We present a case of a Myxoid Meningioma noticed in a 43-year-old woman. The patient, who had no noteworthy medical antecedents, showed repeated focal epileptic crisis. Imaging studies (MR and CT) showed a solitary and well delimited tumour located in the frontral lobe. Once extirpated, the histological study revealed a neoplasm of myxoid and benign appearance, with elongated and uniform cells,...

Chondrosarcomas are malignant tumors of cartilage that rarely involve the sinonasal region, and myxoid chondrosarcoma is a rare histologic variant of chondrosarcoma that usually occurs in the soft tissue of extremities. Although several case reports and results of small series of chondrosarcomas in the sinonasal region in children are available, myxoid type chondrosarcoma is extremely rare. We ...

[email protected] Introduction Leiomyosarcoma is a rare sarcoma that usually originates in the retroperitoneum, thus often occurring in the uterus. It more rarely originates intramuscularly in the peripheral somatic soft tissue. Myxoid leiomyosarcoma, in which the myxoid stroma occupies more than 50% of the tissues, is also rarely reported as the myxoid variant of leiomyosarcoma. The pre...

BACKGROUND Extraskeletal myxoid chondrosarcoma is a rare soft tissue sarcoma that has unusual ultrastructural and molecular features. However, unlike other soft tissue sarcomas, it does not have specific clinical symptoms or radiological features, which can make its diagnosis difficult. Nevertheless, extraskeletal myxoid chondrosarcoma has a rare gene fusion (EWSR1-NR4A3) that is useful for mak...

As a general rule, superficial myxoid lesions are benign and deep ones are often malignant, with the important exceptions that intramuscular myxoma is deep and myxofibrosarcoma (also called myxoid malignant fibrous histiocytoma) is classically superficial. These latter two lesions are covered in Chapter 21 and are likely to be sampled on needle biopsies, whereas superficial lesions are typicall...

although esophageal liposarcoma is an extremely rare tumor, liposarcoma is the most common soft tissue sarcoma in adults. liposarcoma is currently classified into the types of well-differentiated, myxoid, round cell, pleomorphic and dedifferentiated liposarcoma. up to now only a few cases of esophagus liposarcoma have been described in the world literature. we describe a myxoid type liposarcoma...

Primary extraskeletal myxoid chondrosarcoma of the pulmonary arteries is a very rare entity. Multimodality imaging reports on this entity are few. Myxoid chondrosarcoma is characterized by chondroid and neurogenic differentiation in extraskeletal locations. These tumours represent fewer than 2.5% of all soft-tissue sarcomas, and are most commonly found in the lower extremities, limb girdles, di...

Dear Editor-in-Chief Myxoid tumors of the oral cavity encompass a broad spectrum of lesions, primarily neoplastic (1). Significant variations in the biological behavior ranging from completely harmless to malignant neoplasm require an accurate histopathological diagnosis to ensure a proper treatment (2). A considerable overlapexists between clinical and histopathological features of these group...

Myxofibrosarcoma, previously known as malignant fibrous histiocytoma, myxoid variant, is a rare tumor of mesenchymal origin, composed of spindle cells and myxoid stroma. It mainly affects elderly people, involving the lower extremities and frequently extending to the dermis and subcutaneous tissue. The tumor presents high rates of recurrence, and a deep biopsy is required to obtain the correct ...

Liposarcomata most frequently originate in the interfascial plane of the thigh, or in the retroperitoneal tissues.' Primary development in the mediastinum is a rare occurrence, with less than 60 cases reported in the world literature.2 3 4 5 Histopathologically, liposarcomata are classified into four basic types: well differ entiated, myxoid, round cell and pleomorphic, and the clinical behavio...