The word neurofibroma is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 23
Highest Scoring Words With Friends™ Play In The Letters neurofibroma
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Seven Letter Word Alert: (28 words)
airborn, arenium, armoire, barmier, barroom, bonfire, boomier, bromine, enamour, fermion, fibroma, firearm, fireman, foamier, foramen, forbear, forearm, foreman, ionomer, manurer, mariner, moraine, mourner, neuroma, refrain, romaine, roomier, uniform