Painless fibro-osseous lesion of the rib resembling osteoid osteoma: A report of six cases

Ossifying fibroma (OF) is a rare, benign, fibro-osseous lesion of the jawbone characterised by replacement of the normal bone with fibrous tissue. The fibrous tissue shows varying amount of calcified structures resembling bone and/or cementum. The central variant of OF is rare, and shows predilection for mandible among the jawbone. Although it is classified as fibro-osseous lesion, it clinically behaves as a benign tumour and can grow to large size, causing bony swelling and facial asymmetry. This paper reports a case of large central OF of mandible in a 40-year-old male patient. The lesion was treated by segmental resection of mandible. Reconstruction of the surgical defect was done using avascular fibula bone graft. Role of three-dimensional printing of jaw and its benefits in surgical planning and reconstruction are also highlighted.

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Unique Osteoid Osteoma of the Frontal Sinus From the Late Roman Empire

Journal of Craniofacial Surgery ◽

10.1097/scs.0000000000005312 ◽

2019 ◽

Vol 30 (4) ◽

pp. 965-966 ◽

Cited By ~ 2

Author(s):

Elena Varotto ◽

Maria Teresa Magro ◽

Rodolfo Brancato ◽

Carmine Lubritto ◽

Lorenzo Memeo ◽

...

Keyword(s):

Roman Empire ◽

Osteoid Osteoma ◽

Frontal Sinus ◽

Late Roman

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FOS Expression in Osteoid Osteoma and Osteoblastoma

The American Journal of Surgical Pathology ◽

10.1097/pas.0000000000001355 ◽

2019 ◽

Vol 43 (12) ◽

pp. 1661-1667 ◽

Cited By ~ 7

Author(s):

Fernanda Amary ◽

Eva Markert ◽

Fitim Berisha ◽

Hongtao Ye ◽

Craig Gerrand ◽

...

Keyword(s):

Osteoid Osteoma ◽

Fos Expression

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Detection of Bone Marrow Edema in Patients with Osteoid Osteoma Using Three-Material Decomposition with Dual-Layer Spectral CT

Diagnostics ◽

10.3390/diagnostics11060953 ◽

2021 ◽

Vol 11 (6) ◽

pp. 953

Author(s):

Florian T. Gassert ◽

Johannes Hammel ◽

Felix C. Hofmann ◽

Jan Neumann ◽

Claudio E. von Schacky ◽

...

Keyword(s):

Bone Marrow ◽

Osteoid Osteoma ◽

Bone Marrow Edema ◽

Volume Fraction ◽

Imaging Findings ◽

Spectral Ct ◽

Material Decomposition ◽

Negative Imaging ◽

Interreader Agreement ◽

Marrow Edema

The aim of this study is to assess whether perifocal bone marrow edema (BME) in patients with osteoid osteoma (OO) can be accurately detected on dual-layer spectral CT (DLCT) with three-material decomposition. To that end, 18 patients with OO (25.33 ± 12.44 years; 7 females) were pairwise-matched with 18 patients (26.72 ± 9.65 years; 9 females) admitted for suspected pathologies other than OO in the same anatomic location but negative imaging findings. All patients were examined with DLCT and MRI. DLCT data was decomposed into hydroxyapatite and water- and fat-equivalent volume fraction maps. Two radiologists assessed DLCT-based volume fraction maps for the presence of perifocal BME, using a Likert scale (1 = no edema; 2 = likely no edema; 3 = likely edema; 4 = edema). Accuracy, sensitivity, and specificity for the detection of BME on DLCT were analyzed using MR findings as standard of reference. For the detection of BME in patients with OO, DLCT showed a sensitivity of 0.92, a specificity of 0.94, and an accuracy of 0.92 for both radiologists. Interreader agreement for the assessment of BME with DLCT was substantial (weighted κ = 0.78; 95% CI, 0.59, 0.94). DLCT with material-specific volume fraction maps allowed accurate detection of BME in patients with OO. This may spare patients additional examinations and facilitate the diagnosis of OO.

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Comment on Payo-Ollero J, Moreno-Figaredo V, Llombart-Blanco R, Alfonso M, San Julián M, Villas C. Osteoid osteoma in the ankle and foot. An overview of 50 years of experience. Foot Ankle Surg 2021;27:143-9

Foot and Ankle Surgery ◽

10.1016/j.fas.2021.04.008 ◽

2021 ◽

Author(s):

Diogo Goulart Corrêa ◽

Clarissa Canella ◽

Flavia Martins Costa

Keyword(s):

Osteoid Osteoma ◽

Years Of Experience ◽

Ankle And Foot

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Osteoid Osteoma of the Atlas in a Boy: Clinical and Imaging Features–A Case Report and Review of the Literature

Neuropediatrics ◽

10.1055/s-0040-1715488 ◽

2020 ◽

Author(s):

Adelaide Valluzzi ◽

Salvatore Donatiello ◽

Graziana Gallo ◽

Monica Cellini ◽

Antonino Maiorana ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Osteoid Osteoma ◽

Soft Tissues ◽

Tissue Reaction ◽

Imaging Features ◽

Review Of The Literature ◽

Resonance Imaging ◽

Radiological Findings ◽

First Case ◽

Upper Cervical

AbstractOsteoid osteoma is a benign osteoblastic tumor, quite uncommon in the spine. We report a case of an osteoid osteoma involving the atlas in a 6-year-old boy, who presented with suboccipital pain and torticollis. Initial radiological findings were ambiguous as magnetic resonance imaging showed mainly edema of upper cervical soft tissues. The subsequent computed tomography depicted a lesion of left lamina of C1. As conservative treatment failed, the lesion was surgically resected and the patient became pain free. To our knowledge, this is the first case of osteoid osteoma involving the atlas associated with abnormal soft tissue reaction reported in literature.

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