Thyroid

IgG4-related disease of the thyroid: A consideration in the differential diagnosis of an expanding thyroid mass

January 19, 2015     Irina Chaikhoutdinov, MD; Eelam Adil, MD, MBA; Michael D.F. Goldenberg, BA, MA; Henry Crist, MD
article

Riedel thyroiditis is a rare inflammatory process associated with IgG4; it involves the thyroid and surrounding cervical tissue, and it is associated with various forms of systemic fibrosis.

Arrested development: Lingual thyroid gland

January 19, 2015     Mark R. Williams, MRCS(ENT); Vivek Kaushik, FRCS(ORL-HNS)
article

Most patients with lingual thyroid are asymptomatic and are diagnosed incidentally following a radiologic investigation for another condition of the head and neck.

Acute exacerbation of Hashimoto thyroiditis mimicking anaplastic carcinoma of the thyroid: A complicated case

December 19, 2014     Hiroaki Kanaya, MD; Wataru Konno, MD; Satoru Fukami, MD; Hideki Hirabayashi, MD; Shin-ichi Haruna, MD
article

The fibrous variant of Hashimoto thyroiditis is uncommon, accounting for approximately 10% of all cases of Hashimoto thyroiditis. We report a case of this variant that behaved like a malignant neoplasm. The patient was a 69-year-old man who presented with a right-sided anterior neck mass that had been rapidly growing for 2 weeks. Fine-needle aspiration cytology revealed clusters of large multinucleated cells suggestive of an anaplastic carcinoma. A week after presentation, we ruled out that possibility when the mass had shrunk slightly. Instead, we diagnosed the patient with an acute exacerbation of Hashimoto thyroiditis on the basis of laboratory findings. We performed a right thyroid lobectomy, including removal of the isthmus, to clarify the pathology and alleviate pressure symptoms. The final diagnosis was the fibrous variant of Hashimoto thyroiditis, with no evidence of malignant changes. Physicians should keep in mind that on rare occasions, Hashimoto thyroiditis mimics a malignant neoplasm.

Simultaneous non-Hodgkin lymphoma of the external auditory canal and thyroid gland: A case report

December 19, 2014     BeeLian Khaw, MD; Shailendra Sivalingam, MS-ORL; Sitra Siri Pathamanathan, MBBS; Teck S. Tan, MBChB, MRCS; Manimalar Naicker, MPath
article

Approximately 25% of all cases of extranodal non-Hodgkin lymphoma (NHL) occur in the head and neck region; NHL of the external auditory canal (EAC) and thyroid gland are rare. Specific immunohistochemical staining of the excised tissue is required to confirm the final pathologic diagnosis. We report the case of a 53-year-old woman with underlying systemic lupus erythematosus and autoimmune hemolytic anemia that were in remission. She presented with chronic left ear pain, a mass in the left EAC, and rapid growth of an anterior neck swelling that had led to left vocal fold palsy. High-resolution computed tomography (CT) of the temporal bone and CT of the neck detected a mass lateral to the left tympanic membrane and another mass in the anterior neck that had infiltrated the thyroid gland. The patient was diagnosed with simultaneous B-cell lymphoma of the left EAC and thyroid gland. She was treated with chemotherapy. She responded well to treatment and was lost to follow-up after 1 year. To the best of our knowledge, the simultaneous occurrence of a lymphoma in the EAC and the thyroid has not been previously described in the literature.

Medullary thyroid carcinoma presenting as a supraglottic mass

October 17, 2014     Jeremy White, MD; Ahmed Mohyeldin, MD, PhD; Arnold Schwartz, MD, PhD; Steven Bielamowicz, MD
article

Abstract

We report a rare case of medullary thyroid carcinoma that presented as a metastasis to the supraglottic larynx. A 92-year-old man with a 3-month history of voice change and airway obstruction was diagnosed with medullary thyroid carcinoma metastatic to the supraglottis. Excision of the mass, total thyroidectomy, and elective neck dissection were recommended, but the patient declined because of his advanced age. Medullary carcinoma of the thyroid gland is a rare neuroendocrine tumor with a poor prognosis when associated with a distant metastasis. To the best of our knowledge, this is the first case of a medullary carcinoma of the thyroid presenting as a supraglottic mass. Total thyroidectomy, neck dissection, and surgical excision of the entire tumor comprise the treatment of choice.

Black thyroid

October 17, 2014     Darrin V. Bann, PhD; Neerav Goyal, MPH, MD; Henry Crist, MD; David Goldenberg, MD, FACS
article

Despite the benign impact of minocycline on thyroid function, several studies have reported an association between black thyroid and thyroid cancer.

Hypocalcemia after minimally invasive thyroidectomy

September 17, 2014     Doug Massick, MD; Matthew R. Garrett, MD
article

Abstract

We conducted a retrospective study to determine the incidence of postoperative hypocalcemia following minimally invasive thyroidectomy. During the 2-year study period, 74 patients-16 men and 58 women (mean age: 43.7)-underwent either total or hemithyroidectomy through a 3-cm incision. Postoperative hypocalcemia occurred in 14 of these patients (18.9%)-4 men and 10 women-all of whom underwent total rather than hemithyroidectomy. All these patients received supplementation with calcium and vitamin D for 2 weeks postoperatively in order to regain a normal calcium status, and all demonstrated normal serum calcium levels at 3 weeks. Despite their low calcium levels, none of the 14 patients exhibited any overt symptoms of hypocalcemia. We conclude that minimally invasive thyroidectomy is associated with a low rate of postoperative hypocalcemia that is comparable to the rates previously reported for standard thyroidectomy.

Papillary thyroid cancer in a gravid woman

July 13, 2014     Darrin V. Bann, PhD; Neerav Goyal, MD, MPH; David Goldenberg, MD, FACS
article

All attempts should be made to preserve the recurrent laryngeal nerve with resection of all gross tumor, particularly in cases of known contralateral RLN dysfunction.

Ossifying fibromyxoid tumor metastatic to the thyroid: A case report and review of the literature

June 8, 2014     Ricardo R. Lastra, MD; Jason G. Newman, MD; John S. Brooks, MD; Jui-Han Huang, MD, PhD
article

Abstract

Ossifying fibromyxoid tumors are rare soft-tissue neoplasms, usually with an indolent course. However, atypical/malignant variants have been described, showing either local recurrence after complete excision or metastasis to the lungs, mediastinum, adrenals, or soft tissue. We report the case of an ossifying fibromyxoid tumor of the left ankle that metastasized to the lung and thyroid gland 12 years after the initial diagnosis and surgical treatment. To our knowledge, this is the first reported case of this neoplasm metastasizing to the thyroid gland.

Chronic lymphocytic thyroiditis (Hashimoto thyroiditis)

May 7, 2014     Lester D.R. Thompson, MD
article

Appropriate management requires lifelong thyroid hormone replacement therapy, resulting in decreased thyroid antibody levels, although complications of therapy may be seen.

Severe symptomatic hypocalcemia following total thyroidectomy in a patient with a history of Roux-en-Y gastric bypass surgery

January 21, 2014     Justin A. Gross, MD; Steven M. Olsen, MD; Cody A. Koch, MD, PhD; Eric J. Moore, MD
article

Abstract

Patients who undergo a Roux-en-Y gastric bypass (RYGB) procedure are at moderate risk for calcium and vitamin D deficiency. Those who subsequently undergo thyroid or parathyroid surgery are at high risk for developing severe symptomatic hypocalcemia if they are not monitored and adequately treated prophylactically. We describe the case of a morbidly obese 40-year-old man who had undergone RYGB surgery 6 months prior to the discovery of metastatic papillary thyroid carcinoma. He subsequently underwent total thyroidectomy with central and bilateral neck dissection. Following surgery, he developed severe symptomatic hypocalcemia, as his calcium level fell to a nadir of 6.0 mg/dl. He required aggressive oral and intravenous repletion therapy with calcium, vitamin D, and magnesium for 10 days before hospital discharge. Providers should institute careful preoperative screening, patient counseling, and prophylactic calcium and vitamin D therapy for all thyroid surgery patients who have previously undergone RYGB surgery to prevent the development of severe and life-threatening hypocalcemia. Only a few reports of patients have been published on the dangers of thyroid and parathyroid surgery in patients who have undergone bariatric surgery. We report a new case to add to the body of literature on this patient population. We also review calcium homeostasis and supplementation as they relate to this situation.

Primary Burkitt lymphoma of the thyroid

December 20, 2013     Samuel Albert, MD
article

Abstract

Primary Burkitt lymphoma of the thyroid is extremely rare. The author describes a new case in a 15-year-old boy who presented with a rapidly enlarging thyroid mass and dyspnea.

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