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Br J Hosp Med (Lond) 2022 05 14;83(5). Epub 2022 May 14.

Department of Radiology, Medical Faculty, Duzce University, Duzce, Turkey.

Front Surg 2022 2;9:881852. Epub 2022 May 2.

Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.

Background: Osteoid osteoma is a common benign bone tumor, and clinically there is severe local pain that typically worsens at night. The conventional CT-guided radiofrequency ablation (RFA) was widely used in the treatment of osteoid osteoma (OO), which could result in some radiation-related and imprecise complications due to the overdose of radiation exposure. This study aimed to compare the surgical effect of robot-assisted RFA with O-arm navigation and conventional CT-guided RFA in the treatment of OO. Read More

Diagn Interv Imaging 2022 May 3. Epub 2022 May 3.

Department of Radiology, CHU de Besancon, 25030 Besancon, France; Nanomedicine laboratory EA4662. University of Franche-Comté, 25000 Besancon, France. Electronic address:

Purpose: The purpose of this study was to assess the long-term efficacy of CT-guided microwave ablation (MWA) in the treatment of osteoid osteoma. Secondary objectives were to assess early outcome and side-effects of MWA.

Materials And Methods: Twenty-eight consecutive patients (18 men, 10 women) with a median age of 19. Read More

Orthop Surg 2022 May 18;14(5):868-875. Epub 2022 Apr 18.

Department of Orthopaedic Oncology, Beijing Jishuitan Hospital, Beijing, China.

Objectives: To analyze the causes of misdiagnosis and missed diagnosis in spinal osteoid osteoma, and to put forward solutions to improve diagnosis accuracy and treatment efficacy in patients.

Methods: We performed a retrospective cohort study on patients with spinal osteoid osteoma in Beijing Jishuitan Hospital from January 1983 to September 2019. All patients underwent surgery. Read More

J Clin Med 2022 Apr 2;11(7). Epub 2022 Apr 2.

Division of Radiology, Department of Precision Medicine, University of Campania Luigi Vanvitelli, 80138 Naples, Italy.

The family of painful osteocytic tumors includes osteoblastomas and osteoid osteomas-these lesions are considered benign, but they could produce a significant painful symptomatology. Usually, people affected are between 20 s and 30 s. When symptomatic, an effective treatment is mandatory for the management of these lesions to allow for a ful quality of life. Read More

BMC Musculoskelet Disord 2022 Mar 25;23(1):287. Epub 2022 Mar 25.

Department of Orthopaedic Surgery, University Hospital Centre Zagreb, Šalata 6-7, 10 000, Zagreb, Croatia.

Background: Today, intra-articular and juxta-articular osteoid osteomas are treated with arthroscopy and radiofrequency thermal ablation. However, for the case of an elbow joint, arguments are made for the use of a minimally invasive technique to be the optimal choice. This study aims to analyse our experiences of arthroscopically treated elbow osteoid osteomas and to compare it with the published results of both techniques. Read More

Head Neck Pathol 2022 Mar 21;16(1):63-75. Epub 2022 Mar 21.

Department of Diagnostic Sciences, School of Dentistry, Texas A&M University, Dallas, TX, USA.

The 5 edition of the World Health Organization (WHO) Classification of Head and Neck Tumours (2022) comes out only five years after the previous edition, however it presents important updates that run in parallel with the rapid progression involving the increasingly sophisticated molecular investigation and its interpretation, some of which already have therapy-related impact. This manuscript provides an overview of the leading changes introduced in the classification of Odontogenic and Maxillofacial Bone Tumours that encompasses cysts of the jaws, odontogenic tumours, giant cell lesions and bone cysts, and bone and cartilage tumours. This is the first edition that Essential and Desirable Diagnostic Features were added for each entity, so that the most important clinical, microscopic and/or radiologic features were encapsulated and briefly highlighted. Read More

Case Rep Dent 2022 8;2022:7623855. Epub 2022 Mar 8.

Department of Oral Medicine, School of Dentistry, University of Washington, Box 356370, 1959 NE Pacific St, Seattle, WA 98195, USA.

Osteoblastoma and osteoid osteoma are rare benign neoplasms of the jaws. We reviewed current literature surrounding the ongoing debate over similarities and differences of osteoblastoma and osteoid osteoma and present two cases. Both cases are well-demarcated mixed radiodensity mandibular lesions with histological features of osteoblastoma. Read More

Int J Spine Surg 2022 Apr 10;16(2):378-383. Epub 2022 Mar 10.

Department of Neurosurgery, Seoul St. Mary's Hospital, Spine Center, College of medicine, The Catholic University of Korea, Seoul, South Korea.

Background: Osteoid osteoma (OO) is a common benign bone tumor; however, approximately 25% of cases have spine involvement. It is often treated by image-guided radiofrequency ablation to break down the nidus. Few reports have described full endoscopic resection of the lesion, but none have described postoperative remodeling of the lumbar facet joint after surgical resection of an OO. Read More

Am J Otolaryngol 2022 May-Jun;43(3):103404. Epub 2022 Feb 26.

Weill Cornell Medical College, Department of Otolaryngology - Head and Neck Surgery, 2315 Broadway, 3rd Floor, New York, NY 10024, United States of America. Electronic address:

Benign bony tumors of the skull base and paranasal sinuses are uncommon entities, with an overall higher incidence in males. Benign bony tumors may lead to local expansion with resultant mass effect of potentially critical structures. Some benign bony tumors may undergo malignant transformation. Read More

Pediatrics 2022 03;149(3)

Children's National Hospital, George Washington School of Medicine, Washington, DC.

Focused ultrasound (FUS) is a noninvasive therapeutic technology with multiple pediatric clinical applications. The ability of focused ultrasound to target tissues deep in the body without exposing children to the morbidities associated with conventional surgery, interventional procedures, or radiation offers significant advantages. In 2021, there are 10 clinical pediatric focused ultrasound studies evaluating various musculoskeletal, oncologic, neurologic, and vascular diseases of which 8 are actively recruiting and 2 are completed. Read More

BMJ Case Rep 2022 Feb 28;15(2). Epub 2022 Feb 28.

Nuclear Medicine, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India.

Excision of acetabular osteoid osteoma is technically difficult. We report osteoid osteoma of the quadrilateral plate in a 9-year-old girl who presented to us with persistent nocturnal pain, limp and restricted hip joint movement. The child was investigated with CT scan, MRI and triple-phase bone scan. Read More

Children (Basel) 2022 Jan 26;9(2). Epub 2022 Jan 26.

Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-Machi, Abeno-Ku, Osaka 545-8585, Japan.

Osteoid osteoma is a benign tumor. Approximately 20% of these tumors are located in the femur. The tumor primarily occurs in children and is treated by surgical excision or radiofrequency ablation. Read More

Tomography 2022 02 7;8(1):389-401. Epub 2022 Feb 7.

Department of Clinical Science and Translation Medicine, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Roma, Italy.

Osteoid osteoma (OO) is a relatively common, benign bone-forming tumour, which mainly occurs on the long tubular bones of the limbs in adolescents. Usually, the OO is classified based on its localisation. Night-time pain is the major symptom of OO, which is commonly relieved using non-steroidal anti-inflammatory drugs, while surgery is required only for those patients with severe pain or in case of failure of previous conservative treatments. Read More

Orthopade 2022 May 22;51(5):410-414. Epub 2022 Feb 22.

Klinik für Orthopädie, Universität Tübingen, Tübingen, Deutschland.

The intra-articular osteoid osteoma (10% of cases) is a rare clinical finding. Based on atypical clinical signs and various radiological results the period to obtain a diagnosis and initiate the appropriate treatment is often very long. This case reports on a 32-year old female patient with knee pain on flexion and stress, which rarely occurred at night. Read More

Semin Ultrasound CT MR 2022 Feb 14;43(1):88-96. Epub 2021 May 14.

University of Central Florida, Radiology Department, Nemours Children's Hospital, Orlando, FL. Electronic address:

Chronic bacterial osteomyelitis is characterized by progressive inflammatory bone destruction and apposition of new bone most often caused by pyogenic bacteria. Clinical findings are nonspecific, and serum inflammatory markers can be normal. Prompt diagnosis and treatment are essential. Read More

J Clin Med 2022 Jan 29;11(3). Epub 2022 Jan 29.

Department of Radiological Sciences, Ospedali Riuniti, Marche Polytechnic University, 60100 Ancona, Italy.

Osteoid osteoma (OO) is one of the most common benign bone tumors with specific clinical and radiological characteristics. Analgesic therapy and surgical treatment have been considered the only therapy for a long time. Recently, safe and effective new therapeutic options have been introduced, among which percutaneous thermal ablation techniques. Read More

Otol Neurotol 2022 02;43(2):e276-e278

Department of Head and Neck Surgery, The University of Texas M.D. Anderson Cancer Center, Houston, Texas.

This report describes osteoblastoma of the temporal bone found on a well-child visit. The relevant clinical, radiographic, and histologic features are described. The tumor was completely resected via a transtemporal approach. Read More

J Clin Med 2021 Dec 29;11(1). Epub 2021 Dec 29.

Department of Emergency and Interventional Radiology, San Salvatore Hospital, 67100 L'Aquila, Italy.

Previous studies suggest that interventional ablative procedures on bone lesions may weaken the bone, especially when performed through the needle approach. Our purpose was to evaluate, through Computed Tomography (CT), the effects of Magnetic Resonance guided Focused Ultrasound Surgery (MRgFUS) ablation on painful osteoid osteomas and osteoblastomas in terms of bone density and morphological changes. We retrospectively evaluated patients treated at our institution with MRgFUS for superficial, painful osteoid osteoma or osteoblastoma during the last 9 years. Read More

J Clin Med 2021 Dec 27;11(1). Epub 2021 Dec 27.

Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy.

Osteoblastoma (OB) and osteoid osteoma (OO) are benign bone-forming tumors, with nearly identical basic microscopic features. The main difference is dimension (OO has usually a nidus measuring <2 cm in diameter). In addition, OB is biologically more active than OO, with a tendency to grow in size. Read More

Spine Deform 2022 05 6;10(3):727-731. Epub 2022 Jan 6.

Department of Orthopaedic Surgery, Washington University School of Medicine, Washington University Orthopaedics, 4921 Parkview Place, Suite 6B, Campus Box 8605, St. Louis, MO, 63110, USA.

Case: We report a rare case of a right-sided L4-5 facet osteoid osteoma in a 11-year-old female who presented with lower extremity pain, contractures, and gait disturbance in the setting of failed radiofrequency ablation. After open excision and single-level posterolateral fusion with instrumentation, her symptoms resolved and her spinopelvic parameters normalized.

Conclusions: This case highlights the contracture that may occur as a result of neurogenic pain from an osteoid osteoma in close proximity to neural structures. Read More

Radiol Med 2022 Feb 27;127(2):183-190. Epub 2021 Dec 27.

Radiologia Interventistica, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Via Mariano Semmola 52, 80131, Napoli, Italy.

Purpose: To assess efficacy and safety of cone beam computed tomography (CBCT) in the radiofrequency ablation (RFA) of osteoid osteoma (OO) in children and adolescents, and to compare technical success, clinical success, radiation dose and procedure duration time of CBCT guidance to conventional computed tomography (CT) guidance.

Materials And Methods: Between 2015 and 2019, 53 consecutive percutaneous RFA were performed on pediatric patients with CBCT or conventional CT guidance, respectively, in 24 and 29 children and adolescents with 24-month follow-up. Dose area product (DAP) and dose length product (DLP) were recorded, respectively, for CBCT and conventional CT and converted to effective doses (ED). Read More

Semin Musculoskelet Radiol 2021 Dec 22;25(6):725-734. Epub 2021 Dec 22.

Department of Radiology and Biomedical Imaging, University of California, San Francisco, California.

Magnetic resonance-guided focused ultrasound (MRgFUS) is a novel noninvasive therapy that uses focused sound energy to thermally ablate focal pathology within the body. In the United States, MRgFUS is approved by the Food and Drug Administration for the treatment of uterine fibroids, palliation of painful bone metastases, and thalamotomy for the treatment of essential tremor. However, it has also demonstrated utility for the treatment of a wide range of additional musculoskeletal (MSK) conditions that currently are treated as off-label indications. Read More

Tech Hand Up Extrem Surg 2021 Dec 20. Epub 2021 Dec 20.

Department of General and Specialized Surgery, Faculty of Medicine, The Hashemite University, Zarqa Specialty Hospital, Amman, Jordan.

Osteoid osteoma is considered the most common benign bone forming tumor accounting for 12% of all benign bone tumors. The carpus is a rare site for this tumor but quite a few cases were reported before. The lesion can be subperiosteal, cortical or medullary. Read More

Radiol Case Rep 2022 Mar 9;17(3):423-426. Epub 2021 Dec 9.

Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.

Osteoid osteoma is a relatively common benign bone tumor that is most frequently seen on the appendicular skeleton in adolescents and young adults. Here we present the case of a 14-year-old boy presenting with a 10 month history of pain in his left foot which had been misdiagnosed as stress fracture due to its unusual clinical presentation. Magnetic resonance imaging of the left foot revealed a bone lesion with typical features of the osteoid osteoma on the distal part of the second metatarsal bone. Read More

Clin Exp Rheumatol 2022 05 3;40(5):1058. Epub 2021 Nov 3.

Department of Paediatrics, University of Chieti-Pescara, Chieti, Italy.

Indian J Radiol Imaging 2021 Jul 13;31(3):735-739. Epub 2021 Nov 13.

Royal Orthopaedic Hospital, Birmingham, United Kingdom.

Osteoid osteoma (OO) is a benign bone forming tumor characterized by small size and a disproportionate amount of pain. They are most commonly seen between the ages of 5 and 30 years; however, they can be seen in the older patient albeit infrequently. The hands and feet are the least common site of OO among the extremity bones. Read More

Acta Biomed 2021 11 4;92(S1):e2021114. Epub 2021 Nov 4.

1° Clinica Ortopedica, ASST Centro Specialistico Ortopedico Traumatologico Gaetano Pini-CTO, Milan, Italy.

Osteoid osteoma (OO) of the acetabulum is a quite rare pathology, with an overall incidence of 0,5%. Frequently the diagnosis of OO may not be simple to obtain, because the clinical presentation can mimic other common hip pathologies. We present a case report of OO of the anterior/superior edge of the acetabular fossa associated with a degenerative lesion of the acetabular labrum and with a concomitant femoral neck cam. Read More

Cureus 2021 Sep 25;13(9):e18262. Epub 2021 Sep 25.

Department of Surgery, Division of Neurosurgery, Sainte-Justine University Hospital Center, Montreal, CAN.

Osteoid osteomas are benign primary bone tumors that typically arise in posterior vertebrae of the spine. For patients with severe pain or those poorly controlled with non-steroidal anti-inflammatory drugs, surgical management is the mainstay of treatment. The recommended surgical treatment option is complete open excision, although minimally invasive CT-guided percutaneous excision and CT-guided radiofrequency ablation have been reported. Read More

BMJ Case Rep 2021 Oct 28;14(10). Epub 2021 Oct 28.

All India Institute of Medical Sciences, Bhubaneswar, Odisha, India.

Establishing the cause of unilateral leg pain is difficult in the settings of tibial diaphyseal sclerosis. This patient, a 36-year-old woman presented with unilateral pretibial leg pain for past 7 months without history of trauma, infections, systemic or metabolic disease. Besides local deep tenderness, other clinical findings and blood investigations were normal. Read More