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Minimal Invasive Resection of Large Retrosternal Thyroid Goiter

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[Hypothyroidism after operation for struma ovarii].

Marjoes Zikkenheimer¹, Jens Hertz

¹Kirurgisk Afdeling, Bispebjerg Hospital, Denmark. mzikkenheimer@hotmail.com

Ugeskrift for Laeger

|April 16, 2013

Summary

Struma ovarii, a rare ovarian tumor, is typically asymptomatic but can cause hyperthyroidism. Post-surgical hypothyroidism necessitates thyroid function monitoring.

Area of Science:

Gynecology
Endocrinology
Pathology

Background:

Struma ovarii is a rare germ cell tumor, defined by thyroid tissue comprising over 50% of the ovarian mass.
Often found within mature cystic teratomas (dermoid cysts), it is frequently discovered incidentally during pelvic examinations or imaging.
While typically asymptomatic, struma ovarii can present with symptoms mimicking other ovarian neoplasms.

Observation:

Approximately 5% of patients with struma ovarii may exhibit clinical or biochemical signs of hyperthyroidism or thyrotoxicosis.
The presented case highlights a patient who developed biochemical hypothyroidism following surgical resection of the struma ovarii.
This observation underscores the potential for thyroid dysfunction, both pre- and post-operatively.

Findings:

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Surgical removal is the standard treatment for struma ovarii.
Post-operative thyroid function assessment is crucial, as demonstrated by the case of induced hypothyroidism.
The thyroid tissue within the tumor can influence systemic thyroid hormone levels.

Implications:

Patients diagnosed with struma ovarii require careful pre- and post-operative thyroid function evaluation.
Endocrinological monitoring is essential to manage potential thyroid imbalances after treatment.
This case emphasizes the importance of considering thyroid function in the management of ovarian teratomas.