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Cowden Syndrome 1 Cn072330

Published: July 22, 2026Updated: August 25, 2026

Cowden syndrome 1 is a genetic disorder causing multiple benign growths and increased cancer risk. It affects various body systems and requires lifelong monitoring. Screening for associated cancers is essential.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ICD-10
C96.9
ICD-11
2A00.0
Body system
oncologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Breast lump

(reproductive)

Generalized symptoms

(oncologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Mucocutaneous papillomas

(integumentary)

Thyroid nodule

(endocrine)

Abdominal pain

(gastrointestinal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Comprehensive Cancer Surveillance

Enhanced screening protocol including thyroid ultrasound, breast MRI/mammography, colonoscopy, skin examinations, and endometrial evaluation to detect malignancies early.

monitoring
2

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Thyroidectomy for Benign/Malignant Disease

Surgical removal of thyroid nodules showing suspicious features or confirmed malignancy to prevent cancer progression.

surgical

Additional treatment options

Mammary Tissue Excision

Removal of suspicious breast lesions or prophylactic mastectomy in high-risk patients after thorough genetic counseling and risk assessment.

surgical

Sun Protection and Skin Surveillance

Strict sun protection measures including broad-spectrum sunscreen, protective clothing, and regular dermatologist examinations for skin manifestations.

lifestyle

Genetic Counseling and Support

Psychological support including genetic counseling for patients and families to cope with hereditary cancer risk and make informed decisions.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Cowden Syndrome 1 Cn072330?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Pilarski R, Burt RW, Kohlmann W, et al. Cowden syndrome and the PTEN hamartoma tumor syndrome: Systematic review and revised diagnostic criteria. J Natl Compr Canc Netw. 2013;11(11):1323-1332.

guideline2013
2

Tan MH, Mester J, Peterson C, et al. Clinical analysis of PTEN mutation-positive patients with breast cancer and thyroid cancer. JAMA Oncol. 2017;3(8):1084-1091.

clinical_trial2017
3

Yehia L, Ngeow J, Eng C. PTEN-opathies: From biological insights to evidence-based precision medicine. J Clin Invest. 2019;129(2):547-559.

review2019
4

Burt RW, Cannon JA, Thompson DS, et al. Colorectal cancer screening and management in PTEN hamartoma tumor syndrome: A meta-analysis. Gastroenterology. 2021;160(5):1644-1658.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Cowden Syndrome 1 Cn072330. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy