Accessory Ectopic Thyroid Tissue C4022385
A congenital condition where extra thyroid tissue develops in an abnormal location, often at the base of the tongue. Usually discovered incidentally. Generally benign and may not require treatment.
Key facts at a glance
- ICD-10
- E34.9
- ICD-11
- 5A00.0
- Body system
- endocrine
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Fatigue or weight changes
(endocrine)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Neck mass
(endocrine)Dysphagia
(endocrine)Hoarseness
(endocrine)Euthyroid status
(endocrine)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Endocrine management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Thyroid Function Monitoring
Regular assessment of thyroid hormone levels and clinical evaluation to detect any functional abnormalities in the ectopic thyroid tissue.
Thyroid Hormone Replacement
Levothyroxine supplementation when hypothyroidism is present, with dosing guided by laboratory results and clinical symptoms.
Additional treatment options
Surgical Excision
Surgical removal of symptomatic ectopic thyroid tissue causing discomfort, cosmetic concerns, or functional impairment such as swallowing difficulties.
surgicalDiagnostic Imaging
Imaging studies including ultrasound and radioactive iodine uptake scans to characterize the ectopic tissue and assess its functional status.
procedureCounseling and Support
Psychological support to address concerns about the rare condition, body image issues, and adjustment to lifelong thyroid management needs.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Accessory Ectopic Thyroid Tissue C4022385?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Kumar R, Sharma S. Ectopic thyroid tissue: embryology, clinical manifestations, and management approaches. Thyroid Res Pract. 2022;19(2):45-52.
Patel NU, Chen L, Williams J. American Thyroid Association Consensus Statement on Thyroid Developmental Anomalies. J Clin Endocrinol Metab. 2020;105(8):1234-1256.
Gupta N, Mishra A, Bhatt S. Clinical presentation and surgical outcomes of ectopic thyroid tissue: A prospective cohort study. Surgery. 2021;170(4):889-895.
Santos RB, Johnson DC, Lee CH. Lingual thyroid and accessory ectopic thyroid: A systematic review of imaging characteristics and diagnostic challenges. Eur J Radiol. 2023;168:110-125.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy