UNASSIGNED: Chondromyxoid fibroma (CMF) is a rare cartilaginous tumor, accounting for < 1% of benign bone tumors. We report a case of temporomandibular joint (TMJ)-CMF, involving the pterygopalatine space and skull base and discuss its epidemiology, clinical characteristics, and management.
UNASSIGNED: A 56-year-old woman presented with facial asymmetry and progressive mouth opening restriction due to a mass expanding upwardly to the auriculotemporal region. Using digital techniques to determine the lesion\'s boundary and reconstruct the normal glenoid fossa, the temporalis myofascial flap was transplanted between the titanium mesh and condyle to reconstruct the disc after tumor resection.
UNASSIGNED: This case highlights the importance of identifying patients with TMJ-CMF.

Chondromyxoid fibroma is one of the rarest bone tumours, occurring most frequently in adult men in their second and third decades. It generally affects the metaphysis of long bones, particularly the femur and tibia. Diagnosis can pose differential challenges with various tumor types, particularly chondrosarcoma, requiring separate management. We present a case of chondromyxoid fibroma of the distal tibia detected by soft tissue swelling. Clinical, epidemiological and radiological aspects will be discussed.

Chondromyxoid fibroma (CMF) is a rarely documented benign osseous neoplasm, particularly with respect to its incidence in the lumbar spinal region. CMF predominantly manifests in vertebral bodies, exhibiting atypical emergence in ancillary anatomical sites. The present report describes, to the best of our knowledge, the second documented instance of CMF originating from the lumbar facet joint. The present case provides an example of CMF in the lumbar facet joint precipitating spinal canal stenosis, thereby engendering neurological manifestations in the lower extremities due to neoplastic proliferation through the intervertebral foramen. The present therapeutic intervention entailed surgical excision of the neoplasm concomitant with facet joint arthrodesis, with the objective of achieving comprehensive neoplasm eradication, ameliorating the symptomatology and safeguarding the spinal structural integrity of the patient. The present study aimed to illustrate the clinical implications of this rare neoplasm, thereby elucidating the diagnostic quandaries and therapeutic complexities associated with CMF in the lumbar facet joint. In addition, the present study aimed to augment the existing knowledge for the diagnosis and clinical management of CMF.

Chondromyxoid fibroma is an unusual, benign bone tumour that is usually sited in the metaphyseal region of the long bones. It accounts for less than 1% of all bone tumours. It manifests predominantly in males in their second and third decades of life. Rarely, it occurs in the bones of the craniofacial skeleton. For small, lesions enucleation and curettage and for larger lesions, resection followed by are the treatment modalities available. Here, we present a case of chondromyxoid fibroma with respect to the right side of the mandible which was managed by surgical resection followed by reconstruction under general anaesthesia. Resection followed by reconstruction provides satisfactory outcomes, especially in cases with large lesions. Chondromyxoid fibroma is an asymptomatic, benign, slow-growing lesion but can rapidly expand and involve the greater area of bone. Thus, its detection at an early stage and treatment at the proper time can lead to less morbidity associated with the lesion and improved quality of life of the patient.

BACKGROUND: Chondromyxoid fibroma (CMF) is an unusual benign tumour of cartilaginous tissues that may be confused with other malignant tumours. It is rarely seen in the cervical spine.
METHODS: A 24-year-old young woman was admitted to the hospital because of neck and shoulder pain. Computed tomography, magnetic resonance imaging, X-ray and other imaging examinations of the cervical spine and laboratory-related indicators combined with intraoperative pathology revealed that the patient had cervical CMF. We performed total resection of the vertebral body and intervertebral disc, and internal fixation was performed to simultaneously maintain the stability of the entire spine. The clinical results from extensive resection were satisfactory. At the 2-year follow-up, the patient\'s symptoms had not recurred.
CONCLUSIONS: CMF is a benign primary bone tumour that is rarely located in the vertebral bone. Accurate initial diagnosis of these tumours is important for appropriate treatment. En bloc surgical resection of the tumour is the cornerstone of treatment.

Chondromyxoid fibroma (CMF) of the calcaneus is extremely rare. We report a case of CMF of the calcaneus in a 34-year-old female. She had foot pain for one year and had increased pain for the last two months. The patient complained of limping due to the pain she felt. CMF of the calcaneus was treated with curettage and bone grafting. The patient was allowed to mobilize the very next day of surgery with weight bearing as much as she could tolerate. No recurrence was encountered during the 18-month follow-up of the patient. The patient could perform activities in her daily life painlessly. Carefully performed curettage and bone grafting is an effective treatment method in the treatment of CMF of the calcaneus. CMF in the calcaneus may not be as rare as it is thought, and should be considered in the differential diagnosis.

BACKGROUND: Chondromyxoid fibroma (CMF) is a rare benign bone tumor that typically affects long bones, only 2% of CMFs involved facial bones or skull, zygomatic localization is extremely rare with only 8 cases reported in literature so far.
METHODS: We report a case of 88 old years patient with painful swelling in the right zygomatic around 1 year, progressively increasing in volume, Computed tomography (CT) scan showed an osteolytic lesion in the right zygomatic bone with cortical destruction. Surgical management consisted of bone curettage using intra oral approach, the histopahological findings were in favor of the diagnosis of CMF.
CONCLUSIONS: CF is a rare bone tumor and represents less than 1% of all bone tumors, the maxillofacial bones are rarely affected, with the mandible as a site of predilection, the zygomatic location is extremely rare. The clinical presentation is not typical, radiologically, the lesion is usually osteolytic with well defined margins.En bloc resection is the gold standard, some authors recommand conservative approach to avoid esthetic and functional sequels.
CONCLUSIONS: We reported a very rare presentation of CF involving zygomatic bone treated by conservative approach.

UNASSIGNED: Chondromyxoid fibroma (CMF) is an uncommon benign tumor accounts for <2% of all benign and <1% all bone tumors. It is a cartilage tumor with myxoid and fibrous elements. Because of rarity and resemblance with other benign and malignant tumor, diagnosis of this tumor always remains challenging. Often, this lesion affects metaphysis of long growing bones of children and young adults. Common locations of this tumor are around the growth plate of proximal tibia and fibula and distal femur.
UNASSIGNED: A 21-year-old male presented to orthopedic outpatient department with a history of the left hip pain for 1 year, following a trivial fall before 1 year. The patient was not able to do heavy strenuous activities such as running, jumping, and other sports activities. Terminal range of movements were painful. Magnetic resonance imaging suggested of cystic lesion involving synovial lining near head-and-neck junction of the left femur. Curettage of the lesion was done. The bone defect was not found to be large enough to be filled with bone graft. Histopathological examination showed lobular pattern with stellate to spindle-shaped cells on the myxoid background.
UNASSIGNED: CMF of subcapital region of femoral neck is an extremely unusual presentation. When occurring in middle-aged persons and in uncommon locations, this can raise suspicion of chondrosarcoma. Although intralesional curettage has the risk of recurrence in post-operative period, sufficient and careful curettage and excision of lesion will be enough to treat these benign lesions with good prognosis.

Chondromyxoid fibroma is a rare bone tumor characterized by immature myxoid mesenchymal tissue showing early primitive cartilaginous differentiation. There have been limited case reports describing the cytologic features of chondromyxoid fibroma. Herein, we reported cytologic features of chondromyxoid fibroma on fine-needle aspiration (FNA).
We performed a retrospective search in our cytopathology and surgical pathology database for cases diagnosed as chondromyxoid fibroma that had corresponding cytology specimens from three medical institutions. All available cytopathology specimens were reviewed.
Eight cases were retrieved from patients aged 16-77 years (mean, 51 years), and M:F ratio of 1.7:1. Seven tumors (88%) were primary, and most (62%) occurred in flat bones. Cytologic diagnoses were made in 6 cases with cytologic slides not available to review in 1 case. All cases showed metachromatic matrix in the background, while hyaline cartilage fragments were absent. All cases had two cell populations comprising oval to round cells and stellate to spindle cells. The spindle to stellate cells were more commonly embedded in matrix material. Moderate atypia (hyperchromasia and moderate anisonucleosis) was present in 4 cases (80%), while no mitotic figure was present in all cases.
Our study highlights common cytologic features of chondromyxoid fibroma, including the presence of the spindle or stellate cells embedded in matrix material. Hyaline cartilage is uncommon and, if present, diagnostic considerations should include enchondroma or low-grade chondrosarcoma. A specific cytologic diagnosis primarily using FNA samples can be challenging but possible when evaluated in conjunction with clinical and radiologic data.

Initially described, in 1948, as a tumor that could be mistaken with chondrosarcoma at histopathology, chondromyxoid fibroma is now a well-recognized entity. Surface-type chondromyxoid fibroma, however, remains an extremely rare occurrence. We present a case of a 55-year-old woman, who experienced right arm pain for 5 years. After unsuccessful treatment for presumed thoracic outlet syndrome, MRI revealed a large mass abutting the anteromedial cortex of the distal humeral diaphysis in a subperiosteal location. Further characterization was made with radiography, CT, and bone scan, which were followed by ultrasound-guided biopsy. Although histopathologic features were suggestive of chondromyxoid fibroma, the diagnosis remained somewhat uncertain initially due to the very unusual location involving the diaphysis of the humerus. Surgical resection was performed, and subsequent histopathologic analysis confirmed the diagnosis of chondromyxoid fibroma. Despite being a rare entity, surface-type chondromyxoid fibroma would need to be considered in the differential when dealing with expansile surface diaphyseal lesions.