{"id":1454,"date":"2026-03-31T06:59:02","date_gmt":"2026-03-31T06:59:02","guid":{"rendered":"https:\/\/kishiwada.tokushukai.or.jp\/en\/health-checkup\/tumor-markers\/"},"modified":"2026-04-11T03:56:09","modified_gmt":"2026-04-11T03:56:09","slug":"tumor-markers","status":"publish","type":"page","link":"https:\/\/kishiwada.tokushukai.or.jp\/en\/health-check-up\/tumor-markers\/","title":{"rendered":"Tumor Marker Blood Tests"},"content":{"rendered":"<div class=\"max-container\">\n<section class=\"op-section\">\n<p>\n      Tumor marker blood tests may provide additional information as part of clinical evaluation.<br \/>\n      Results should always be interpreted by physicians together with your symptoms, medical history,<br \/>\n      and imaging findings when applicable.\n    <\/p>\n<\/section>\n<p>  <!-- Quick information --><\/p>\n<div class=\"info-card info-card--primary\">\n<div class=\"info-item\">\n<div><strong>Purpose<\/strong><\/div>\n<div>Support clinical evaluation when interpreted by physicians<\/div>\n<\/p><\/div>\n<div class=\"info-item\">\n<div><strong>How results are used<\/strong><\/div>\n<div>Considered alongside clinical findings and imaging when appropriate<\/div>\n<\/p><\/div>\n<div class=\"info-item\">\n<div><strong>Important<\/strong><\/div>\n<div>Tumor markers are not diagnostic on their own<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<section class=\"op-section\">\n<h2>What Tumor Markers Are<\/h2>\n<p>\n      Tumor markers are substances that may be measured in the blood.<br \/>\n      Levels can change for many reasons and are not specific to a single disease.<br \/>\n      For this reason, tumor markers are not used as standalone proof of a condition.\n    <\/p>\n<div class=\"op-alert\">\n<div aria-hidden=\"true\">\u2139<\/div>\n<div>\n        <strong>Key point<\/strong><br \/>\n        A normal result does not rule out disease, and an elevated result does not confirm disease.<br \/>\n        Interpretation requires physician assessment.\n      <\/div>\n<\/p><\/div>\n<\/section>\n<section class=\"op-section\">\n<h2>How These Tests May Be Used<\/h2>\n<p>\n      Depending on your situation, tumor marker testing may be considered to support clinical evaluation,<br \/>\n      for example when combined with imaging or other examinations.<br \/>\n      The selection of tests depends on individual circumstances and physician assessment.\n    <\/p>\n<ul>\n<li>To support evaluation together with symptoms and other test results<\/li>\n<li>To provide additional context when interpreted with imaging findings (when applicable)<\/li>\n<li>To help determine whether further evaluation may be appropriate<\/li>\n<\/ul>\n<\/section>\n<section class=\"op-section\">\n<h2>Examples of Tumor Markers<\/h2>\n<p>\n      The following are examples of tumor markers that may be included in a testing panel.<br \/>\n      The appropriate selection varies depending on clinical needs.\n    <\/p>\n<table class=\"kth-table\" aria-label=\"Examples of tumor markers\">\n<thead>\n<tr>\n<th>Clinical area (example)<\/th>\n<th>Examples of markers<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Digestive tract (example)<\/td>\n<td>CEA, CA19-9<\/td>\n<\/tr>\n<tr>\n<td>Lung (example)<\/td>\n<td>CYFRA, ProGRP<\/td>\n<\/tr>\n<tr>\n<td>Pancreas (example)<\/td>\n<td>SPAN-1, Elastase-1<\/td>\n<\/tr>\n<tr>\n<td>Liver (example)<\/td>\n<td>AFP, PIVKA-II<\/td>\n<\/tr>\n<tr>\n<td>Prostate (example)<\/td>\n<td>PSA<\/td>\n<\/tr>\n<tr>\n<td>Ovary \/ breast (example)<\/td>\n<td>CA-125, NCC-ST-439<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"color:#666; margin: 0;\">\n      * Marker selection and interpretation depend on individual circumstances and physician assessment.\n    <\/p>\n<\/section>\n<section class=\"op-section\">\n<h2>Limitations and Important Considerations<\/h2>\n<ul>\n<li>Results can be influenced by non-cancerous conditions.<\/li>\n<li>Some cancers do not produce measurable tumor marker changes.<\/li>\n<li>Testing is not used as a standalone diagnosis.<\/li>\n<li>Your physician may recommend additional evaluation depending on the overall clinical picture.<\/li>\n<\/ul>\n<\/section>\n<p>\nTumor marker testing does not replace clinical evaluation.<br \/>\nIf additional assessment is required, imaging or specialist consultation<br \/>\nmay be recommended within our hospital-based system.\n<\/p>\n<section class=\"op-section\">\n<h2>Appointments &#038; Inquiries<\/h2>\n<p>\n      Services are available by appointment.<br \/>\n      Please contact us to confirm eligibility and whether tumor marker testing is appropriate for your situation.\n    <\/p>\n<ul class=\"ls-contact-icons\">\n<li>\n    <a href=\"https:\/\/lin.ee\/GRXNFOG\" class=\"ls-contact-icon ls-contact-icon--line\" target=\"_blank\" rel=\"noopener\"><br \/>\n      <i class=\"fa-brands fa-line\" aria-hidden=\"true\"><\/i><br \/>\n      <span class=\"sr-only\">LINE<\/span><br \/>\n    <\/a>\n  <\/li>\n<li>\n    <a href=\"https:\/\/wa.me\/818070945976\" class=\"ls-contact-icon ls-contact-icon--whatsapp\" target=\"_blank\" rel=\"noopener\"><br \/>\n      <i class=\"fa-brands fa-whatsapp\" aria-hidden=\"true\"><\/i><br \/>\n      <span class=\"sr-only\">WhatsApp<\/span><br \/>\n    <\/a>\n  <\/li>\n<li>\n    <a href=\"https:\/\/kishiwada.tokushukai.or.jp\/en\/contact.html\" class=\"ls-contact-icon ls-contact-icon--mail\" target=\"_blank\" rel=\"noopener\"><br \/>\n      <i class=\"fa-regular fa-envelope\" aria-hidden=\"true\"><\/i><br \/>\n      <span class=\"sr-only\">Online contact form<\/span><br \/>\n    <\/a>\n  <\/li>\n<\/ul>\n<\/section>\n<\/div>\n<p><!-- Minimal, safe JSON-LD --><br \/>\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"MedicalWebPage\",\n  \"url\": \"https:\/\/kishiwada.tokushukai.or.jp\/en\/health-check-up\/tumor-markers\/\",\n  \"name\": \"Tumor Marker Blood Tests Osaka | Kishiwada Tokushukai Hospital\",\n  \"description\": \"Tumor marker blood testing in Osaka, Japan. Physician-interpreted results combined with imaging evaluation. English support available. Near Kansai International Airport (KIX).\",\n  \"inLanguage\": \"en\",\n  \"keywords\": \"tumor marker test Osaka, cancer blood test Japan, CEA CA19-9 PSA test Osaka, cancer screening blood test Japan\",\n  \"about\": { \"@type\": \"MedicalTest\", \"name\": \"Tumor marker blood tests\" },\n  \"publisher\": { \"@type\": \"Hospital\", \"name\": \"Kishiwada Tokushukai Hospital\" }\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tumor marker blood tests may provide additional information as part of clinical evaluation. Results should always be interpreted by physicians together with your symptoms, medical history, and imaging findings when applicable. Purpose Support clinical evaluation when interpreted by physicians How results are used Considered alongside clinical findings and imaging when appropriate Important Tumor markers are [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":936,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1454","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/pages\/1454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/comments?post=1454"}],"version-history":[{"count":1,"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/pages\/1454\/revisions"}],"predecessor-version":[{"id":1460,"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/pages\/1454\/revisions\/1460"}],"up":[{"embeddable":true,"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/pages\/936"}],"wp:attachment":[{"href":"https:\/\/kishiwada.tokushukai.or.jp\/en\/wp-json\/wp\/v2\/media?parent=1454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}