M.D. Anderson Cancer Center
The goal of this clinical research study is to learn if a handheld Mass Spectrometry device (MasSpec Pen) can accurately distinguish between masses, neurofibroma, and normal tissue during surgery.
Primary Objectives: Aim 1. Determine the metabolite and lipid profiles of MPNST, neurofibroma, and nerve tissues Aim 2. Validate the handheld mass spectrometry device (MSPen-Orbitrap system) for MPNST and neurofibroma diagnosis and for intraoperative surgical margin evaluation
Inclusion Criteria: 1. This study will enroll approximately 60 participants diagnosed with either MPNST or neurofibroma who are undergoing surgical resection of an MPNST or neurofibroma as part of their standard of care. 2. Age ≥ 1 years. Individuals younger than 18 years old will be included. For patients of age \< 18 years, both parents' signatures will be requested. 3. Patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension as ≥10 mm (≥1 cm) with CT scan, MRI, or calipers by clinical exam. 4. Recurrent or primary disea…
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