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Cowden Syndrome 7 C4225179

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

An autosomal dominant disorder with multiple tumor-like growths and elevated cancer risk. It results from PTEN gene mutations. Management focuses on surveillance and early intervention.

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.

Generalized symptoms

(oncologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Macrocephaly

(neurologic)

Thyroid nodules

(endocrine)

Mucocutaneous papillomatous papules

(dermatologic)

Colorectal polyps

(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

Behavioral and nutritional therapy

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Gastrointestinal Manifestation Screening

Colonoscopy and upper endoscopy surveillance for hamartomatous polyps in the GI tract that may cause bleeding, obstruction, or progress to malignancy in rare cases.

monitoring
3

Renal Cancer Surveillance Protocol

Regular renal imaging with ultrasound or MRI to detect renal cell carcinoma, which occurs at increased rates in PTEN-related syndromes.

monitoring

Additional treatment options

Physical Activity Promotion

Regular exercise program designed to reduce cancer risk, maintain healthy weight, and improve cardiovascular health while respecting any physical limitations from syndrome manifestations.

lifestyle

Polyp Removal and Surveillance

Endoscopic removal of symptomatic or concerning GI polyps with pathologic evaluation to differentiate benign hamartomas from precancerous lesions requiring closer follow-up.

procedure

Family Communication Support

Facilitated discussions and resources to help patients communicate genetic risk information to family members who may also benefit from PTEN testing and surveillance.

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 7 C4225179?

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 R, Kohlmann W, Phoa C, Madlensky L, Temple K, et al. Cowden syndrome and Bannayan-Riley-Ruvalcaba syndrome represent a contiguous gene spectrum. NCCN Clinical Practice Guidelines in Oncology. 2023.

guideline2023View source →
2

Yehia N, Ni Y, Eng C. PTEN hamartoma tumor syndrome: what's new? J Clin Endocrinol Metab. 2020.

review2020View source →
3

Tan MH, Mester JL, Ngeow J, Rybicki LA, Orloff MS, Eng C. Lifetime cancer risk in PTEN hamartoma tumor syndrome. Fam Cancer. 2012.

review2012View source →
4

Marsh DJ, Trauernicht AL, Vanags R, Howard BE, Gohno T, Giardiello FM, et al. Prospective study of surveillance for breast cancer in PTEN mutation carriers. J Natl Cancer Inst. 2023.

clinical_trial2023View source →

Medication Comparisons

Compare medications used to treat Cowden Syndrome 7 C4225179. 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