Osteoid osteoma of the ethmoid sinus: A rare diagnosis
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Introduction
Osteoid osteomas are benign osseous lesions that are extremely rare in the ethmoid sinuses. Osteoid osteomas can be easily identified radiologically by the presence of a central nidus surrounded by dense sclerotic bone on computed tomography (CT). In this article, we report a new case of osteoid osteoma that originated in the ethmoid...
Endoscopic view of an asymmetric roof of the ethmoid sinus
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This patient who had sinus surgery 15 years previously presented with recurrent bilateral sinusitis involving the ethmoid and maxillary sinuses as shown by computed tomography (CT). Of note was the CT finding of marked differences in the ethmoid roof on the right and left sides. There was a significant difference in the height of the ethmoid roof...
Mycobacterial tuberculosis superimposed on a Warthin tumor
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Introduction
Warthin tumor is the second most common tumor of the parotid gland.1 It has both epithelial and lymphoid components.1 Parotid tuberculosis (TB) is an uncommon clinical entity, accounting for only 2.8% of all parotid diseases.2 To the best of our knowledge, only 6 cases of TB infection within a Warthin tumor have been reported in the...
Bilateral congenital lacrimal fistulae: A case report
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Introduction
A congenital lacrimal fistula is a rare developmental anomaly that is caused by an interruption in the embryogenesis of the nasolacrimal system. While it is often asymptomatic, some patients present with epiphora or discharge that requires surgical intervention. Rasor described the first reported case of congenital lacrimal fistula in...
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Giant tracheocele with multiple congenital anomalies
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Introduction
Tracheocele is an uncommon abnormality that occurs as the result of the protrusion of mucosa through a defect in the tracheal wall. The protrusion leads to the formation of a large, single, air-filled cavity in the neck. Its pathophysiology differs from that of a tracheal diverticulum, in which multiple sacs develop.1,2
Primary acquired cholesteatoma
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A 40-year-old woman with a history of multiple ear infections as a child presented with right-sided hearing loss and aural pressure. Otoscopy revealed a pars flaccida retraction that contained crusted debris, as well as a white mass in the posterior mesotympanum (figure). The patient's audiogram showed a 25-dB right conductive hearing loss....
Diffuse large B-cell lymphoma of the nasopharynx
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Figure 1. A: Photograph shows a gross illustration of the “fish flesh” appearance of a cut lymphoid tumor. B: A vague nodularity is seen in this otherwise effaced nasopharyngeal tissue.
Laryngeal schwannoma excised under direct laryngoscopy: Case report
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Introduction
Schwannomas (neurilemmomas) are benign encapsulated tumors that originate in the Schwann cells that sheathe the fibers of the peripheral, cranial, and autonomic nerves outside the central nervous system.1, 2 Malignant transformation is rare. The head and neck region is frequently involved (25 to 45% of cases), but schwannomas of the...
Primary intraosseous cavernous hemangioma of the zygoma: A case report and literature review
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Introduction
Intraosseous hemangiomas account for less than 1% of all tumors.1 Their most common sites are the calvaria and the vertebral column.1 Their presence in the midface, including the zygoma, has been described only in a few isolated case reports.2


