Mutated Arm Monster movie

[Torque]

I have vivid memories of a movie I watched on the Sci-Fi channel in the mid 90's.  It was an... interesting film.  It revolved around a scientist who was experementing with ways to regrow severed limbs that somehow involfrf giant mutant lizards.  His mother also featured prominently into the plot as she had an unhealthy interest in her son.  The scientist finally suceeded but decided to keep it away from his overbearing mother, so he tried to escape from the lab.  Well, in the process his arm was severed at the shoulder by a mechanical door.  So he used the serum on himself, what grew back was a sentient, half reptillian arm monster that lived in his shoulder and ate human skin.
    The scientist fell in with some homeless people and fell in love with a mute girl.  Mom's lackey's show up and drag the boy & his mute lover back to the lab and start performing all sorts of gruesome experements on his mute squeeze.

The scientist eventually attempts to rescure his lover, but he fails and in the process mom and mute girl get pureed in a giant blender and their DNA is spliced together.  What ends up happening is it's his mom's mind in his girlfriend's body.

This movie warped my mind and I want to find it on video.  Unfortunately, I tuned in after the title and I have no idea what the title is.  Any help would be appreciated.

[RCMerchant]

SEVERED TIES(1992) Garret Morris of SNL fame was in it too,as a homeless guy.It was finaced by FANGORIA magazine.I saw it too!

[Mr_Vindictive]

That film sounds awesome.   Might have to hit up Ebay to find a copy.

[Torque]

Thanks, guys.  I had pretty much given up hope of ever finding that movie.  It was awsome, that is why I have such vivid memories of it more than 10 years after I saw it.