• Investigative Magnetic Resonance Imaging
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• v.20 no.4
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• pp.264-268
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• 2016

Benign fibrous histiocytoma (BFH) is a rare benign primary skeletal tumor that occurs commonly in the long bones, spine and pelvis. BFH constitutes a diagnostic challenge because it shares clinical background, radiological characteristics, and histological features with other fibrous lesions such as non-ossifying fibroma, giant cell tumor. We present a case of BFH with cystic change that occurred in the distal femur. We did not identify any case of BFH with cystic change involving the majority of the lesion that occurred in the metaepiphysis of the long bone.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.13 no.3
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• pp.346-353
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• 1991

Fibrous histiocytomas are commonly occurred in the skin of the extremeties and rare in the head and neck region. Fibrous histiocytomas in general are considered benign tumors. But deep fibrous histiocytomas have more poor prognosis than cutaneous counterparts and tendency of local invasion and recurrence. Wide surgical excision is the treatment of choice due to high recurrence rate and potential malignancy. We presented a rare case of benign fibrous histiocytoma occurred in the superficial lobe of the right parotid gland, showing palpable mass with pain.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.41 no.5
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• pp.270-272
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• 2015

Benign fibrous histiocytoma (FH) is a benign tumor composed of fibroblasts and histiocytes in varying proportions. This tumor is usually found in adult extremities but rarely occurs in deep soft tissues of the oral cavity. As it is difficult to diagnose with physical and radiologic exams, deep benign FH can only be diagnosed by histopathology. We report a case of a 36-year-old female patient who came to our department with painless swelling in the right buccal mucosa. This case report reviews the clinical, radiological, and histological aspects of this tumor.

• The Journal of the Korean bone and joint tumor society
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• v.5 no.3
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• pp.190-193
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• 1999

Benign fibrous histiocytoma is characteristically composed of fibroblastic and histiocytic cells. Most commonly, this tumor occurs in the dermis and superficial subcutis, but it is uncommon in the knee. We experienced a case of deep benign fibrohistiocytoma in a 38-year-old woman who complained of palpable tender mass on the medial aspect of the right knee. MR imaging findings included a well-delineated oval mass with low signal intensity on T1-weighted and high-signal intensity of T2-weighted images, as well as a marked peripheral contrast enhancement. Histopathologically, the lesion contained a mixture of fibroblastic and histiocytic cells that were often arranged in a cartwheel or storiform pattern and accompanied by varying numbers of inflammatory cells, foam cells, and siderophages. After surgical removal of the lesion, no recurrence was observed.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.30 no.4
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• pp.399-403
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• 2008

Benign fibrous histiocytoma(BFH) is a mesenchymal cell-originated tumor composed of cells with fibroblastic and histiocytic differentiation. BFH occurs predominantly on sun-exposed skin of extremities. Oral BFH lesions are uncommon. The majority of oral lesions includes the soft tissue but not the jaw bones. The lesion appears as well-defined multilocular radiolucencies associated with bony swelling when it occurs on the jaw. The lesion induces the thinning and expansion of the cortex and shows many thin, indistinct septa in the lesion. Surgical excision is the choice of treatment. The recurrence rate is low and metastasis has not been reported. We report the clinical, radiographic and microscopic findings of a BFH case occurred in the mandible with literature reviews.

• The Journal of the Korean bone and joint tumor society
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• v.8 no.2
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• pp.43-47
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• 2002

Benign fibrous histiocytoma of the infrapatella fat pad is very rare. We report one case of the benign fibrous histiocytoma involved between the patella fat pad and synovium. Diagnostic arthroscopic procedure was performed to investigate the retrobulging shape of synovium without specific synovial changes, and there was no meniscal structural deformity and abnormality of joint motion. The lesion was completely resected. At 24 monthes follow-up was performed, and the function of knee was to be sufficient.

• The Journal of the Korean bone and joint tumor society
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• v.18 no.2
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• pp.94-98
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• 2012

Benign fibrous hitiocytoma of the infrapatella fat pad is very rare. It has usually do not induced a pain or a symptom because it was located deep tissue. So it was very difficult to be diagnosed. We experienced a case of deep benign fibrous histiocytoma in a 53-year-old woman. It was diagnosed by MRI. Diagnostic arthroscopic procedure was performed and the lesion was completely resected by open excision. We report a rare case of benign fibrous hitiocytoma presenting as an intra-articular tumor in the joint causing pain and limitation of movement.

• The Korean Journal of Oral and Maxillofacial Pathology
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• v.42 no.5
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• pp.135-143
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• 2018

Undifferentiated pleomorphic sarcoma (UPS) in the mandible region is a rare malignant neoplasm. We encountered the case of a patient who had been diagnosed with deep benign fibrous histiocytoma (DBFH) prior to surgery, but the final biopsy revealed the presence of tumor tissues in the resected margin, which indicated a UPS. Therefore, radiotherapy was conducted post-operatively, but the tumor recurred approximately 3 years later and a second surgery was performed. The difference between the initial and final diagnoses was considered to be due to the characteristics of the tumor, as it involved both benign and malignant components. DBFH and UPS can occur in young women. DBFH can transform to a malignancy and UPS may also appear as a benign tumor during early biopsy. Hence, attention should be paid to diagnosis and treatment methods, and ongoing close observation is required.

• Journal of Chest Surgery
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• v.43 no.4
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• pp.454-457
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• 2010

A 42 year old male was admitted for a bony mass on the posterior arc of the left $6^{th}$ rib, which was detected in a multiphasic health screening test. According to the chest computed tomography scan and bone scan, osteochondroma was suspected. He underwent VATS rib resection. There was no vessel or nerve injury. The patient was discharged without any complication on the $4^{th}$ post operative day. The pathological diagnosis was benign fibrous histiocytoma. Generally, posterolateral thoracotomy is needed for rib resection, but we found that there was no difficulty in doing this kind of surgery under a thoracoscopic approach, which has the advantage of better cosmesis.

• Journal of Chest Surgery
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• v.22 no.2
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• pp.297-304
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• 1989

A 45-year old woman with congestive heart failure due to left atrial tumor was operated on. Three tumor masses arising from posterior wall, atrial septum, anterior portion of mitral valve were resected. Pathological diagnosis was malignant fibrous histiocytoma [MFH]. Above one case and sixteen previous reports are reviewed. Eleven cases out of 17 were females. The tumors all originated primarily in the left atrium and 8 had distant metastases. The metastatic sites are lung [4 cases], brain [2 cases], liver, jejunum, cervix and pleura etc. Careful pathologic study is necessary to differentiate the uniformly fatal MFH of the heart from the more common benign atrial myxoma. The treatment modalities are surgical resection, chemotherapy, and radiation therapy & the prognosis of intracardiac MFH is poor. We underwent partial resection of left atrial MFH and obtained symptom relief and patient still alive 7 months post-operatively in state of NYHA class II.