RESUMO
Thyroid tissue in cervical lymph nodes is an interesting and rare phenomenon that cannot be directly explained by embryology. Distinguishing malignant from benign thyroid tissue in cervical lymph nodes can be challenging but is essential for treatment and might have legal implications. Patients with incidentally found thyroid tissue in cervical lymph nodes during thyroid surgery were retrospectively identified. Clinical data and findings on pathology were retrospectively collected. Two patients with thyroid tissue in cervical lymph nodes were identified. Conventional pathology complemented with immunohistochemistry and molecular diagnostics showed the thyroid tissue in cervical lymph nodes to be benign. We show that benign thyroid tissue in cervical lymph nodes can be found in the absence or presence of a primary thyroid malignancy. A conservative approach is recommended if pathology shows benign thyroid tissue in cervical lymph nodes.
RESUMO
A 70-year-old man was admitted with stinging pain in his right groin radiating towards his inner thigh. In a few days, the pain increased in intensity, he experienced diminished strength in his right leg and got dependent on morphine. Conventional investigations did not show any pathology. A CT-scan revealed a mass in the obturator foramen, indicative of a possible obturator hernia or neuroma of the obturator nerve. However, an additional MRI showed a well-circumscribed cystic mass in the obturator foramen, indicative of a ganglion cyst. This cyst was percutaneously punctured under the CT-guidance and the viscous material was aspirated, after which corticosteroids were injected. After the puncture all symptoms of the patient had completely resolved and the patient was discharged from the hospital without any painkillers.
