{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,13]],"date-time":"2025-11-13T06:46:10Z","timestamp":1763016370093},"reference-count":41,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2003,1,7]],"date-time":"2003-01-07T00:00:00Z","timestamp":1041897600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Medical Research Fund of Tampere University Hospital"},{"name":"Nona and Kullervo V\u00e4re Foundation"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Med. Pediatr. Oncol."],"published-print":{"date-parts":[[2003,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>During modern intensified therapy for childhood acute lymphoblastic leukemia (ALL) serum liver enzymes reach fairly high levels. Since no recent data on liver histopathology after therapy are available, we conducted a study of the subject.<\/jats:p><\/jats:sec><jats:sec><jats:title>Procedure<\/jats:title><jats:p>Liver biopsy specimens were evaluated and serum liver function tests and lipid profiles measured from 27 consecutive children, aged 3.5\u201317.6 years, treated according to the regimens for standard (SR) and intermediate risk (IR) ALL.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>None of the patients had entirely normal liver histology. Fatty infiltration was detected in 25 out of 27 (93%) and siderosis in 19 out of 27 patients (70%). Fourteen (52%) had both. Three (11%) also had mild portal and\/or periportal fibrosis in addition to fatty change and siderosis. Fatty change was mainly microvesicular. Siderosis was in most cases grade II\/IV to III\/IV (in 16\/19 or 84%). No hepatitis or cirrhosis was found. Serum total and LDL\u2010cholesterol levels were higher in the patients with fibrosis than in the patients with fatty change (<jats:italic>P<\/jats:italic>\u2009=\u20090.036, <jats:italic>P<\/jats:italic>\u2009=\u20090.042) or with siderosis\u2009\u00b1\u2009fatty change (<jats:italic>P<\/jats:italic>\u2009=\u20090.036, <jats:italic>P<\/jats:italic>\u2009=\u20090.042). In serial ALT measurements a value of 300 U\/L or more was oftener reached in the fibrosis than in the fatty change or siderosis groups (in 33 vs. in 12 or in 4% of the measurements, respectively, <jats:italic>P<\/jats:italic>\u2009=\u20090.014, in Kruskall\u2013Wallis test).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Microvesicular fatty change and siderosis are the main liver findings after current therapy for childhood ALL. Fibrosis occurs rarely. High values in serial serum ALT measurements repeatedly or a disturbed serum lipid profile may facilitate decisions about the need for a liver biopsy. 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