Every time they receive their medical examination report, many people become instantly anxious upon seeing the words "lung nodules, thyroid nodules, breast nodules".
Either they are overly anxious and insist on immediate surgical removal, or they completely give up, ignore it, and fail to undergo regular check-ups for years.
Li Lei, director of the Health Examination Center of Hainan Chengmei Hospital, said: "There is no need to turn pale at the mention of 'nodules'. Clinical data shows that over 90% of small nodules detected during physical examinations are benign lesions, which do not require long-term medication or blind surgery.
Lung nodules: stratified by size, frequent follow-up is rejected
Pulmonary nodules are the most concerned issue in physical examinations and also the item that is most prone to overdiagnosis and overtreatment.
Currently, clinical practice follows a unified standard for risk stratification management of pulmonary nodules, with the core being a comprehensive assessment based on nodule size, density, and personal high-risk medical history.
•≤5mm micro-nodules
The probability of malignant transformation is less than 1%, making it a nodule with extremely low risk. Whether it is a ground-glass or solid nodule, it is sufficient to undergo low-dose CT follow-up once a year, without the need for medication or puncture. If there is no change for two consecutive years, the follow-up can be changed to once every two years. Frequent CT reexaminations can cause unnecessary radiation damage.
•5–8mm medium nodules
The probability of malignancy ranges from 2% to 6%. For pure ground-glass nodules, the first follow-up examination should be conducted within 6 to 12 months; for solid or mixed ground-glass nodules, the follow-up examination should be conducted within 3 to 6 months, with a focus on observing whether the nodules have increased in size and whether the solid component (density) has increased. The progression rate of such nodules is extremely slow, and some in situ nodules can remain stable for years, thus there is no need for hasty surgery.
• High-risk nodules (solid/mixed solid-ground-glass nodules) measuring >8mm
If accompanied by features such as lobulation, spiculation, and pleural indentation, the risk of malignant transformation is significantly elevated. It is necessary to perform enhanced CT or biopsy, and multidisciplinary consultation is required to assess whether clinical intervention is necessary.
It is important to note that many inflammatory nodules will absorb spontaneously after a follow-up of 3-6 months. Blind surgery can damage normal lung tissue and affect pulmonary ventilation, resulting in more harm than good.
Thyroid nodules: Depending on the TI-RADS classification, benign nodules do not require indiscriminate medication
Statistics from the ultrasound database of domestic top-tier hospitals indicate that the prevalence of thyroid nodules in the population is approximately 20%-40%, but over 90% of these nodules are benign. The TI-RADS classification on the report serves as the core basis for the scientific management of thyroid nodules.
Thyroid TI-RADS Grading Standards + Corresponding Malignant Risk (Clinically Common Ultrasound Grading)
TI-RADS Category 1
Imaging findings: The thyroid gland is completely normal with no nodules
Malignant risk: 0%
TI-RADS Category 2
Imaging findings: Pure cyst, coarse calcified nodule, definite benign adenoma
Malignant risk: 0%. It is confirmed to be benign, so there is no need to worry
Treatment: Regular annual physical examination is sufficient
TI-RADS Category 3
Imaging manifestation: solid nodule, regular shape, clear boundary, no malignant signs
Malignant risk: <5% (clinically commonly 2% to 5%)
Treatment: Re-examine thyroid ultrasound within 6 to 12 months
TI-RADS category 4 (divided into 4a, 4b, and 4c, with increasing risk levels)
1. Category 4a
A small amount of suspicious signs (slightly low echo, slightly blurred edges)
Malignant risk: 5% to 10%
Treatment: It is recommended to perform a biopsy or a short-term 3-month follow-up
2. Type 4b
Two malignant characteristics (hypoechogenicity + microcalcification/lobulation)
Malignant risk: 10% to 50%
Treatment: Prioritize fine-needle aspiration biopsy (FNAB) of the thyroid
3. Type 4c
3 to 4 typical malignant signs
Malignant risk: 50% to 90%
Treatment: Puncture is necessary, highly suspected of being malignant, prepare for surgical evaluation
TI-RADS category 5
Imaging manifestation: Possessing 4 or more malignant characteristics, accompanied by suspicious abnormal lymph nodes in the neck
Malignant risk: over 90% to 95%
Treatment: perform puncture or direct surgical treatment as soon as possible
TI-RADS category 6
Imaging manifestation: Thyroid malignancy confirmed by puncture pathology
Malignant risk: 100%
Treatment: standardized surgical treatment
It is important to note that many individuals who have grade 3 nodules detected during physical examinations blindly request surgical removal, which can easily lead to lifelong hypothyroidism after surgery, requiring long-term hormone replacement therapy. This is a typical case of overtreatment.
Breast nodules: Based on BI-RADS grading, avoid misconceptions about health preservation
Breast nodules are a common physical examination issue among women. The commonly used BI-RADS grading system indicates that the higher the grade, the higher the risk of malignant transformation, and the follow-up methods vary accordingly.
BI-RADS Category 1
Image: The breast structure is completely normal, without masses, calcifications, or structural distortions
Malignant risk: 0%
Treatment: Regular annual physical examination
BI-RADS Category 2
Image: Identify benign lesions (simple cyst, stable fibroadenoma, coarse calcification, lipoma, intramammary lymph node)
Malignant risk: 0%
Treatment: Annual routine review
BI-RADS Category 3
Image: Highly likely benign solid nodule, with regular shape and clear boundary, no signs of malignancy
Malignant risk: <2%
Treatment: Re-examination with color Doppler ultrasound at 6 months, with a stable reduction to category 2 for 2 consecutive years
BI-RADS category 4
Suspicious malignancy, classified as 4a/4b/4c
4a: Mildly suspicious, with only one malignant sign
Malignant risk: 2% to 10%
Treatment: Suggested puncture biopsy; unwilling to undergo puncture, short-term follow-up for 3 months
4b: Moderately suspicious, with 2 malignant characteristics (low echo, spiculated margin, microcalcification, etc.)
Malignant risk: 10% to 50%
Treatment: Fine needle/hollow needle biopsy is strongly recommended
4c is highly suspicious, with 3 or more malignant signs
Malignant risk: 50% to 95%
Treatment: Puncture is necessary, and preoperative evaluation should be improved
BI-RADS Category 5
Typical malignant imaging manifestations include spicules, micro-clustered calcifications, abundant blood flow, and abnormal axillary lymph nodes
Malignant risk: ≥95%
Treatment: Immediate puncture, surgical inpatient evaluation for operation
BI-RADS category 6
The breast cancer has been confirmed through puncture/surgical pathology
Malignant risk: 100%
Treatment: Comprehensive treatment including standardized surgery, chemoradiotherapy, and endocrine therapy
Avoid two extreme misunderstandings and manage nodules scientifically
Misconception 1: Cutting off all nodules detected, blindly seeking reassurance
Many people, due to excessive anxiety, insist on surgical removal regardless of the size, grading, and nature of the nodules. However, surgery carries risks such as trauma, postoperative complications, and recurrence. Only nodules that are highly suspected of being malignant, compress organs, or rapidly enlarge in a short period of time meet the surgical indications. Regular follow-up for benign small nodules is the optimal approach.
Misconception 2: Nodules are painless and do not require regular check-ups
Although the probability of malignant transformation of low-risk nodules is extremely low, it is not permanent. If long-term follow-up is not conducted, any changes in the shape and size of the nodules may not be detected in time, potentially leading to the missed opportunity for optimal intervention.
Core principles of nodule management
1. Upon receiving the medical examination report, it is advisable to seek interpretation from a professional lead examining physician first, rather than conducting self-diagnosis online, as this may exacerbate anxiety;
2. Properly keep previous physical examination reports and imaging data, and bring them for comparison during follow-up examinations to accurately assess nodule changes;
3. For high-risk individuals with a family history of tumors, long-term smoking, and endocrine disorders, the follow-up interval can be appropriately shortened;
4. By refraining from smoking and excessive alcohol consumption, staying up late less frequently, and regulating emotions, we can reduce the risk of nodule progression through lifestyle adjustments.
Small nodules found in a physical examination are merely minor "marks" on the body, and do not equate to cancer.
Scientific grading and regular follow-up, without panic, neglect, or blind treatment, are the best protection for the body. This not only avoids the risk of canceration but also keeps away from the additional harm caused by overtreatment.
Health Management Center
The Health Management Center, supported by Hainan Cancer Hospital and Hainan Chengmei Hospital, is committed to implementing the "Healthy China" strategy, expanding the connotation and extension of traditional physical examination services, transforming and extending from disease treatment to health management, and providing health management services. It strives to build the most professional health management institution. Adhering to the service tenet of "professional authority, customized exclusivity, and safeguarding health", the center has established a complete set of professional, refined, and standardized service processes in accordance with the central leadership's healthcare system. It provides professional services to high-end individuals such as provincial and ministerial leaders, foreign VIPs, business elites, and social celebrities.