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Left thyroid hemiagenesis in a patient with primary hyperparathyroidism
Siddek Isreb1, Faisal Alem, David Smith
1Department of General Surgery, Northumbria Health Care, North Shields, UK. drisreb@yahoo.com
BMJ Case Reports
|July 7, 2012
Summary
This case report details primary hyperparathyroidism with incidental left thyroid hemiagenesis. Recognizing this rare congenital anomaly is crucial for surgical planning to prevent postoperative hypothyroidism.
Area of Science:
- Endocrinology
- Surgical Pathology
- Congenital Abnormalities
Background:
- Thyroid hemiagenesis is a rare congenital condition, with approximately 310 cases documented.
- It is frequently discovered incidentally and associated with various pathologies.
- While initially thought to be more prevalent in females due to thyroid disease prevalence, this is not definitively established.
Observation:
- A case of primary hyperparathyroidism incidentally revealed left thyroid hemiagenesis involving the isthmus.
- Left lobe hemiagenesis constitutes the majority of reported instances.
- Absence of the thyroid isthmus occurs in about half of hemiagenesis cases.
Findings:
- Ultrasonography is the preferred diagnostic method for identifying thyroid hemiagenesis.
- The condition's association with other pathologies necessitates thorough patient evaluation.
- Preoperative consideration of thyroid hemiagenesis is vital for managing potential postoperative hypothyroidism.
Implications:
- Accurate diagnosis of thyroid hemiagenesis is essential for surgical planning, particularly thyroid lobectomy.
- Failure to identify hemiagenesis can lead to unavoidable postoperative hypothyroidism.
- This case highlights the importance of recognizing rare congenital anomalies in endocrine surgery.
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