PMC6470439_01
Two separate lumps on the dorsolateral aspect of the penis.
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fig1
They were not fixed in place, yet not completely mobile (Figure 1).
MRI of the penis T2 sagittal, demonstrating a distinct nodule on the dorsal aspect of the penis.
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fig2
Magnetic resonance imaging depicted two well-capsulated masses ensheathed within Buck's fascia measuring 2x1 cm and 0.5x1cm each (Figures 2 and 3).
MRI of the penis T2 coronal. Dorsolaterally located nodule: clearly separate from tunica albuginea but included in Buck's fascia.
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fig3
Magnetic resonance imaging depicted two well-capsulated masses ensheathed within Buck's fascia measuring 2x1 cm and 0.5x1cm each (Figures 2 and 3).
Penile plexiform schwannoma. Surgical specimen after excision: yellowish, spindle-shaped, and elastic in consistency.
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fig4
Macroscopically, the specimen appeared to be a 2.3cm spindle-shaped, elastic mass (Figure 4).
Small plexiform nodules with elongated, spindle-shaped tumor cells with no atypia or mitoses: Antoni A (left). Haphazard, scarce cellular arrangement in a loose stroma: Antoni B (right). E&H stain x10.
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fig5
Antoni A and B areas, and the nuclear palisading (Figures 5 and 6). At this point it is worth mentioning that the patient had no physical findings of neurofibromatosis (NF), i.e., no cafe-au-lait spots, no Lisch nodules, no freckles, no osseous malformations, and no family history of NF.
Antoni A area on the left with dense cellularity and nuclear palisading. Antoni B area on the right demonstrating loose array of the cells. E&H stain x20.
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fig6
Antoni A and B areas, and the nuclear palisading (Figures 5 and 6). At this point it is worth mentioning that the patient had no physical findings of neurofibromatosis (NF), i.e., no cafe-au-lait spots, no Lisch nodules, no freckles, no osseous malformations, and no family history of NF.