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Objective: First, to determine the frequency and spectrum of osteoid osteoma (OO)-mimicking lesions among presumed OO referred for radiofrequency ablation (RFA). Second, to compare patient sex and age, lesion location, and rates of primary treatment failure for OO based on histopathology results.

Materials And Methods: A retrospective review was performed of all first-time combined CT-guided biopsy/RFA for presumed OO at a single academic center between January 1990 and August 2023.

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Osteoid osteoma is a benign tumor of the bone which tends to occur in diaphysis or metaphysis of the long bones. The lesion is generally intraosseous with vague clinical symptoms, hence given the name "great mimicker". When located subperiosteally and juxtaarticulary, atypical clinical presentation and radiological may lead to a delayed or missed diagnosis.

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Rhinolithiasis misdiagnosed as intranasal osteoma: Diagnostic challenges in the telehealth era.

SAGE Open Med Case Rep

October 2023

Department of Otolaryngology-Head and Neck Surgery, Stanford Health Care, Stanford, CA, USA.

Rhinolithiasis is a rare clinical presentation and may be a diagnostic challenge, often mimicking other intranasal pathologies and difficult to differentiate based on imaging alone. We present the case of a 50-year-old patient with rhinolithiasis who presented with chronic left nasal obstruction and unilateral cyclic pain with foul discharge. After review of her imaging, she was initially misdiagnosed with an intranasal osteoma via telehealth and scheduled for surgical resection.

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Background: The diagnosis of spinal tuberculosis often relies on clinical, radiological, and laboratory findings, particularly in resource-constrained settings. However, numerous noninfectious conditions exhibit similar clinical and radiological features to spinal tuberculosis, leading to potential misdiagnosis in the absence of microbiological or histopathological confirmation. This study aims to present a case series from a developing country, highlighting noninfectious conditions that mimic spinal tuberculosis.

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