Osteoid osteoma of mandibular bone: Case report and review of the literature

Publication date: Available online 3 September 2019Source: Journal of Oral and Maxillofacial Surgery, Medicine, and PathologyAuthor(s): Takashi Maehara, Yuka Murakami, Shintaro Kawano, Yurie Mikami, Tamotsu Kiyoshima, Toru Chikui, Noriko Kakizoe, Ryusuke Munemura, Seiji NakamuraAbstractOsteoid osteoma is a benign bone-forming tumor and characterized by its limited growth potential, not exceeding 2 cm. The radiological hallmark of this tumor is a nidus, which is a small round area of relative radiolucency. Osteoid osteoma can involve any bone but is most commonly found in long bones and is extremely rare in the head and neck region. This disease characteristically presents with dull pain, worse at night, and sometimes relieved with NSAIDs. A 24-year-old Japanese woman presented with spontaneous pain and tenderness on the lingual side of her mandibular second molar on the right side. The patient reported that her pain had gradually increased, becoming more continuous and severe and no longer responding to NSAIDs. An initial panoramic radiograph revealed an oval, internally non-uniform, somewhat obscure boundaries in the right mandible. Computed tomography (CT) scan revealed a sclerotic lesion with a delineated central calcified nidus surrounded by a radiolucent band. The interior of the nidus was a non-uniform, irregularly shaped area of high absorption. The nidus was removed with intralesional curettage under general anesthesia. The histopathology of the specimen consis...
Source: Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology - Category: ENT & OMF Source Type: research

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We present a case of a 24-year-old man presenting with 6 weeks of thigh pain. Biopsy demonstrated a benign-appearing GCTB, and final pathology after intralesional curettage yielded the same diagnosis. At 12 weeks postoperatively, a biopsy was performed for a recurrence on imaging, and two independent pathologists confirmed a recurrent GCTB. Single-agent chemotherapy was initiated, yet the patient developed an enlarging soft tissue mass at the same location along with new pulmonary nodules. The patient underwent a third biopsy of the thigh mass as well as a pulmonary wedge resection. The diagnosis at this time was primary g...
Source: Pathology Case Reviews - Category: Pathology Tags: Case Reviews Source Type: research
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Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - Category: ENT & OMF Authors: Source Type: research
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Source: Journal of Orthopaedic Trauma - Category: Orthopaedics Tags: Supplement: PDF Only Source Type: research
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Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
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