neurofibrosarcoma/edema

Malignant peripheral nerve sheath tumors (MPNSTs) are rare neuroectodermal tumors resulting from the malignant transformation of benign plexiform neurofibromas. The sporadic form of these tumors is rare than familial variants (seen in neurofibromatosis Type 1) and making the diagnosis difficult. We

BACKGROUND The estimated incidence of malignant nerve sheath tumors is 0.001% per year, and only 2-3% of those tumors involve the spinal nerves. We present a rare case of acute hydrocephalus caused by primary malignant peripheral nerve sheath tumor of the cervicothoracic junction. METHODS A

Chronic cardiac insufficiency was associated with a malignant peripheral nerve sheath tumor in a cow. An eight-year-old cow developed a progressive condition (over a period of three months) characterized by an enhanced abdominal volume, reluctance to move, a positive jugular pulse, watery diarrhea

We report a case of a 47-year-old man with neurofibromatosis type 1 presenting with a growing and painful lesion within the right thigh, suggesting a malignant peripheral nerve sheath tumor. MRI showed a T2-weighted hyperintense lesion with surrounding edema and contrast enhancement. (18)F-FDG

A 46-year-old woman was scheduled for excision of a malignant peripheral nerve sheath tumor from the neck. The tumor had caused deviation of the trachea to the left and partial obstruction of the superior vena cava. Her upper airway at laryngoscopy after induction of anesthesia was normal. During

The patient was a 32-year-old woman with neurofibromatosis I (von Recklinghausen's disease), with chief complaints of shortness of breath and back pain. CT and MRI revealed a giant mass occupying the right thoracic cavity almost completely. The mass compressed the mediastinal structure to the left

OBJECTIVE To compare 18F-FDG PET/CT and MRI for differentiating benign and malignant peripheral nerve sheath tumors (BPNSTs and MPNSTs) and correlate imaging characteristics with histopathology. METHODS Patients with pathologically proven PNSTs undergoing 18F-FDG PET/CT were retrospectively

OBJECTIVE To assess the sensitivity and specificity of MRI criteria in the differentiation between malignant peripheral nerve sheath tumors (MPNST) and non-neurogenic malignant soft-tissue tumors (MSTT). METHODS MRI examinations of 105 patients with pathologically proven malignant soft-tissue

OBJECTIVE The purpose of this study is to investigate local control (LC), survival outcomes, and associated prognostic factors for patients with malignant peripheral nerve sheath tumors (MPNSTs) treated with combined surgery and radiation therapy (RT). METHODS We reviewed the medical records of 71

BACKGROUND Malignant peripheral nerve sheath tumor (MPNST) is a kind of rare neurogenic tumor. If associated with neurofibromatosis type 1, MPNST usually has a higher mortality. The aim of the article is to assess the imaging characteristics of MPNST and compare them with those of benign peripheral

OBJECTIVE To determine the utility of "target sign" on diffusion weighted imaging (DWI) and apparent diffusion coefficient (ADC) mapping for peripheral nerve sheath tumor (PNST) characterization. METHODS This IRB-approved, HIPAA-compliant study retrospectively reviewed the MR imaging (comprised of

Stereotactic radiosurgery for vestibular schwannomas (VSs) has become popular during the last decade with promising clinical results after long-term follow-up. However, on rare occasions, some cases have needed traditional microsurgery to remove the tumor several months or years after radiosurgery.

OBJECTIVE To evaluate the efficacy of cryosurgery for treatment of skin and subcutaneous tumors in dogs and cats. METHODS Prospective study. METHODS Dogs (n=20), cats (10). METHODS Cutaneous or subcutaneous tumors were treated by liquid nitrogen cryosurgical spray (1 cm from target tissue at 90

Objectives: To evaluate potential of conventional MRI and diffusion-weighted imaging (DWI) for differentiating malignant from benign peripheral nerve sheath tumors (PNSTs). Methods: