Schwann cells in the body's nerve sheath can develop into benign tumors known as schwannomas. While thyroid gland schwannomas are uncommon and are rarely documented in the literature, they are less unusual than those appearing in the head and neck region. The rare nature of schwannomas connected to the thyroid gland adds to the difficulty in detecting them prior to surgery. At present, the most popular form of treatment for thyroid schwannomas is surgical resection, which is considered to be curative. A mass excision or lobectomy has a favorable prognosis, few postoperative complications, and a low risk of tumor recurrence. This paper reports the case of a 71-year-old woman who presented with left neck swelling that had been increasing in size over a number of years. An ultrasonography examination revealed multiple bilateral thyroid nodules with high vascularity. The patient's right thyroid lobe exhibited benign nodular hyperplasia while the thyroid tissue of the isthmus exhibited benign nodular hyperplasia and schwannoma. Following the diagnosis, the patient's mass was successfully surgically removed.
Case series Patients: Female, 58-year-old • Female, 30-year-old Final Diagnosis: Parathyroid carcinoma Symptoms: Back pain • swelling in neck • tingling Clinical Procedure: — Specialty: Otolaryngology • Surgery Objective: Rare disease Background: Parathyroid carcinoma represents about 0.005% of all malignancies and accounts for less than 1% of primary hyperparathyroidism cases. Precise preoperative diagnosis of parathyroid carcinoma is challenging, and it is usually diagnosed postoperatively by histological examination. Early suspicion of parathyroid carcinoma can lead to a more extensive surgical approach to reduce the risk of carcinoma recurrence. Cases Reports: The first case involves a 58-year-old woman who presented with severe back pain. An incidental finding on cervical magnetic resonance imaging of a soft-tissue-density mass at the right para-tracheal zone. The large size and the noticeable mass effect pushing the trachea and esophagus to the left side suggested the need for further investigations to rule out malignancy. Initially, it was thought to be a thyroid nodule investigated by fine-needle aspiration that revealed follicular thyroid cancer. After a histopathological examination, it was determined to be a parathyroid carcinoma. The second case involved a 30-year-old woman with a lower-limb tingling sensation. The significantly enlarged mass seen during thyroid ultrasound warranted surgical excision and histopathological analysis to rule out malignancy. Excision of what was considered a parathyroid adenoma revealed a histopathological finding of carcinoma, prompting a hemithyroidectomy. Both patients had high calcium and parathyroid hormone levels preoperatively. Conclusions: Preoperative high calcium, intact parathyroid hormone, creatinine, and alkaline phosphatase, in addition to the lymphocyte-to-monocyte ratio and tumor diameter, are suggested to be predictive of parathyroid carcinoma diagnosis and should be carefully analyzed in all patients presenting with primary hyperparathyroidism.
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