Overview
The right biopsy for the right answer.
A lymph node biopsy is how we get a definitive diagnosis when an enlarged or otherwise suspicious lymph node cannot be sorted out with imaging or blood work alone. The two main approaches are excisional biopsy (removing the entire node) and core needle biopsy (sampling the node with a hollow needle, usually under ultrasound). The right choice depends on what we are looking for: full architectural assessment of an intact node is essential for lymphoma diagnosis and pushes us toward excisional biopsy; confirming metastasis from a known cancer often only needs core needle sampling.
Most lymph node biopsies are outpatient procedures. Superficial cervical, axillary, supraclavicular, and inguinal nodes are easily accessed under local anesthesia with light sedation. Deeper sites — mediastinal, intra-abdominal, retroperitoneal — require general anesthesia and sometimes a laparoscopic or thoracoscopic approach. We coordinate closely with hematology and oncology so that the right tests are ordered on the specimen and the next step is ready as soon as pathology returns.
Who is a candidate?
Anyone with an enlarged or suspicious lymph node that cannot be diagnosed less invasively is a candidate. The most common scenarios are persistent lymphadenopathy without an infectious cause, supraclavicular adenopathy (which is almost always pathologic and needs tissue), suspected lymphoma where the diagnosis and the subtype shape treatment, and known cancer patients with new lymphadenopathy that may represent recurrence or metastasis. We work closely with referring oncologists, hematologists, and primary care physicians to choose the right node and the right biopsy approach.
How we perform it
For excisional biopsy of a superficial node, we use a small incision over the node under local anesthesia with light sedation. The node is dissected free of surrounding tissue, preserving nearby nerves and vessels. The whole node is removed intact and oriented for pathology. The wound is closed with absorbable suture. The procedure typically takes 30 to 60 minutes. For deeper sites — mediastinal, intra-abdominal, retroperitoneal — we use general anesthesia and a laparoscopic, thoracoscopic, or video-assisted approach. Core needle biopsy is performed under ultrasound or CT guidance and takes 15 to 30 minutes. We send the specimen fresh to pathology when lymphoma is suspected so flow cytometry can be performed alongside routine histology.
Recovery and results
Recovery from a superficial excisional biopsy is fast. You go home the same day, the incision is small and well-hidden, and you return to normal activity in 1–2 days. Stitches dissolve or are removed at a 1-week visit. Discomfort is mild and managed with acetaminophen or ibuprofen. Deeper biopsies have proportionally longer recovery — a laparoscopic intra-abdominal node biopsy may keep you in the hospital overnight and limit activity for a week. Routine pathology results come back in 3–5 days; full lymphoma workup with immunohistochemistry, flow cytometry, and molecular studies takes 7–10 days. We see you in clinic when results are back and coordinate next steps with oncology if needed.
Why Florida Surgical
A lymph node biopsy looks simple but is easy to get wrong — picking the wrong node, sending the specimen the wrong way to pathology, or doing a needle biopsy when an excisional biopsy is needed can all delay or compromise the diagnosis. Both Dr. Shaw and Dr. Decio are surgical oncologists who perform lymph node biopsies routinely for our own cancer patients and accept referrals from oncology, hematology, and primary care. We coordinate closely with pathology to make sure the right tests are ordered on the specimen the first time.
Frequently asked questions
When is a lymph node biopsy needed?
A lymph node biopsy is needed when an enlarged or otherwise suspicious lymph node cannot be diagnosed by less invasive means. Common scenarios include a persistently enlarged node for more than 4–6 weeks without an infectious cause, an enlarged node in the supraclavicular fossa (always suspicious), B symptoms (fever, night sweats, weight loss) with lymphadenopathy, a known cancer with new lymphadenopathy that may represent metastasis, and suspected lymphoma that needs full architectural assessment of an intact node.
Excisional vs. core needle — what's the difference?
Excisional biopsy removes an entire lymph node and is preferred when lymphoma is suspected — pathologists need the whole node to assess its architecture for accurate classification. Core needle biopsy uses a hollow needle (usually under ultrasound) to sample a node — minimally invasive and useful for confirming metastasis from a known cancer or for nodes in difficult locations. We choose based on the suspected diagnosis, node location, and patient factors.
Will I be awake for the biopsy?
It depends on the node. Easily accessible cervical, axillary, supraclavicular, or inguinal nodes can usually be biopsied with local anesthesia and light sedation. Deeper nodes (mediastinal, intra-abdominal, retroperitoneal) and complex multi-node sampling require general anesthesia. We discuss the anesthesia plan with you before the day of the procedure.
What is recovery like?
Recovery is typically quick. Excisional biopsy of a superficial node is an outpatient procedure with a small incision, stitches that come out in a week or dissolve, and a return to normal activity in 1–2 days. Discomfort is mild and managed with over-the-counter medication. Core needle biopsy has even faster recovery — just a small bandage and minimal restriction. Deeper or intra-abdominal biopsies have a slightly longer recovery but still under a week.
When will I know the results?
Routine pathology takes 3–5 days. Lymphoma workup includes additional immunohistochemistry, flow cytometry, and sometimes molecular testing, which extends pathology to 7–10 days. We see you in clinic when results are back to review them with you and, if cancer is found, to coordinate with oncology for next steps. If the biopsy is benign, we usually do not need to do anything else.