Cook pasta in boiling salted water until done. Drain well and place in large bowl.
In skillet, sauté shrimp with oil and garlic. Cook until shrimp is pink, then drain, and transfer to the pasta bowl.
Give same skillet, a quick wipe with a paper towel.
Place back on low heat. Stir cream cheese, and lemon juice. Cook until blended, stirring constantly. Cook approximately 5 minutes.
Pour sauce over shrimp and pasta and stir well.
Sprinkle with shredded parmesan cheese. Serve right away.