Dr. Maria Isabel Fiel, MD, MS, FAASLD

Expert Publications

• Invasive colloid carcinoma arising from intraductal papillary neoplasm in a
• Liver pathology in obesity.
• Advancing the diagnosis and treatment of hepatocellular carcinoma.
• Hepatocellular carcinoma in type 1 Gaucher disease: a case report with review of
• Recurrent hepatic sarcoidosis post-liver transplantation manifesting with severe hypercalcemia: a case report and review of the literature.
• De novo hepatocellular carcinoma occurring in a transplanted liver: case report and review of the literature.
• Hepatoportal sclerosis as a cause of noncirrhotic portal hypertension in patients with HIV.
• Liver transplantation for hepatocellular carcinoma: extension of indications based on molecular markers.
• Liver fibrosis during an outbreak of acute hepatitis C virus infection in HIV-infected men: a prospective cohort study.
• Circulating angiogenic monocyte progenitor cells are reduced in JAK2V617F high allele burden myeloproliferative disorders.
• A patient with no known liver disease presenting with a sentinel variceal hemorrhage.
• Jaundice developing in a patient with hepatitis C4 months after liver transplantation.
• The presence of JAK2V617F mutation in the liver endothelial cells of patients with Budd-Chiari syndrome.
• A woman with chronic anemia and cholestatic liver disease.
• Ascites and variceal bleeding occurring in a 20-year-old with cystic fibrosis.

Media Releases

Get to know Pathologist Dr. Maria Isabel Fiel, who serves patients in New York, New York.

Recognized as an exceptional pathologist, Dr. Fiel is affiliated with The Mount Sinai Hospital in New York City, New York. She is also the Core Director of the Mount Sinai Alcoholic Liver Disease Research Center. Her clinical interests include liver pathology, gastrointestinal pathology, and cytopathology. 

Founded in 1852, The Mount Sinai Hospital is one of the nation’s largest and most respected hospitals, acclaimed internationally for excellence in clinical care. Ranked among the top hospitals nationwide, it serves one of the most diverse populations in the world. It is also a part of Mount Sinai Health System, whose mission is “to provide compassionate patient care with seamless coordination and to advance medicine through unrivaled education, research, and outreach in the many diverse communities we serve.”

Alongside her clinical role, Dr. Fiel is a Professor of Pathology, Molecular and Cell Based Medicine at the Icahn School of Medicine at Mount Sinai.

A Philippine native, she graduated with her medical degree from the University of the East and completed two residencies in internal medicine at the Ormoc District Hospital and at OSPA Farmers Medical Center. After relocating to the United States, she went on to complete her residency in pathology and her fellowships in gastrointestinal pathology and cytopathology at The Mount Sinai Hospital.

A Fellow of the American Association for the Study of Liver Diseases (FAASLD), the doctor is board-certified in anatomic and clinical pathology & cytopathology by the American Board of Pathology (ABPath). The mission of the ABPath is to promote the health of the public and advance the practice and science of pathology by establishing voluntary certification standards and assessing the qualifications of those seeking to practice the specialty of pathology.

Pathology is a branch of medical science that involves the study and diagnosis of disease through the examination of surgically removed organs, tissues, bodily fluids, and in some cases, the whole body. Pathologists are physicians who specialize in the diagnosis and management of diseases by laboratory methods.

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