880 Rare Benign Chondromyxoid Fibroma of Rib, A Case Report; Is It Really Benign?

Chondromyxoid Fibroma is a benign chondrogenic lesion accounting for less than one percent of the bone tumor; hence, likely to be misdiagnosed. Its presentation can vary from asymptomatic to pain, swelling, and movement restriction. The typical presentation includes a young male with a lesion commonly around the knee joint. However, we detail here an unusual presentation of this benign tumor in a 61-year male referred with chest pain and swelling. Histopathology can be very helpful in diagnosing this rare condition showing the characteristic patterns. Besides, as the tumor is locally aggressive, it can often be misinterpreted and treated as sarcoma. Moreover, it has a high recurrence rate. These characteristics make this rare tumor standout from the other benign tumors. Therefore, these cases need to be viewed thoroughly with a high index of suspicion pre-diagnosis and ensure adequate treatment and follow-up for successful management.

Aneurysmal bone cyst arising in iliopubic chondromyxoid fibroma – a case report

Chondromyxoid fibroma is rare cartilaginous tumor, accounting for 0.5% of all primary bone tumors and 2% of benign bone tumors. Areas of aneurysmal bone cysts (ABC) may be found within CMF in 8.6% of cases. A 20-year-old man presents pain due to a mass on iliopubic ramus that was diagnosed as an aneurysmal bone cyst arising from a chondromyxoid fibroma. This case confirms the rare association between aneurysmal bone cyst and chondromyxoid fibroma. Although aneurysmal bone cyst is more frequently associated with highly vascularized tumors, it is important to consider the diagnosis in the presence of chondromyxoid fibroma. Keywords: Chondromyxoid fibroma; scecondary aneurysmal bone cyst; iliopubic ramus

Radiological manifestations of chondromyxoid fibroma in the zygoma: A case report and literature review

Chondromyxoid fibroma (CMF) is a rare benign bone tumor of cartilaginous origin, with an extremely rare craniofacial occurrence. Considering its rarity, craniofacial CMF presents a diagnostic challenge for radiologists. To our knowledge, only seven cases of zygomatic CMF have been described in the literature, only one of which was in the paediatric age group. Furthermore, none of the currently reported cases include MRI findings of zygomatic CMF. Here, we present a paediatric case of CMF of the zygoma with a comprehensive literature review of the reported cases, focusing on their radiological features and its differential diagnosis.

Chondromyxoid Fibroma of Calcaneum – A Rare Case Report with Review of Literature

Chondromyxoid fibroma (CMF) is a slow-growing benign tumour seen in the metaphysis of a long bone. World health organization (WHO) Classification of Bone and Soft Tissue Tumours (2002) defines CMF as ''benign tumour characterized by lobules of spindle or stellate-shaped cells with abundant myxoid or chondroid intercellular material.1 Jaffe and Lichtenstein were the first to describe this tumour in 1943.2 They differentiated CMF as a benign lesion from chondrosarcoma which is a much more common malignant tumour. Chondromyxoid fibroma is a potentially aggressive tumour with a cartilage-like matrix. It accounts for approximately 1 % of all bone tumors.3 CMF is found in older children and young adults. This type of tumour normally affects people between the age of 10 to 30 years.3,4,5 It is associated with high local recurrence and with less than 2 % of malignant transformation5. While the cells of the CMF tumour do not undergo metastasis, but they can invade nearby tissues. It is painful and causes other symptoms like swelling, stiffness, tenderness, and abnormal growth under the skin. The most common site of this lesion is the tibia and other affected sites are the flat and facial bones, and sparsely in bones of the feet and hand.6,7,8,9 Its occurrence in calcaneum is rarely seen.9 So here we report a case of a female patient, presented with cystic swelling and pain in the left foot, which was diagnosed as CMF in excision biopsy.

Case report of a female child with right nasal chondromyxoid fibroma

Chondromyxoid fibroma; a rarely found tumor, contributing <1% of all primary bone neoplasm. We reported a 4-year female child with a 1-year history of nasal obstruction and facial swelling. Large enhanced lesion with amorphous densities spreading into the right cribriform plate and floor of sphenoid sinus, laterallyinto right lamina papyracea, inferolaterally into medial wall of maxillary sinus, posteriorly into nasopharynx and superior aspect of oropharynx was appreciated in CT scan. Mass was excised by Caldwell Luc’s endoscopic medial maxillectomy via the sublabial approach. CMF was confirmed histologically in post-operative biopsy. Keywords: Chondromyxoid fibroma, benign neoplasm, lamina paprycea. Continuous...