scholarly journals Intraosseous Schwannoma of the Calcaneus: A Rare Tumor of the Bone

2018 ◽  
Vol 2018 ◽  
pp. 1-4
Author(s):  
Bahtiyar Haberal ◽  
Duygu Turkbey Simsek ◽  
Ekin Kaya Simsek
Keyword(s):  
Cystic Lesion ◽  
Plain Radiograph ◽  
Posterior Part ◽  
Heel Pain ◽  
Primary Bone Tumors ◽  
Intraosseous Schwannoma ◽  
Long Time ◽  
Primary Bone ◽  
Magnetic Resonance Imaging Mri ◽  
Extended Curettage

Schwannomas (also called neurilemmomas) are slow-growing nerve sheath tumors derived from Schwann cells. However, intraosseous schwannoma is a rare entity with an incidence of only 0.2% in overall primary bone tumors. The purpose of this case report is to present a case of an intraosseous schwannoma of the calcaneus. A 35-year-old woman was admitted to our outpatients’ clinics with a complaint of long-time right heel pain (for approximately eight months). After a suspicious cystic lesion was observed on the patient’s plain radiograph examination, a magnetic resonance imaging (MRI) was performed. The MRI showed a 22 × 20 mm intraosseous cystic lesion at the posterior part of the calcaneus. Extended curettage and iliac bone grafting were performed. In the presence of postoperative histopathologic and immunohistochemical examination, histopathologic diagnosis of the patient was reported as intraosseous schwannoma. After 4 weeks of nonweight-bearing, she completely recovered with no pain. In conclusion, intraosseous schwannoma of the calcaneus must be kept in mind for patients who have chronic heel pain.

scholarly journals Intraosseous schwannoma of the glenoid: case report and literature review

SICOT-J ◽  
2021 ◽  
Vol 7 ◽  
pp. 2
Author(s):  
Pieter Reyniers ◽  
Hazem Wafa ◽  
Friedl Sinnaeve ◽  
Philippe Debeer ◽  
Raf Sciot
Keyword(s):  
Bone Tumors ◽  
Long Bones ◽  
Rare Presentation ◽  
Correct Treatment ◽  
Primary Bone Tumors ◽  
Intraosseous Schwannoma ◽  
Spindle Cells ◽  
Orthopaedic Oncologist ◽  
Primary Bone

Intraosseous schwannomas represent an extremely rare subgroup of schwannomas, accounting for <1% of all primary bone tumors. They mostly occur in the mandible, the maxilla, the sacrum, and they are also seen in long bones. We herein report a rare presentation of an intraosseous schwannoma in the glenoid of a 49-year-old patient. She complained of shoulder pain and was referred to the orthopaedic oncologist after detection of a suspicious lesion on imaging. Biopsy revealed benign spindle cells and immunohistochemistry was positive for S100. Because of the rarity of these intraosseous schwannomas it is important to recognize their radiological and histological features and make a differential diagnosis with other lytic tumors. Only if these characteristics are recognized, correct treatment can be given with definite curettage and bone grafting and correct follow-up with avoidance of unnecessary adjuvant therapy.

scholarly journals A Giant Sacrococcygeal Chordoma: Case Report and Literature Review

2019 ◽  
Vol 7 (2) ◽  
pp. 60
Author(s):  
Xiang Yang ◽  
Seidu A. Richard ◽  
Wei Zhao ◽  
Jiagang Liu ◽  
Siqing Huang
Keyword(s):  
Tumor Resection ◽  
Immunohistochemical Analysis ◽  
Low Grade ◽  
Case Presentation ◽  
Primary Bone Tumors ◽  
Case Surgery ◽  
Primary Bone ◽  
Malignant Lesions ◽  
Magnetic Resonance Imaging Mri ◽  
Tomographic Angiography

Introduction: Chordomas are rare low-grade malignant lesions that are mostly seen in the spine. They constitute about 1% of intracranial tumors and 3-4% of all primary bone tumors. The principal spinal location is usually the sacrococcygeal and infrequently the sphenooccipital and cervical areas. Case Presentation: We present a 74-year-old man with a huge sacrococcygeal mass extending to both buttocks. Computerized tomography (CT-scan) and magnetic resonance imaging (MRI) as well as computerized tomographic angiography (CTA) evaluations were suggestive to chordoma. Immunohistochemical analysis confirmed the diagnosis after the patient was successfully operated on. All aggravating symptoms resolved after the operation. Conclusion: The management of giant sacrococcygeal chordomas can be very challenging but with all-inclusive treatment, complete cure is achievable although recurrence can occur. In our case, surgery alone was curative. Preoperative CTA aided us in achieving total tumor resection.

scholarly journals Neurothekeoma of petrous apex: A rare entity

2013 ◽  
Vol 02 (02) ◽  
pp. 210-212
Author(s):  
Sunitha Kumaran ◽  
Nandita Ghosal ◽  
Saikiran Narayanam ◽  
Sanjaya Viswamitra ◽  
Zarina Assis
Keyword(s):  
Internal Auditory Canal ◽  
Petrous Apex ◽  
Primary Bone Tumors ◽  
Nerve Sheath Tumors ◽  
Time In Literature ◽  
Bony Lesion ◽  
Primary Bone ◽  
Magnetic Resonance Imaging Mri ◽  
Extradural Approach ◽  
First Time

Abstract Intraosseous nerve sheath tumors are very rare tumors accounting for lesser than 0.2% of primary bone tumors. We present an 18-year-old female who presented with left facial paresis for the last 1 year. Magnetic resonance imaging (MRI) demonstrated expansile, multiseptated, enhancing bony lesion in the left petrous apex. There was also abnormal enhancement of the 7-8th nerve complex within the internal auditory canal. Tumor was excised by subtemporal extradural approach. The lesion was diagnosed as intraosseous neurothekeoma on histopathology. This is an extremely rare tumor and its MRI appearance in this location is being described for the first time in literature.

scholarly journals Intraosseous Schwannoma of the Mandible

2012 ◽  
Vol 1 (1) ◽  
pp. 48-50 ◽  
Author(s):  
Timuçin Baykul ◽  
Hasan Onur Simsek ◽  
Muge Cina Aksoy ◽  
Cagri Can
Keyword(s):  
Peripheral Nerve ◽  
Schwann Cells ◽  
Bone Tumors ◽  
Osteolytic Lesion ◽  
Histological Features ◽  
Primary Bone Tumors ◽  
Intraosseous Schwannoma ◽  
Radiologic Examination ◽  
Primary Bone

ABSTRACT Schwannoma originates from Schwann cells of peripheral nerve sheaths and account for 1% of benign primary bone tumors. The site most commonly involved is the mandible. We present a 47-year-old woman with schwannoma at mandible. Neurosensory examination comprised paresthesia at left side of the mandible. Radiologic examination showed a well-defined unilocular osteolytic lesion which located in the left side of the mandible. The lesion was surgically curetted. The patient is under our follow-up. In this report, clinical and histological features and treatment of the schwannoma are discussed. How to cite this article Simsek HO, Aksoy MC, Can C, Baykul T. Intraosseous Schwannoma of the Mandible. Int J Exper Dent Sci 2012;1(1):48-50.

Scintigraphy with 99m Tc-Phosphonate and 67Gallium in Patients Suspected of Primary Bone Tumors

1982 ◽  
Vol 21 (04) ◽  
pp. 136-139 ◽  
Author(s):  
C.-J. Edeling
Keyword(s):  
Soft Tissue ◽  
Bone Scintigraphy ◽  
Primary Tumor ◽  
Bone Tumors ◽  
Whole Body ◽  
Skeletal Metastases ◽  
Malignant Bone Tumors ◽  
67Ga Scintigraphy ◽  
Primary Bone Tumors ◽  
Primary Bone

Whole-body scintigraphy with both 99mTc-phosphonate and 67Ga was performed on 92 patients suspected of primary bone tumors. In 46 patients with primary malignant bone tumors, scintigraphy with 99mTc-phosphonate disclosed the primary tumor in 44 cases and skeletal metastases in 11, and 67Ga scintigraphy detected the primary tumor in 43 cases, skeletal metastases in 6 cases and soft-tissue metastases in 8 cases. In 25 patients with secondary malignant bone tumors, bone scintigraphy visualized a single lesion in 10 cases and several lesions in 15 cases, and 67Ga scintigraphy detected the primary tumor in 17 cases, skeletal metastases in 17 cases and soft-tissue metastases in 9 cases. In 21 patients with benign bone disease positive uptake of 99mTc-phosphonate was recognized in 19 cases and uptake of 67Ga in 17 cases. It is concluded that bone scintigraphy should be used in patients suspected of primary bone tumors. If malignancy is suspected, 67Ga scintigraphy should be performed in addition.

Magnetic resonance imaging in study of lungs

2019 ◽  
pp. 10-23
Author(s):  
T. A. Akhadov ◽  
S. Yu. Guryakov ◽  
M. V. Ublinsky
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Medical Society ◽  
Resonance Imaging ◽  
Iodinated Contrast ◽  
Long Time ◽  
Women And Children ◽  
Magnetic Resonance Imaging Mri ◽  
A Current ◽  
Lung Mri

For a long time, there was a need to apply magnetic resonance imaging (MRI) technique for lung visualization in clinical practice. The development of this method is stimulated by necessity of the emergence of an alternative to computed tomography, especially when radiation and injection of iodine-containing contrast agents are contraindicated or undesirable, for example, in pregnant women and children, people with intolerance to iodinated contrast. One of the reasons why lung MRI is still rarely used is lack of elaborated standardized protocols that would be adapted to clinical needs of medical society. This publication is a current literature review on the use of MRI in lung studies.

CRYOSURGERY IN THE TREATMENT OF PATIENTS WITH BONE TUMORS

2019 ◽  
Vol 65 (2) ◽  
pp. 165-171
Author(s):  
Aleksey Belyaev ◽  
Georgiy Prokhorov ◽  
Anna Arkhitskaya
Keyword(s):  
Liquid Nitrogen ◽  
Bone Tumors ◽  
Cryogenic Treatment ◽  
Long Term Results ◽  
Bone Lesions ◽  
Giant Cell Tumors ◽  
Primary Bone Tumors ◽  
Circulation Circuit ◽  
Recent Emergence ◽  
Primary Bone

A review of the literature shows that surgical procedures will remain the standard treatment for primary bone tumors. Analysis of studies on the assessment of long-term results shows that additional double cryogenic treatment of the curettage cavity can improve the treatment outcomes of patients with giant cell tumors, dysplastic diseases and some forms of malignant lesions. The traditional execution of the procedure is associated with the open installation of liquid nitrogen in the bone cavity, which requires special skills in handling aggressive refrigerant from the staff and does not exclude complications. In case of multiple metastatic bone lesions, surgical treatment is not indicated. The recent emergence in clinical practice of new equipment with a closed liquid nitrogen circulation circuit inside cryoprobes resumes interest in cryoabla-tion of bone tumor lesions using modern minimally invasive puncture cryotechnology and expanding indications for its use in patients with severe comorbidities.

scholarly journals First-ever intraosseous ancient schwannoma of the proximal ulna successfully treated using the cement technique

2021 ◽  
Vol 49 (2) ◽  
pp. 030006052098773
Author(s):  
Kai Xuan Lim ◽  
Karl Wu
Keyword(s):  
Rare Case ◽  
Pathological Fracture ◽  
Soft Tissue Neoplasm ◽  
Proximal Ulna ◽  
Intraosseous Schwannoma ◽  
First Case ◽  
Primary Bone ◽  
Primary Bone Tumours ◽  
Current Report ◽  
Neural Sheath

Schwannoma or neurilemmoma is a common soft tissue neoplasm arising from the neural sheath of Schwann cells. However, intraosseous schwannoma is rare, accounting for less than 0.2% of primary bone tumours. Several variants of schwannoma have been reported; among them, intraosseous schwannoma with ancient change is extremely rare. This current report presents an extremely rare case of ancient intraosseous neurilemmoma. The patient presented with right elbow pain and disability. A radiolucent, well-defined, lobulated lesion with a thin sclerotic rim in the proximal ulnar metaphysis that had caused a pathological fracture was noted. The mass was surgically excised using marginal resection and bone curettage was undertaken. The bone deficit was grafted with hydroxyapatite and β-tricalcium phosphate and augmented with bone cement. There were no signs of any recurrence after 3 years. This is the first case of an ancient intraosseous schwannoma of the proximal ulna. Although rare, intraosseous schwannoma should be considered in the differential diagnosis of radiographically benign-appearing osseous tumours in the bone. The cement technique is recommended for the treatment of intraosseous schwannoma.

scholarly journals Ligaments of the os trigonum: an anatomical study

2021 ◽  
Author(s):  
Paweł Szaro ◽  
Khaldun Ghali Gataa ◽  
Mateusz Polaczek
Keyword(s):  
Posterior Part ◽  
Anatomical Study ◽  
Control Group ◽  
Flexor Hallucis Longus ◽  
Resonance Imaging ◽  
Os Trigonum ◽  
Posterior Process ◽  
Magnetic Resonance Imaging Mri ◽  
Experimental Group ◽  
Posterior Talofibular Ligament

Abstract Purpose The aim of the study was to examine the ligaments of the os trigonum. Methods The ankle joint magnetic resonance imaging (MRI) of 104 patients with the os trigonum (experimental group) and 104 patients without the os trigonum (control group) were re-reviewed. The connections of the os trigonum and posterior talofibular ligament (PTFL), the fibulotalocalcaneal ligament (FTCL), the paratenon of the Achilles tendon, the posterior talocalcaneal ligament (PTCL), the osteofibrous tunnel of the flexor hallucis longus (OF-FHL) and the flexor retinaculum (FR) were studied. Results The os trigonum is connected to structures. The posterior part of the PTFL inserted on the os trigonum in 85.6% of patients, whereas in all patients in the control group, the posterior part of the PTFL inserted on the posterior talar process (p < 0.05). The connection of the PTCL was seen in 94.2% of patients in the experimental group, while it was seen in 90.4% of patients in the control group (p > 0.05). The connection to the FTCL in the experimental group was 89.4%, while in the control group, it was 91.3% (p > 0.05). The communication with the paratenon was seen more often in the control group compared to that in the experimental group (31.7% vs. 63.8%, p < 0.001). The FTCL was prolonged medially into the FR in 85.6% of patients in the experimental group and in 87.5% of patients in the control group (p > 0.05). The flexor hallucis longus (FHL) run at the level of articulation between the os trigonum 63.5% and the posterior process of the talus 25% and less often on the os trigonum 11.5%. Conclusion The os trigonum is connected with all posterior ankle structures and more connections than previously reported.

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