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Texas Medical Center

Gastroenterology, Hepatology and Nutrition
Phone: 832-822-3131
Fax: 832-825-4131


6701 Fannin Street
Suite 1100
Houston, TX 77030

Lina B. Karam, MD

Director of Capsule Endoscopy

Assistant Professor of Pediatrics, Baylor College of Medicine


School Education Degree Year
University of Michigan Medical School Residency Pediatrics 2003
University of Michigan Fellowship Pediatric Gastroenterology 2001
Medical University of South Carolina Fellowship Pediatric Gastroenterology 2000
American University of Beirut Residency Pediatrics 1998
American University of Beirut Residency Anesthesiology 1995
Saint Joseph University Medical School Doctor of Medicine 1994


Lina B. Karam M.D is a Pediatric Gastroenterologist with clinical expertise in treatment of patients with a variety of gastrointestinal disorders and a special interest in patients with inflammatory bowel disease. She is the medical director of the capsule endoscopy program which is a state of the art technology that allows us to examine the area of the bowel that cannot be reached by regular upper or lower endoscopy. Dr Karam has special interest in the area Inflammatory Bowel Disease especially Very Early Onset Inflammatory Bowel Disease and the role of genetics. She is involved in multicenter national study with Crohn’s Colitis Foundation in patients with very early onset inflammatory bowel disease.

Professional Interests:
Capsule Endoscopy role in the study and treatment of small bowel disorders
Capsule Endoscopy Curriculum development 
Inflammatory bowel disease in general and more specifically for Early and Very Early Onset IBD


Organization Name Role
American Academy of Pediatrics

Member (6/2001-present)
American Gastroenterological Association

Member (06/2007 – present)
Crohn’s Colitis Foundation of America

Member (06/2007-present)
North American Society for Pediatric Gastroenterology and Nutrition

Member (06/1999 – present)

Selected Publications

Milner JD, Vogel TP, Forbes L, Ma CA, Stray-Pedersen A, Niemela JE, Lyons JJ, Engelhardt KR, Zhang Y, Topcagic N, Roberson ED, Matthews H, Verbsky JW, Dasu T, Vargas-Hernandez A, Varghese N, McClain KL, Karam LB and Cooper MA. Early-onset lymphoproliferation and autoimmunity caused by germline STAT3 gain-of-function mutations. Blood 2015 Jan 22; 125(4):591-9.

Cruz AT, Karam LB, Orth RC, Starke JR. Disseminated tuberculosis in 2 children with inflammatory bowel disease receiving infliximab. Pediatric Infectious Diseases Journal 2014 Jul; 33(7):779-81.

Karam LB, Disco D, Jackson SM, Lewin D, McKie V, Baker RD, Baker SS, Laver JH, Nietert PJ, Abboud MR.  Pediatric Blood & Cancer 2008 Jan; 50(1):62-5

Patient and Family Comments

* Texas Children's Hospital physicians' licenses and credentials are reviewed prior to practicing at any of our facilities. Sections titled From the Doctor, Professional Organizations and Publications were provided by the physician's office and were not verified by Texas Children's Hospital.