Subcontractor Agreement Basics. Whether you're a subcontractor or just hiring one, a subcontractor agreement helps protect both your interests. As an agreement between a general contractor and a subcontractor, it describes the services and materials provided by the subcontractor, price of the work, and warranties of the parties. Other important clauses include insurance, default, change orders, and indemnification.
A subcortical heterotopia may appear to have mass effect on the adjacent ventricle, so it is important to use imaging clues, such as lack of enhancement, isointense signal to gray matter, lack of associated edema, and diminished volume in the affected region of brain, to differentiate this entity from tumor.
On ultrasound, infantile hemangiomas (the most common type of vascular tumor) appear as hypoechoic, heterogenous, well-defined lesions. They contain small cystic and sinusoidal elements. Doppler ultrasound often reveals fast flow, while hemangiomas are in their proliferative phase.n ultrasound, infantile hemangiomas (the most common type of vascular tumor) appear as hypoechoic, heterogenous, well-defined lesions. They contain small cystic and sinusoidal elements. Doppler ultrasound often reveals fast flow, while hemangiomas are in their proliferative phase.