Unusual
mature teratoma
Drs. Ron Pokrupa, Marie-Christine
Guiot, Suzanne Fontaine
This now 67 year old man had
a severe electrical burn in a work injury in 1993. At that time
20.000 volts entered through his right arm and exited through his
legs. The severe burns necessitated left above-knee and a right foot
amputations and reconstructive surgery to the knee, genitals and the
right hand. Subsequent to this, he experienced chronic back pain and
constant phantom limb pain. Superimposed on his back pain were
severe shock-like pains originating in the left back radiating down
his phantom left leg. Strangely these sensations could almost be
completely relieved by floating in water and lying flat. In
addition, he noted urinary frequency and inability to obtain
erections. Previously, he had been in robust good health although he
had noticed a birthmark on his low back.
His examination showed
in 1996 evidence of his previous amputations and burns. Neurologic
examination was difficult because of these. An MRI scan showed
intradural lesion extending out from the spinal cord at the T12
level of uncertain significance. This lesion was followed over the
next four years. His pain became less and less tolerable requiring
the use of Dilaudid and numerous Tylenols. Because of this
intractable pain he underwent exploration of the spinal cord lesion
the 11th of May, 2001. At operation there was a lobulated whitish
yellow, dorsally exophytic, 1.5 cm diameter tumor. It originated in
the spinal cord but grew into the subarachnoid spaces and abutted
on, but was not adherent to the dorsal dura; the dura appeared to be
thinner in consistency then elsewhere. The tumor itself was
centrally cystic and there was a small syrinx in the cord. The
dorsal columns of the spinal cord appeared to spread around the
tumor and were displaced by it. Grossly total resection of the
exophytic portions of the tumor was obtained.
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