Diagnosis and Treatment > Signs and Symptoms > Dysphonia
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Summary
A 54-year-old woman was referred to our hospital with a cervical tumor. CT revealed a cervical tumor extending to the upper mediastinum, tracheal deviation and tumor infiltration in the cervical vessels. She was followed-up because no diagnosis of malignancy was made by cytology. However, 2 months later, a CT scan showed enlargement of the tumor and tracheal stenosis, and a surgical biopsy was performed and she was diagnosed with anaplastic thyroid cancer (ATC). The tracheal tube with tracheal stenosis could not be removed due to the rapid growth of the tumor, necessitating management by mechanical ventilation. Due to the difficulty of surgical resection, she was treated with lenvatinib. A lenvatinib solution was made and administered via a nasogastric tube. After lenvatinib treatment, the tumor volume decreased and the tracheal stenosis improved. The tracheal tube was removed and oral intake became possible. She was discharged and received ambulatory lenvatinib therapy. The tumor was significantly reduced in size, but gradually grew and was exposed through the cervical wound 6 months later. Esophageal perforation occurred 10 months after the start of treatment. Lenvatinib was re-administered via a nasogastric tube. Eleven months later, the patient died of massive bleeding from the exposed cervical tumor. Patients with advanced ATC may require management with mechanical ventilation for airway stenosis or with a nasogastric tube for esophageal stenosis and perforation. We experienced a case in which lenvatinib was safely administered via a nasogastric tube while performing mechanical ventilation.
Learning points:
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An anaplastic thyroid cancer patient under mechanical ventilator management was treated with lenvatinib via a nasogastric tube.
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The lenvatinib solution can easily be prepared and administered via a nasogastric tube.
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The lenvatinib solution was effective for a patient with difficulty in oral intake.
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Lenvatinib could also improve the prognosis of an anaplastic thyroid cancer patient with severe airway and esophageal trouble.
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Summary
In this case report, we describe a 37-year-old male who presented with fever and tender neck mass. Neck ultrasonography revealed a mixed echogenic multiloculated solid-cystic lesion containing turbid fluid and occupying the right thyroid region. Thyroid function tests showed subclinical hyperthyroidism. The patient was initially diagnosed with thyroid abscess and he was subsequently treated with percutaneous aspiration and i.v. antibiotics; however, his clinical symptoms did not improve. Surgical treatment was then performed and a pathological examination revealed a ruptured epidermoid cyst with abscess formation. No thyroid tissue was identified in the specimen. The patient was discharged uneventfully. However, at the 3-month and 1-year follow-ups, the patient was discovered to have developed subclinical hypothyroidism. Neck ultrasonography revealed a normal thyroid gland. This report demonstrates a rare case of epidermoid cyst abscess in the cervical region, of which initial imaging and abnormal thyroid function tests led to the erroneous diagnosis of thyroid abscess.
Learning points:
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Epidermoid cyst abscess at the cervical region can mimic thyroid abscess.
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Neck ultrasonography cannot distinguish thyroid abscess from epidermoid cyst abscess.
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Thyroid function may be altered due to the adjacent soft tissue inflammation.
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Summary
Lingual thyroid (LT) gland is the most common type of ectopic thyroid tissue, but it is an extremely rare presentation. We present a case of a 41-year-old Hispanic female patient complaining of dysphonia and dysphagia. As part of the evaluation, fiber optic flexible indirect laryngoscopy (FIL) was performed which revealed a mass at the base of the tongue. The morphological examination was highly suspicious for ectopic thyroid tissue and the diagnosis was confirmed with neck ultrasound and thyroid scintigraphy. Although the patient presented subclinical hypothyroidism, levothyroxine therapy was initiated with a favorable response which included resolution of symptoms and mass size reduction. Our case portrays how thyroid hormone replacement therapy (THRT) may lead to a reduction in the size of the ectopic tissue and improvement of symptoms, thus avoiding the need for surgical intervention which could result in profound hypothyroidism severely affecting the patients’ quality of life.
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Benign LT and malignant LT are indistinguishable clinically and radiographically for which histopathology is recommended.
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THRT, radioactive iodine 131 (RAI) therapy, and surgical excision are potential management options for LT.
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THRT may lead to size reduction of the ectopic tissue and resolution of symptoms avoiding surgical intervention.
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Summary
The objective this study is to report two cases of thyroid gland invasion by upper mediastinal carcinoma. Mediastinal tumors are uncommon and represent 3% of the tumors seen within the chest. In reports on mediastinal masses, the incidence of malignant lesions ranged from 25 to 49%. The thyroid gland can be directly invaded by surrounding organ cancers. We report these cases contrasting them to the case of a thyroid cancer with mediastinal lesions. Case 1 was a 73-year-old woman who was diagnosed with papillary thyroid carcinoma, and she underwent surgery and postoperative radioactive iodine. Case 2 was a 74-year-old man who was diagnosed with non-small-cell lung carcinoma, favor squamous cell carcinoma, and he underwent chemoradiotherapy. Case 3 was a 77-year-old man who was diagnosed a thymic carcinoma based on pathological findings and referred the patient to thoracic surgeons for surgical management. The images of the three cases were similar, and the differential diagnoses were difficult and required pathological examination. Primary thyroid carcinoma and invading carcinoma originating from the adjacent organs need to be distinguished because their prognoses and treatment strategies are different. It is important to properly diagnose them by images and pathological findings.
Learning points:
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The thyroid gland in the anterior neck can be directly invaded by surrounding organ cancers.
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Primary thyroid carcinoma and invading carcinoma originating from the adjacent organs need to be distinguished because their prognoses and treatment strategies are different.
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It is important to properly diagnose by images and pathological findings.
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Summary
This case report reviews the rare condition of Riedel’s thyroiditis via a patient case. The report highlights the difficulties that one may encounter when managing such a case in regards to patient symptoms, side effects of medications and the relapsing nature of the condition. The case report also highlights novel treatment in the treatment of Riedel’s thyroiditis, rituximab, how this works and the resolution of symptoms that we have achieved with our patient on this treatment.
Learning points:
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Riedel’s thyroiditis is characterised by chronic inflammation, which causes dense fibrosis in the thyroid gland.
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Riedel’s thyroiditis can present with neck pain, dysphagia and dyspnoea with a firm, non-tender mass found on examination.
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Riedel’s thyroiditis is part of the IgG4-related systemic disorders.
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Rituximab is a monoclonal antibody that works against the protein CD20.
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Department of Medical Genetics, National Taiwan University Hospital, Taipei, 100, Taiwan
Graduate Institute of Medical Genomics and Proteomics, National Taiwan University, Taipei, 100, Taiwan
Graduate Institute of Clinical Medicine, National Taiwan University, Taipei, 100, Taiwan
Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, 100, Taiwan
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Department of Pathology, National Taiwan University Hospital, Taipei, 100, Taiwan
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Department of Medicine, College of Medicine, National Taiwan University, Taipei, 100, Taiwan
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Department of Medicine, College of Medicine, National Taiwan University, Taipei, 100, Taiwan
Department of Social Medicine, College of Medicine, National Taiwan University, Taipei, 100, Taiwan
Department of Medicine, Cathay General Hospital, Taipei, 106, Taiwan
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Department of Medicine, College of Medicine, National Taiwan University, Taipei, 100, Taiwan
Department of Internal Medicine, China Medical University Hospital, Taichung, 404, Taiwan
Department of Internal Medicine, China Medical University, Taichung, 404, Taiwan
Search for other papers by Ching-Chung Chang in
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Summary
We report a case of follicular thyroid carcinoma with concomitant NRAS p.Q61K and GNAS p.R201H mutations, which manifested as a 13.5 cm thyroid mass with lung, humerus and T9 spine metastases, and exhibited good response to radioactive iodine treatment.
Learning points
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GNAS p.R201H somatic mutation is an activating or gain-of-function mutation resulting in constitutively activated Gs-alpha protein and downstream cAMP cascade, independent of TSH signaling, causing autonomously functioning thyroid nodules.
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NRAS p.Q61K mutations with GNAS p.R201H mutations are known for a good radioactive iodine treatment response.
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Further exploration of the GNAS-activating pathway may provide therapeutic insights into the treatment of metastatic follicular carcinoma.
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Summary
Haemorrhage of a parathyroid adenoma is a rare clinical presentation. This report describes a previously fit and well 54-year-old woman who presented with acute neck swelling and pain with an overlying ecchymosis. Admission laboratory tests revealed a raised parathyroid hormone and hypercalcaemia. A computed tomography (CT) scan showed widespread anterior cervical haemorrhage and a lesion at the inferior pole of the left thyroid gland. A working diagnosis of spontaneous haemorrhage from a parathyroid adenoma was made. As she was haemodynamically stable, she was treated conservatively with a period of observation in hospital to monitor for signs of neck organ compression. Follow-up imaging with CT, ultrasound and sestamibi confirmed the likely source of haemorrhage as a parathyroid nodule with significant vascularity. The diagnosis was confirmed on histopathological analysis after elective surgical exploration of the neck 6 months after her presentation. This revealed a benign parathyroid adenoma with evidence of acute and chronic bleeding. The patient made a full recovery with immediate normalisation of her biochemistry post-operatively. Despite developing a hoarse voice in the immediate post-operative period, this resolved completely within 1 month. This case report provides further evidence to support a minimal delay for elective surgery after conservative management to reduce the risks associated with recurrent bleeding.
Learning points
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Haemorrhage of a parathyroid adenoma should be a differential for all cases of acute cervical swelling or ecchymosis with no precipitating factor.
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The clerking should identify any risk factors for endocrine disease.
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Blood tests to screen for abnormal parathyroid biochemistry should be performed on admission.
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Detailed imaging of the neck is essential to identify the source of haemorrhage and risk of compression to vital neck organs.
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Conservative management is a suitable option for patients who remain haemodynamically stable but all should undergo a period of observation in hospital.
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Conservatively managed patients should be considered for definitive surgical exploration within a month of presentation to avoid the risks of recurrent bleeding.
