hiaa what is LECD? it stands for less ecodomemocly developed countrie if im wrong then sorree !

Most adrenal tumors can be imaged very well with a CT scan or MRI, and benign tumors tend to look different on these tests than do cancerous tumors. Surgeons may order a CT scan, MRI, or scintigraphy (viewing of the location.

80% of the serotonin in the human body is found in the intestinal tract and is used to regulate intestinal movements. It is metabolized by the liver into 5-HIAA which is indole acetic acid derivative and is then secreted by the kidneys.

Impulsive behavior, and especially impulsive violence predisposition has been correlated to a low brain serotonin turnover rate, indicated by a low concentration of 5-hydroxyindoleacetic acid (5-HIAA) in the cerebral spinal fluid (CSF). Possible polymorphisms in the gene for tryptophan hydroxylase, which is responsible for the production of hydroxytryptophan, the precursor of serotonin. Within violent subjects, a significant relationship was observed between CSF 5-HIAA concentration and specific polymorphism genotypes. The phenotypes associated with these genotypes are extreme and it is hypothesized that these polymorphisms may only be significantly correlated to impulsive behavior