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.

Laryngeal inflammatory myofibroblastic tumor

December 19, 2014     Fábio M. Girardi, MD, MSc; Ciro W. Fontana, MD; Ricardo G. Kroef, MD; Marinez B. Barra, MD; Felipe O. Detanico, MD; Nilton T. Herter, MD
article

Inflammatory myofibroblastic tumor seldom involves the larynx, as only about 50 to 60 cases have been described in the literature. Even though these tumors are often not aggressive, they have the potential for invasion and local recurrence. We describe the case of a 27-year-old man who was admitted to an emergency department with signs of upper airway obstruction secondary to an obstructive mass. Histology identified the mass as an inflammatory myofibroblastic tumor of the subglottis. The patient underwent an emergency tracheotomy followed by a partial laryngectomy. During 14 months of follow-up, he remained free of active disease.

Introduction Inflammatory myofibroblastic tumor is a recently described disease that was previously reported as a reactive inflammatory process. Its etiology is unknown, but theories range from an exacerbated response to local trauma to neoplastic processes. Some recent genetic and cytogenetic studies have revealed new characteristics of these...

Understanding the regulation of pharmaceutical drug promotion

December 19, 2014     Natalie A. Krane, BS; Robert T. Sataloff, MD, DMA, FACS
article

Applying print regulations to social media promotional material is exceedingly difficult, as multiple elements, such as communication on social media (e.g., consumer commentary), are not contained within print promotion.

Understanding the regulation of pharmaceutical drug promotion

Necrotizing sialometaplasia of the nasopharynx with parapharyngeal extension: Case report and brief review of the literature

December 19, 2014     Sanjeev Kumar, MS, MRCS, DOHNS; Asad Qayyum, FRCS, AFRCS, DLO; Nazir Bhat, MS, FRCS(ORL-HNS)
article

We report a rare case of necrotizing sialometaplasia of the right lateral nasopharynx with extension into the right parapharyngeal space in a 39-year-old man. Since this is a self-limiting condition, the patient began to improve spontaneously over the next few weeks, and he experienced a complete recovery. Necrotizing sialometaplasia is an uncommon condition that is known to involve the palate; nasopharyngeal involvement is very rare, and to the best of our knowledge, extension into the parapharyngeal area has not been previously reported in the English-language literature. This condition poses a diagnostic dilemma because it closely mimics a malignancy, and failure to recognize it can result in unnecessary investigations and extensive surgery. We also review the literature on necrotizing sialometaplasia of the oropharyngeal area.

Clival fibrous dysplasia: Case series and review of the literature

December 19, 2014     Selena E. Heman-Ackah, MD, MBA; Holly Boyer, MD; Rick Odland, MD, PhD
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Slightly more than 30 cases of fibrous dysplasia involving the clivus have been reported in the international literature, primarily in the neurosurgery and radiology literature. In this article we present a series of 4 cases involving patients with clival fibrous dysplasia. In a retrospective chart review, 4 patients presenting to tertiary care centers from January 1, 2006, to January 31, 2008, were identified and their presenting symptoms and radiologic findings reviewed. Based on our literature review, we describe the presenting symptoms of patients with clival fibrous dysplasia and characterize the findings of imaging studies associated with this disorder. All patients in this series had a presenting complaint of headache or cranial nerve deficits, which is consistent with previous reports found in our literature review. Additional presenting symptoms that have been reported include dysphagia and a nontender occipital mass; there was also an incidental asymptomatic finding. Magnetic resonance imaging findings are consistent with those associated with fibrous dysplasia at other sites of the body. We conclude that clival involvement in monostotic fibrous dysplasia may not be as rare as previously perceived.

Iatrogenic fracture of the superomedial orbital rim during frontal trephine irrigation

December 19, 2014     Douglas Angel, MD; Rebecca Zener, MD; Brian W. Rotenberg, MD, MPH, FRCSC
article

Frontal sinus trephination (FST) has numerous applications in the treatment of acute and chronic sinus disease. This procedure involves making an incision at the medial aspect of the supraorbital rim and then drilling the sinus's anterior table. Placement of a frontal trephine allows for irrigation of the frontal recess in order to evacuate the frontal sinus in a minimally invasive manner. Orbital injury is a rare complication of FST. We present a case of previously unreported orbital compartment syndrome secondary to iatrogenic fracture of the superomedial orbital rim as a complication of frontal trephine irrigation. We also review the literature on the applications of FST and its associated complications, and we discuss orbital compartment syndrome as a complication of sinus surgery.

Introduction Several surgical approaches to the frontal sinus have been described, including frontal sinusotomy, endoscopic endonasal sinusotomy, and various combined approaches that involve both endoscopic techniques and frontal sinus trephination (FST). In 1750, Runge1 first described the use of FST in treating complications of acute frontal...

Retropharyngeal masses in neurofibromatosis type 1: Imaging findings in 2 cases

December 19, 2014     Roy Riascos, MD; Jennifer Dodds, MD; Nirav Patel, MD
article

Neurofibromatosis type 1 (NF-1) affects mesenchymal development via multisystemic manifestations. We present 2 cases of NF-1 that manifested as a retropharyngeal mass-1 as a lateral cervical meningocele in a 60-year-old man and the other as a focal neurofibroma in a 37-year-old man. Contrast-enhanced magnetic resonance imaging (MRI) was invaluable in identifying the exact nature of the 2 lesions; no contrast enhancement was seen in the case of the meningocele, and enhancement was seen in the case of the neurofibroma. These 2 cases illustrate the importance of the history and contrast-enhanced MRI in managing NF-1 patients with a retropharyngeal mass.

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.

Introduction While non-Hodgkin lymphoma (NHL) is an uncommon malignancy, its incidence is higher among patients who have an underlying autoimmune disease such as Sjögren syndrome, rheumatoid arthritis, systemic lupus erythematosus (SLE), celiac disease, and dermatitis herpetiformis. SLE has been associated with a 2.7-fold increase in the risk of...

Castleman disease of the parotid gland in a pediatric patient: A case report

October 17, 2014     Sudesh Kumar, MS, DNB; Rashid Al Abri, MD, FRCS; Nasreen Abdul Kadir, MD; Dilani Lokuhetty, MD
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Abstract

Castleman disease, also called angiofollicular lymph node hyperplasia, is a rare lymphoproliferative disorder characterized by enlarged hyperplastic lymph nodes. Affected patients usually present with mediastinal lymphadenopathy; sometimes other groups of lymph nodes are involved, with or without associated systemic manifestations. We report a case of Castleman disease involving the intraparotid lymph node in a 15-year-old boy who presented with a 3-month history of a painless swelling of the right parotid gland. Fine-needle aspiration cytology of the mass revealed only reactive hyperplasia. The diagnosis of Castleman disease was established on histopathologic examination of the resected mass. We discuss the clinical course, histopathologic features, radiologic characteristics, and management of Castleman disease of the parotid gland in a pediatric patient.

Introduction Castleman disease was first described by Castleman in 1956 in a group of patients who presented with a thymoma-like mass in the anterior mediastinum.1 Its etiology is unknown, and it can easily be misdiagnosed because of a lack of specific presenting clinical features and distinguishing radiologic characteristics. Although surgery is...

Distal nasolacrimal duct showing the valve of Hasner

October 17, 2014     Joseph P. Mirante, MD, FACS; Dewey A. Christmas, MD; Eiji Yanagisawa, MD, FACS
article

Recognition of the location of the nasolacrimal duct opening is important to prevent its damage while performing an intranasal inferior meatal antrostomy or creating a window transantrally in the inferior meatal wall during a Caldwell-Luc procedure.

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