Cyst

Steatocystoma simplex of the infratemporal fossa: An uncommon location for a rare entity

January 1, 2011     Yekaterina A. Koshkareva, MD, Gregory S. Weinstein, MD, Michael Feldman, MD, and Gul Moonis, MD
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Abstract

Steatocystoma simplex is a rare entity characterized by the presence of a solitary cutaneous cyst derived from a sebaceous duct or gland. Multiple locations of this lesion have been reported previously. The purpose of this article is to report the unusual presentation of steatocystoma simplex as an infratemporal fossa mass. To the best of our knowledge, no case of steatocystoma simplex at this site has been previously reported. We also describe the radiologic and pathologic features of this entity, which might aid in diagnosis and management, and we discuss its etiology and treatment options.

Lymphoepithelial cyst of the palatine tonsil

December 17, 2010     Jinsu Choi, MD, Kisik Kim, MD, and Bosung Kim, MD
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Role of irrigation with hypertonic saline for a recurrent skull base hydatid cyst: Case report and review of the literature

August 31, 2010     Sadaf Zia, FCPS, Ather Enam, MD, Iftikhar Salahuddin, MD, and Aslam Khan, MD
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Abstract

Hydatid cyst is a parasitic disease caused by the tapeworm Echinococcus granulosus. This disease is a rare finding in the head and neck region, and its presentation varies according to the area involved. We report the case of a 25-year-old woman who presented with bilateral neck swelling, which was found on histopathologic examination to be caused by a hydatid cyst. The patient underwent surgical drainage of the cyst and a modified radical mastoidectomy, followed by a 3-month course of treatment with albendazole. However, she experienced a recurrence in the left neck region 1 year later. At that time, reexploration of the left mastoid cavity was performed, with debridement of diseased occipital bone and foramen magnum. Intraoperatively, we used a novel method of saline irrigation with 3% hypertonic saline, previously not tested on exposed nerves, in an attempt to prevent further recurrence. Four years after the second surgery, no disease recurrence was found, and no neurologic sequelae were noted. We conclude that hypertonic saline irrigation can be considered as an option for preventing recurrence in cases that are difficult to clear surgically, especially around cranial nerves, although more studies are needed to document the safety of this approach.

Adult nasal dermoid sinus cyst

July 31, 2010     Eugene A. Chu, MD and Lisa E. Ishii, MD
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Abstract

Midline congenital nasal lesions are rarely encountered in adults. We present the case of a 31-year-old man with a nasal dermoid sinus cyst who presented with a nasal dorsal abscess. We review the embryology of nasal dermoid sinus cysts, and we discuss their presentation, evaluation, and management in adults.

Cysts of the fossa of Rosenm├╝ller: Report of two cases

July 31, 2010     Simon K.W. Lloyd, BSc(Hons), MPhil, FRCS(ORL-HNS), Riccardo A. Di Cuffa, DOHNS, MRCS, MRCGP, Felicity K. Seymour, MA, DOHNS, FRCS(ORL-HNS), Lloyd E. Savy, BSc(Hons), FRCR, and Henry R. Grant, FRCS
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Abstract

Cystic lesions of the nasopharynx are rare. Two cases of mucous retention cysts originating from the fossa of Rosenmüller are described, together with their characteristic radiologic appearance, which allows differentiation from other types of lesions in this region. The differential diagnosis and treatment options are discussed.

Ectopic thymic tissue presenting as a neck mass in children: A report of 3 cases

April 30, 2010     Estie Meyer, MBChB, FCORL(SA), Wakisa Mulwafu, MBChB, FCORL(SA), Johannes J. Fagan, MBChB, FCS(SA), MMed(Otol), Robin A. Brown, MBChB, DCH(SA), FRCS(Edin), and Kathryn Taylor, MBChB, DCH(SA), MMed(Anat Path)
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Abstract

The presentation of ectopic cervical thymic tissue as an anterior neck mass is rare. We report 3 similar cases in 3 boys-2 who had a thymic cyst and 1 who had an ectopic cervical thymus. We discuss the radiographic presentation on ultrasound and magnetic resonance imaging in these cases. We also review the typical histologic picture; histology is the only way of diagnosing this condition.

Vocal fold cyst

March 31, 2010     Amy L. Rutt, DO and Robert T. Sataloff, MD, DMA, FACS
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Dermoid cyst of the parotid gland

February 1, 2010     Behrad Aynehchi, MD, Jason G. Newman, MD, and John S. Brooks, MD
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Abstract

A dermoid cyst is an ectodermally differentiated form of teratoma. Its occurrence in the parotid gland is very rare. Such a presentation must be properly evaluated in order to rule out malignancy. We describe the diagnostic evaluation and surgical management of a parotid dermoid cyst in an 18-year-old man. We also review the embryologic pathogenesis of the tumor and the usefulness of the physical examination, preoperative fine-needle aspiration cytology, magnetic resonance imaging, and computed tomography in evaluating the extent of the tumor, its histologic features, and its cystic characteristics. Finally, we discuss the role of surgical management in terms of preserving facial nerve integrity and preventing recurrence.

Calcified maxillary cyst secondary to a foreign-body reaction at the site of a remote tooth extraction

January 1, 2010     Alexander Langerman, MD, Farhad Sigari, MS, MD, and Robert Naclerio, MD
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Abstract

Unilateral sinus disease has a wide differential diagnosis. When a patient has a history of maxillary dental work on the same side as the sinusitis, a foreign entity introduced during or subsequent to the dental manipulation must be considered. We present a case of calcified maxillary cyst that was discovered at the site of a remote tooth extraction. Pathologic analysis revealed the presence of vegetable matter within the cyst. To the best of our knowledge, no case of a maxillary cyst secondary to vegetable matter has been previously reported in the literature.

A large, persistent, solitary vellus hair cyst in the postauricular area

December 1, 2009     Joo-Hyung Lee, MD, Min-Young Bae, MD, Byoung-Hoon Lee, MD, and Min-Kyo Jung, MD
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Abstract

Vellus hair cysts typically appear as numerous small papules in the precordial area in children. Treatment is generally not necessary as most cases resolve spontaneously. We report a case of a vellus hair cyst that was unique in that it manifested as a solitary mass in the postauricular area and it had persisted for 16 years. The tumor was surgically excised. We also review the literature on this condition.

First branchial cleft cyst (type II)

October 31, 2009     Gadodia Ankur, MD, DNB, Ashu Seith Bhalla, MD, and Raju Sharma, MD
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Laryngeal oncocytic cyst presenting with an acute onset of stridor

June 30, 2009     Paramesh M. Puttasiddaiah, MRCS, Sandeep Berry, MRCS, Heikki B. Whittet, FRCS, and Manoj Kumar, FRCS
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Abstract

Oncocytic lesions of the larynx are rare. When they have occurred, their presentation has been varied; these tumors may be completely asymptomatic and discovered incidentally, but more commonly they present with voice alteration. We report a case of an oncocytic cyst in a patient who presented with an acute onset of stridor. We also discuss the clinical manifestations and management of laryngeal oncocytic cyst and its relevant pathologic features.

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