
Understanding, Diagnosing, and Using Genetic Testing for Gorlin Syndrome
Gorlin Syndrome, also known as Nevoid Basal Cell Carcinoma Syndrome (NBCCS), is a rare genetic disorder that predisposes individuals to various developmental…

MD · MBA
Physician specializing in genetic analysis and personalized preventive medicine, and author of Outsmart Your Genes.
Brandon Colby is a physician-expert in the fields of genetic analysis and Personalized Preventive Medicine. He holds an MD from the Mount Sinai School of Medicine, an MBA from Stanford University's Graduate School of Business, and a degree in Genetics from the University of Michigan.
Dr. Colby is the author of the book Outsmart Your Genes and has developed numerous technologies that improve the analysis, interpretation, and actionability of genome sequencing data. He is an Affiliate Specialist of the American College of Medical Genetics and Genomics (ACMG), an Associate of the American College of Preventive Medicine (ACPM), and a member of the National Society of Genetic Counselors (NSGC).
Articles by Brandon Colby, MD are reviewed for accuracy by Sequencing's medical and scientific team. This page is for informational purposes and does not constitute medical advice.

Gorlin Syndrome, also known as Nevoid Basal Cell Carcinoma Syndrome (NBCCS), is a rare genetic disorder that predisposes individuals to various developmental…


Helicoid peripapillary chorioretinal degeneration (HPCD) is a rare and complex eye disorder that affects the retina, leading to progressive vision loss.

Hepatocellular carcinoma insights: Diagnosis, genetic testing methods, identifying mutations, predicting risks, and tailoring personalized treatment for liver cancer.

Genetic testing confirms Hereditary Arterial and Articular Multiple Calcification Syndrome (HAAMCS), guiding diagnosis, understanding, and tailored treatment options.

Hereditary coproporphyria (HCP) impacts heme production, causing symptoms like abdominal pain and neurological issues. Genetic testing confirms diagnosis and aids in treatment.

Hereditary Hypercarotenemia and Vitamin A Deficiency disrupt carotene-to-vitamin A conversion. Genetic testing confirms diagnosis, identifies carriers, and guides treatment.

Hypertrophic Cardiomyopathy 2 (HCM2) is a genetic disorder characterized by the abnormal thickening of the heart muscle, which can lead to a range of…