference concerning cellular organization in their vicinity. OBJECTIVE Normally appearing epithelium covers the malignant form in contrast to hyperplastic epidermis for benign tumors. It is an open question as to whether the tumor-associated fibroblasts are capable to affect phenotypic features of normal kerati...

Primary benign fibrous histiocytoma (BFH) at the skull is extremely rare. Here we report a case of a 22-year-old man presented with a 1-year history of progressive enlargement subcutaneous mass on the right side of the fronto-temporo-parietal region without symptoms. The tumor was radical resected through craniotomy and the bone defect was repaired by pre-plasticity titanium mesh. Histopatholog...

Malignant phyllodes tumor is usually diagnosed by the presence of benign duct-like epithelium and malignant mesenchymal tissue. In addition to the usual fibrosarcomatous features, the mesenchymal component may show areas resembling osteogenic sarcoma, chondrosarcoma, liposarcoma, leiomyosarcoma, rhabdomyosarcoma, malignant mesenchymoma, and, very rarely, malignant fibrous histiocytoma. We prese...

Benign fibrous histiocytoma is a rare tumor of nose and paranasal sinuses that originates from histiocytes. The main symptoms of patients are nasal obstruction and nasal mass. Our patient was presented with chief complaints of nasal obstruction and rhinorrhea non responsive to antibiotic treatment. In computed tomography scan a giant mass in left maxillary sinus and ipsilateral nasal cavity was...

The benign fibrous histiocytoma or fibrohistiocytoma is a benign neoplasm involving fibroblasts and histiocytes. The tumor occurs most often in the skin of the extremities, rarely commits deep soft tissues and parenchymal organs. The diagnosis can be very difficult and is histologically confirmed only. We present a case of a male patient of 14 months old, who presents with ascites due an unrese...

Benign fibrous histiocytoma is a rare and usually painless oral neoplasm found in adults that may affect either soft tissue or bone typically noted in their fifth decade. This case was found in a 32 year-old Caucasian male who presented with a fairly well circumscribed unilocular radiolucent lesion extending from the mandibular right first incisor to the left first premolar and reaching the inf...