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AFP is normally elevated in infants, and because teratoma is the single most common kind of tumor in infants, several studies have provided reference ranges for AFP in normal infants. [5] [6] [7] Perhaps the most useful is this equation: log Y = 7.397 - 2.622.log (X + 10), where X = age in days and Y = AFP level in nanograms per milliliter. [8]
Alpha-fetoprotein (AFP) is significantly expressed in foetal liver. However, the mechanism that led to the suppression of AFP synthesis in adults is not fully known. Exposure of the liver to cancer-causing agents and arrest of liver maturation in childhood can lead to the rise in AFP. AFP can reach until 400–500 μg/L in hepatocellular ...
The primary effects are progressive liver and kidney dysfunction. The liver disease causes cirrhosis, conjugated hyperbilirubinemia, elevated AFP, hypoglycemia and coagulation abnormalities. This can lead to jaundice, ascites and hemorrhage. There is also an increased risk of hepatocellular carcinoma.
This category reflects the organization of International Statistical Classification of Diseases and Related Health Problems, 10th Revision. Generally, diseases outlined within the ICD-10 codes R70-R79 within Chapter XVIII: Symptoms, signs and abnormal clinical and laboratory findings should be included in this category.
ICD-10 is the 10th revision of the International Classification of Diseases (ICD), a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. [1]
At birth, infants have relatively high levels of AFP, which fall to normal adult levels by the second year of life. The normal level for AFP in children has been reported as lower than 50 nanograms per milliliter (ng/ml) and 10 ng/ml in adults. An AFP level greater than 500 ng/ml is a significant indicator of hepatoblastoma.
In the United States, the American Association for the Study of Liver Diseases(AASLD) recommends ultrasound screenings every six months for people with cirrhosis, with or without measurement of blood levels of the tumor marker alpha-fetoprotein (AFP). [38] [6] Elevated levels of AFP are associated with active HCC disease, though their ...
Of special concern is the secretion of alpha-fetoprotein (AFP); under some circumstances, AFP can be used as a diagnostic marker specific for the presence of yolk sac cells within the teratoma. These cells can develop into a frankly malignant tumor known as yolk sac tumor or endodermal sinus tumor.