Mesenchymal chondrosarcoma arising in soft tissue of mediastinum is a very rare tumor. This paper reports an extraskeletal mesenchymal chondrosarcoma occuring in the posterior mediastinum.
Chondrosarcoma ; Chondrosarcoma, Mesenchymal* ; Mediastinum*

No abstract available in English.
Chondrosarcoma, Mesenchymal

Intrascrotal extratesticular malignancies are rare, and the radiologic findings of extraskeletal chondrosarcoma have not been reported. We describe the radiologic findings of a case of mesenchymal chondrosarcoma arising from intrascrotal extratesticular soft tissue and represented by a complex, cystic, solid mass containing calcifications and hematoma.
Chondrosarcoma ; Chondrosarcoma, Mesenchymal* ; Hematoma ; Sarcoma

No abstract available.
Chondrosarcoma, Mesenchymal* ; Mediastinum*

Mesenchymal chondrosarcoma is a rare disease with poor prognosis. Treatment including wide or radical excision is very important. Radiotherapy and chemotherapy are additional treatment options, but no conclusive results for their efficacy have been shown until date. Imaging modalities can give important clues for diagnosis and management planning. Angioembolization before surgery could be useful as prophylaxis to control intraoperative bleeding, increasing the likelihood of complete resection.
Chondrosarcoma, Mesenchymal ; Rare Diseases

Mesenchymal chondrosarcoma is a rare malignant tumor of bone and soft tissue. This aggressive form of chondrosarcoma represents only 3% to 9% of all chondrosarcomas. This neoplasm is characterized by sheets or clusters of undifferentiated spindle or round cells surrounding discrete nodules of well-differentiated cartilage. We experienced a case of mesenchymal chondrosarcoma on mandibular body. Two years ago, the patient had been treated the intrabony cystic lesion on mandiblular left body. At that time, cartilage portion was not detected in the cystic specimen. Two years after cyst enucleation, the recurred large neoplasm in the mandibular left body was noted, and it was diagnosed as 4.5 cm sized mesenchymal chondrosarcoma. The mandibular tumor was widely resected and rigid-plate and cervical musculocutaneous flap were used for reconstruction of resected bone and soft tissues. No complications and recurrence were noted for 6 months postoperatively.
Cartilage ; Chondrosarcoma ; Chondrosarcoma, Mesenchymal ; Humans ; Recurrence

Extraskeletal chondrosarcoma is rare, making up only 1% of reported chondrosarcoma. We experienced 3 cases of extraskeletal chondrosarcoma, especially in vulva. They were suspected as lipoma of the vulva. The patients had noticed a small but growing mass on their vulva which had been palpated earlier. The masses were excised with a 2 cm resection margin. The final pathological reports confirmed extraskeletal mesenchymal chondrosarcoma (EMC) of the vulva revealing no microscopic lesions on the resection margins. After 24 months of following from the initial diagnosis, the patients remain without evidence of any recurrent. Management of EMC is not well studied due to the rare and variable nature of the disease. However, the surgery, such as we had, is the mainstay of local treatment with studies showing better survival in patients who undergo wide surgical resection. The establishment of adjuvant systemic pharmacotherapy could be expected in the future.
Chondrosarcoma ; Chondrosarcoma, Mesenchymal ; Humans ; Lipoma ; Vulva

Mesenchymal Chondrcsarcoma is a rare malignant tumor originally described by Lichtenstein and Bernstein in 1959. Since the original description, several other reports of this tumor have been published, bringing the total numbers of cases in the literature to about Sixty-five. We report a case of Mesenchymal Chondrosarcoma in an 11-year-old boy who complained of a palpable mass in the region of the left iliac crest.
Child ; Chondrosarcoma, Mesenchymal ; Humans ; Male

PURPOSE: To evaluate the MR imaging findings of chondrosarcomas by correlation with pathologic classificationand grade. MATERIALS AND METHODS: We performed MR imaging-pathologic correlation of nineteen chondrosarcomas. Conventional chondrosarcomas accounted for 15 cases (grade I : 6, II : 6, III : 3) and the mesenchymal and dedifferentiated types each accounted for two. MR signal intensity (SI) of the tumor on T1- and T2-weighted images(T1WI and T2WI, respectively), was classified as homogeneous or heterogeneous low-, iso- or high SI, and enhancing pattern as marginal, marginal and septal, marginal and nodular, or diffuse enhancement. RESULTS: Eighteen cases of chondrosarcomas (95%) showed homogeneous or heterogeneous low- or iso SI on T1WI and high SI on T2WI. Low gradeconventional chondrosarcomas showed marginal and septal (n=8/10) or marginal (n=2/10) enhancement on Gd-enhanced MR images. Grade III conventional chondrosarcomas showed marginal or marginal and nodular enhancement. Dedifferentiated and mesenchymal chondrosarcomas showed marginal and nodular or diffuse enhancement. CONCLUSION: Chondrosarcomas showed iso- or low SI on T1WI and high SI on T2WI. Marginal and septal enhancement was demonstrated on Gd-enhanced MR images of grade I and II conventional chondrosarcomas. If a tumor showed amarginal and nodular or diffuse enhancing pattern, this suggested it was a of high grade chondrosarcoma.
Chondrosarcoma* ; Chondrosarcoma, Mesenchymal ; Classification* ; Gadolinium ; Magnetic Resonance Imaging*

Recently, the authors have experienced a case of intracranial meningeal mesenchymal chondrosarcoma. Mesenchymal chondrosarcoma is a rare tumor of the bone and soft tissue. It has been reported that the most common site of their extra-osseous origin is the central nervous system. Precise differential diagnosis should be done because of 1) its similarity to angioblastic meningioma or hemangiopericytoma in pathological aspect, 2) much more malignant tendency. We present one case of intracranial meningeal mesechymal chondrosarcoma with a brief review of the relevant literature.
Central Nervous System ; Chondrosarcoma ; Chondrosarcoma, Mesenchymal* ; Diagnosis, Differential ; Hemangiopericytoma ; Meningioma