Magnetic resonance imaging findings for differential diagnosis of perianal plexiform schwannoma: Case report and review of the literature

Abstract

Plexiform schwannoma is an extremely rare variant of schwannoma, accounting for approximately 5% of cases. Due to the rarity and lack of typical symptoms, signs and radiological images, a definite diagnosis of plexiform schwannoma may not be made by clinicians prior to biopsy. In the present study, we report the first case (to our knowledge) of perianal plexiform schwannoma arising from the overlapped skin of the ischioanal fossa, and we propose an intratumorally nonenhanced circumferential capsule dividing the tumour into multiple homogeneously enhanced nodules as a magnetic resonance imaging feature to aid in the differential diagnosis of plexiform schwannoma from ancient schwannoma, cavernous haemangioma, liposarcoma and plexiform neurofibroma.

Use of a three-dimensional printed anatomical model for tumor management in a pediatric patient

“…However, if gone untreated, the tumor can continue to grow to the point where it becomes debilitating or, rarely, life-threatening. 2 Surgical intervention has been incorporated in most treatment plans 3,4 and has previously shown to be effective at restoring arm function when the tumor affects the brachial plexus. 5…”

Dual histologic variants of schwannomas in orbital schwannomatosis

“…CT and magnetic resonance imaging (MRI) are helpful for tumor localization. MRI can also show capsular enhancement and circumferential enhancement surrounding regions of cystic degeneration in the ancient subtype of schwannomas [9] . MRI is also necessary to ensure that there is no vestibular mass diagnostic of NF2.…”