• Benign fibrous histiocytoma is a benign tumor composed of a mixture of fibroblastic and histiocytic cells. (alliedacademies.org)
  • The most important diagnostic distinction is the separation of this tumor from aggressive forms of fibrohistiocytic neoplasms like dermatofibrosarcoma protuberans and malignant fibrous histiocytoma. (alliedacademies.org)
  • Types include: benign fibrous histiocytoma: This tumor has also been termed benign fibrous histiocytomas of the skin, superficial/cutaneous benign fibrous histiocytomas, common fibrous histiocytoma, and more recently dermatofibroma. (wikipedia.org)
  • malignant fibrous histiocytoma: This tumor is now termed undifferentiated pleomorphic sarcoma (UPS) because more recently developed immunohistochemistry and cytogenetic analyses suggest that its neoplastic cells most likely arise from mesenchymal stem cells or fibroblasts rather than histiocytes. (wikipedia.org)
  • This results in the formation of a relatively well-defined zone of compressed fibrous tissue that may contain scattered tumor cells. (medscape.com)
  • Fibrous hamartoma of infancy is a rare, benign soft tissue tumor that typically occurs within the first two years of life. (ispub.com)
  • Immunohistochemical and immunoelectron study of major histocompatibility complex class-II antigen in canine cutaneous histiocytoma: its relation to tumor regression. (illumina.com)
  • On the other hand, clear cell acanthoma is a rare, benign epithelial cutaneous tumor. (medscape.com)
  • This presence of melanin provides pigmentation to the benign tumor, and this occurrence has been termed pigmented clear cell acanthoma. (medscape.com)
  • AFX usually has a benign clinical course and complete tumor resection is generally curative. (netlify.app)
  • Is it a benign tumor or a malignant tumor? (cybersight.org)
  • Giant cell tumor (GCT), also known as pigmented villonodular synovitis, is a rare, slow-growing, and benign neoplasm which arises from the synovium of a joint, tendon sheath, or bursa. (jocr.co.in)
  • A case of late development of a high grade malignant fibrous histiocytoma at the site of a previously surgically treated giant cell tumor is reported. (uthscsa.edu)
  • The patient initially was treated for a benign giant cell tumor of the lateral condyle of the distal femur by curettage, implant of auto- and allograft bone, but no radiation. (uthscsa.edu)
  • After chemotherapy, the tumor was resected and histologically showed no evidence of a recurrent giant cell tumor, only a high grade malignant fibrous histiocytoma. (uthscsa.edu)
  • Non-cutaneous benign FH represents approximately 1% of all benign FH lesions. (alliedacademies.org)
  • The use of "histiocytoma" in these terms refers more to the morphologic appearance of some of the cells that comprise these lesions rather than their lineage: studies to date have not fully determined the lineage of the neoplastic cells in dermatofibroma tumors but recent cell marker studies suggest these cells originate from fibroblasts rather than histiocytes. (wikipedia.org)
  • Generally, soft-tissue tumors grow centripetally, though some benign tumors (eg, fibrous lesions) may grow longitudinally along tissue planes. (medscape.com)
  • Benign lesions were found in 79.9% of cases. (who.int)
  • A histiocytoma is a tumour consisting of histiocytes. (wikipedia.org)
  • A non-cancerous (benign) soft tissue tumour is a growth that does not spread (metastasize) to other parts of the body. (cancer.ca)
  • Fibrous histiocytoma is a benign soft tissue tumour arising as a fibrous mass everywhere in the human body. (biomedcentral.com)
  • We present two clinical cases of patients aged 36 and 74 with an orbital solitary fibrous tumour (SFT). (scitechnol.com)
  • Solitary fibrous tumour (SFT) is an uncommon neoplasm at the orbital level that behaves in benign way in most cases [ 1 ]. (scitechnol.com)
  • The tumour-like growth should be considered a type of skin cancer but it may behave in a benign fashion. (netlify.app)
  • Atypical Fibrous Histiocytoma of the Skin: Clinicopathologic. (lww.com)
  • We studied 59 cases of atypical fibrous histiocytoma to better characterize the clinicopathologic spectrum. (lww.com)
  • We conclude that atypical fibrous histiocytoma has a broader clinicopathologic spectrum than previously realized. (lww.com)
  • Provided that atypical fibrous histiocytoma is treated by complete excision, a benign outcome is to be expected in most cases. (lww.com)
  • However, similar to the cellular and aneurysmal variants of fibrous histiocytoma, atypical fibrous histiocytoma shows a higher tendency to recur locally than ordinary fibrous histiocytoma and may rarely metastasize. (lww.com)
  • atypical squamous cells cannot exclude high grade squamous intraepithelial lesion Fibroxanthoma (M8830/0) - see also Neoplasm, connective tissue, benign. (netlify.app)
  • The ICD-10-CM code D48.5 might also be used to specify conditions or terms atypical fibrous histiocytoma of soft tissue , atypical fibroxanthoma of skin, etc. (netlify.app)
  • International Classification of Diseases (ICD-O-3] 8830/1, Atypical fibrous histiocytoma. (netlify.app)
  • Atypical fibroxanthoma of the skin is a low-grade malignancy related to malignant fibrous histiocytoma, which it resembles histologically. (netlify.app)
  • Reminiscent of benign, malignant, and metastatic neoplasms elsewhere in the body, theses tumors herald their presence by the secondary effects produced while enlarging within the confines of cardiac chambers and tissues. (mhmedical.com)
  • others apply also to benign neoplasms. (netlify.app)
  • Tumors affecting the orbit include benign and malignant neoplasms arising from the various structures in the orbit including the blood vessels, nerves, bones, orbital fat and other soft tissues. (cybersight.org)
  • Dermatofibromas are benign (noncancerous) and harmless in this regard. (healthline.com)
  • Sarcomatoid mesothelioma presents additional difficulties, because the tumors can resemble benign (noncancerous) conditions or other types of cancer. (pleuralmesothelioma.com)
  • Primary bone tumors may be noncancerous (benign) or cancerous (malignant). (msdmanuals.com)
  • Bone tumors may be cancerous (malignant) or noncancerous (benign). (msdmanuals.com)
  • Fibroxanthoma - see also Neoplasm, connective tissue, benign. (netlify.app)
  • Discussion Orbital SFT is a generally benign neoplasm originating from the mesenchyme, uncommon in the orbit. (scitechnol.com)
  • Giant cell tumors(GCT) are uncommon and benign tumors originating due to proliferation of the tendon synovial sheath. (jocr.co.in)
  • The diagnosis of benign fibrous histiocytoma located in the deeper tissues is clinically difficult and is confirmed histopathologically after excision. (alliedacademies.org)
  • Complete surgical excision remains the primary treatment of choice for well-defined, clinically benign orbital tumors. (cybersight.org)
  • Despite its benign nature, the rate of local recurrence after excision has been reported to range between 10%and 20% [7, 8]. (jocr.co.in)
  • Keloids are benign dermal fibroproliferative tumors with no malignant potential. (acadderm.com)
  • This article focuses mainly on nonmelanoma skin cancers, with an emphasis on rare benign and malignant epithelial, dermal, and adnexal tumors. (medscape.com)
  • In most benign long bone cartilage tumors there is minimal endosteal scalloping but there should be no cortical expansion nor thickening. (tumorsurgery.org)
  • histiocytoma (dog) "histiocytoma" at Dorland's Medical Dictionary Sbaraglia M, Bellan E, Dei Tos AP (April 2021). (wikipedia.org)
  • Characteristic histologic appearance of fibrous hamartoma of infancy demonstrating an admixture of mature adipose tissue, scattered primitive mesenchymal cells, and dense bundles of fibrous tissue (100x). (ispub.com)
  • Different non-cancerous tumours can develop in fibrous tissues. (cancer.ca)
  • Fibroma is a general term used to describe a group of non-cancerous tumours that start in the skin or fibrous soft tissues, such as tendons and ligaments. (cancer.ca)
  • Although most soft-tissue tumors of various histogenetic types are classified as either benign or malignant, many are of an intermediate nature, which typically implies aggressive local behavior with a low-to-moderate propensity for metastasis. (medscape.com)
  • Benign soft-tissue tumors are fairly common and are treated with surgery alone. (medscape.com)
  • Deep benign fibrous histiocytoma forms in the tissue deep under the skin usually in the legs or head and neck area. (cancer.ca)
  • The differential diagnosis includes numerous benign and malignant soft tissue tumors. (ispub.com)
  • These benign tumours may also develop deep in a limb and in the abdominal cavity or the back of the abdomen (retroperitoneum). (cancer.ca)
  • Hidrocystomas are rare, benign, watery or fluid filled cystic proliferations of the skin. (acadderm.com)
  • Hodgkin's disease is considered a malignant disorder of the monocyte-histiocyte cell line but also includes benign inflammatory cells as part of its histological picture. (elsevierpure.com)
  • After detailed clinical and laboratory examinations, the lesion was excised in toto under general anesthesia, and histopathology revealed it to be a benign fibrous histiocytoma. (alliedacademies.org)
  • The clinical course is typically benign and prognosis excellent. (ispub.com)
  • These benign tumors also tend to be more common in women than men. (healthline.com)
  • One of the most common benign epithelial tumors is seborrheic keratosis /senile keratosis, which is a hereditary lesion that appears in persons aged more than 30 years. (medscape.com)
  • Before I go into it, orbital tumors are primarily classified as benign and malignant primary tumors or secondary tumors. (cybersight.org)
  • These tumors also are referred to as sarcomatous, spindled or diffuse malignant fibrous mesothelioma. (pleuralmesothelioma.com)
  • As with all tumors, whether benign or malignant, the paradigm of comprehension depends on identifying the cell or cell layer of origin. (medscape.com)
  • [ 2 ] Tumors are further classified as benign, intermediate, or malignant, and intermediate tumors are designated as either locally aggressive or rarely metastasizing. (medscape.com)