A biopsy is the definitive way to diagnose cancer and many other conditions — removing a small piece of tissue for microscopic examination. Korea's pathology services provide rapid, expert diagnosis.
A biopsy is the removal of a tissue sample from the body for examination under a microscope by a pathologist. It is the gold standard for diagnosing cancer — no imaging or blood test can definitively diagnose cancer without pathological confirmation. Biopsies are also used to diagnose inflammatory conditions (inflammatory bowel disease, vasculitis), infections (tuberculosis, fungal infections), autoimmune conditions (lupus), and transplant rejection.
There are several biopsy types. Core needle biopsy (CNB) uses a large-bore needle under ultrasound or CT guidance to sample solid organs (breast, prostate, liver, kidney, thyroid) — it is minimally invasive, performed under local anaesthetic, and provides sufficient tissue for diagnosis and molecular testing. Fine needle aspiration cytology (FNAC) uses a very thin needle to aspirate cells for cytological (cell-level) examination — commonly used for thyroid nodules and lymph nodes. Punch biopsy or shave biopsy is used for skin lesions. Surgical biopsy (excisional — removes the entire lesion; incisional — removes a portion) is used for lesions inaccessible to needle biopsy.
In Korea, tissue pathology is provided by major hospital anatomical pathology departments — among the most experienced in the region — with subspecialty pathology (oncological, haematological, dermatopathology, neuropathology) performed by specialist pathologists. Immunohistochemistry (IHC), molecular testing (EGFR, ALK, PD-L1), and next-generation sequencing (NGS) for targeted therapy eligibility are all available, enabling precision oncology decision-making.
Key Points
- Biopsy is the only definitive way to diagnose cancer
- Core needle biopsy: minimally invasive, local anaesthetic, most common type
- Major hospital anatomical pathology departments: specialist subspecialty pathology
- Molecular testing (NGS, IHC): identifies targetable mutations for precision therapy
- Results typically available within 5–7 working days for standard biopsies
- Liquid biopsy (circulating tumour DNA in blood): emerging non-invasive option
When to See a Doctor
- Suspicious lump or mass identified on examination or imaging
- Unexplained lymph node enlargement lasting more than 2 weeks
- Skin lesion with irregular borders, colour changes, or growth
- Liver, kidney, or other abnormality on imaging requiring characterisation
For emergencies in Korea, call 119
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This content is published for educational purposes only. For accurate diagnosis and personalised treatment, consult a licensed KMA physician in Korea.
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Medical Disclaimer
This article is published by DoctorsInKorea.com for educational and informational purposes only. It does not replace a professional clinical evaluation by a licensed healthcare provider. For accurate medical diagnosis and personalised treatment paths, please book an appointment with a licensed KMA physician. For immediate life-threatening medical emergencies in Korea, please call 119.
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Last reviewed: March 1, 2025