Intraosseous schwannoma of the humerus: a rarity yet warrants consideration

2021 ◽  
Vol 14 (9) ◽  
pp. e240007
Author(s):  
Jagannath Kamath ◽  
Harshit Bhaskar Shetty ◽  
Arkesh Madegowda ◽  
Anusha S Bhatt
Keyword(s):  
Pathological Fracture ◽  
Histopathological Examination ◽  
Osteolytic Lesion ◽  
Complete Excision ◽  
Intraosseous Schwannoma ◽  
Distal Shaft ◽  
Primary Bone ◽  
Primary Bone Tumours ◽  
Graft Reconstruction ◽  
Left Humerus

Intraosseous schwannoma is extremely rare that it is not often considered among differential diagnosis for an osteolytic lesion, especially in long bones of the extremities. Amounting to less than 0.2% of all primary bone tumours and less than 200 cases reported so far, with only 3 cases involving the humerus, we hereby report the fourth case. In addition to its rarity, this was the only case of an intraosseous schwannoma involving the humerus bone which presented with a pathological fracture in a 45-year-old woman after sustaining a trivial trauma. Radiological examination revealed a geographic type of osteolytic lesion in distal shaft region of the left humerus. Only a histopathological examination helped in revealing and confirming the diagnosis of an intraosseous schwannoma. Treatment of the tumour with complete excision with bone graft reconstruction and osteosynthesis yields good results with very low risk of recurrence.

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 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.

Porous tantalum acetabular cups for reconstructions after peri-acetabular resections of primary bone tumours

2021 ◽  
pp. 112070002110015
Author(s):  
Riccardo Zucchini ◽  
Andrea Sambri ◽  
Claudio Giannini ◽  
Michele Fiore ◽  
Carlotta Calamelli ◽  
...  
Keyword(s):  
Bone Tumour ◽  
Hip Dislocation ◽  
Functional Results ◽  
Bone Tumours ◽  
Harris Hip Score ◽  
Porous Tantalum ◽  
Term Survival ◽  
Primary Bone ◽  
Primary Bone Tumours

Introduction: Periacetabular reconstruction after resection of primary bone tumour is a very demanding procedure. They are frequently associated with scarce functional results and a high rate of complications. We report a series of patients with periacetabular resections for primary bone tumours and reconstruction with a porous tantalum (PT) acetabular cup (AC). Materials and methods: 27 patients (median age 30 years) were included, being affected by primary bone tumours of the pelvis and treated with peri-acetabular resection and reconstruction with a PT AC. The diagnoses were 13 osteosarcomas, 7 chondrosarcomas and 7 Ewing sarcomas. Function was assessed with the Harris Hip Score and complications were classified according to Zeifang. Results: The median follow-up was 70 months. 1 patient required removal of the PT AC because of implant associated infection 55 months after surgery. There was 1 hip dislocation and no case of aseptic loosening. At final follow-up, the median HHS was 81 points (range 48–92). Conclusions: The used PT AC had good medium-term survival rates and good functional results. This technique is a viable reconstructive option after resections of periacetabular primary bone sarcomas.

Primary Bone Tumours of the Pelvis in Childhood—Ewing's Sarcoma of the Ilium, Pubis and Ischium. (Report of 30 cases) (Part I)

1989 ◽  
Vol 33 (4) ◽  
pp. 354-360 ◽  
Author(s):  
K. KOZLOWSKI ◽  
J. CAMPBELL ◽  
G. BELUFFI ◽  
J.C. HOEFFEL ◽  
L. MORRIS ◽  
...  
Keyword(s):  
Ewing’S Sarcoma ◽  
Ewing's Sarcoma ◽  
Bone Tumours ◽  
Primary Bone ◽  
Primary Bone Tumours

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.

Endoprosthetic reconstruction of the distal tibia and ankle joint after resection of primary bone tumours

2009 ◽  
Vol 91-B (10) ◽  
pp. 1378-1382 ◽  
Author(s):  
A. S. Shekkeris ◽  
S. A. Hanna ◽  
M. D. Sewell ◽  
B. G. I. Spiegelberg ◽  
W. J. S. Aston ◽  
...  
Keyword(s):  
Ankle Joint ◽  
Distal Tibia ◽  
Bone Tumours ◽  
Endoprosthetic Reconstruction ◽  
Primary Bone ◽  
Primary Bone Tumours

Hemiarthroplasty proximal femoral endoprostheses following tumour reconstruction

2018 ◽  
Vol 100-B (1) ◽  
pp. 101-108 ◽  
Author(s):  
J. D. Stevenson ◽  
V. S. Kumar ◽  
G. L. Cribb ◽  
P. Cool
Keyword(s):  
Revision Surgery ◽  
Pathological Fracture ◽  
Bone Erosion ◽  
Bone Tumour ◽  
Early Migration ◽  
Medial Migration ◽  
Primary Bone ◽  
Grade 3 ◽  
One Year

AimsDislocation rates are reportedly lower in patients requiring proximal femoral hemiarthroplasty than for patients undergoing hip arthroplasty for neoplasia. Without acetabular replacement, pain due to acetabular wear necessitating revision surgery has been described. We aimed to determine whether wear of the native acetabulum following hemiarthroplasty necessitates revision surgery with secondary replacement of the acetabulum after proximal femoral replacement (PFR) for tumour reconstruction.Patients and MethodsWe reviewed 100 consecutive PFRs performed between January 2003 and January 2013 without acetabular resurfacing. The procedure was undertaken in 74 patients with metastases, for a primary bone tumour in 20 and for myeloma in six. There were 48 male and 52 female patients, with a mean age of 61.4 years (19 to 85) and median follow-up of two years (interquartile range (IQR) 0.5 to 3.7 years). In total, 52 patients presented with a pathological fracture and six presented with failed fixation of a previously instrumented pathological fracture.ResultsAll patients underwent reconstruction with either a unipolar (n = 64) or bipolar (n = 36) articulation. There were no dislocations and no acetabular resurfacings. Articular wear was graded using the criteria of Baker et al from 0 to 3, where by 0 is normal; grade 1 represents a narrowing of articular cartilage and no bone erosion; grade 2 represents acetabular bone erosion and early migration; and grade 3 represents protrusio acetabuli. Of the 49 patients with radiological follow-up greater than one year, six demonstrated grade 1 acetabular wear and two demonstrated grade 2 acetabular wear. The remainder demonstrated no radiographic evidence of wear. Median medial migration was 0.3 mm (IQR -0.2 to 0.7) and superior migration was 0.3 mm (IQR -0.2 to 0.6). No relationship between unipolar versus bipolar articulations and wear was evident.ConclusionHemiarthroplasty PFRs for tumour reconstruction eliminate joint instability and, in the short to medium term, do not lead to native acetabular wear necessitating later acetabular resurfacing. Cite this article: Bone Joint J 2018;100B:101–8.

Synovial Sarcoma of the Cervical Spine: Case Report

2021 ◽  
Author(s):  
Nuno Oliveira ◽  
Sofia Carvalho ◽  
Paulo Cunha ◽  
Joni Nunes ◽  
Pedro Varanda ◽  
...  
Keyword(s):  
Case Report ◽  
Cervical Spine ◽  
Soft Tissue ◽  
Synovial Sarcoma ◽  
Therapeutic Strategy ◽  
Osteolytic Lesion ◽  
Neurological Deficits ◽  
Soft Tissue Tumour ◽  
Tissue Tumour ◽  
Primary Bone

Abstract PurposeTo describe a very rare case of Synovial Sarcoma affecting cervical spine vertebra.SS is a rare malignant and aggressive soft tissue tumour arising from mesenchymal cells. Primary bone origin SS is a much rarer entity that affects more commonly long bones. Ideal therapeutic strategy is yet to be defined due to very small number of cases reported so far.Case reportA 55-year-old male, construction worker, with no other relevant medical history presented with a progressive tetraparesis after recurring several times during a 4-week period to assistant physician and emergency department complaining about bilateral shoulder pain. Image studies revealed an osteolytic lesion centred on C4 vertebra with intracanalar and intraforaminal extension, causing neurologic compression. Patient was submitted to urgent surgical decompression intervention. C3 and C4 corpectomy and excisional biopsy followed by stabilization with C2-C5 arthrodesis.OutcomesNeurological deficits did not improve after surgery. Histopathological and immunohistochemical analysis revealed phenotypical characteristics of a biphasic Synovial Sarcoma. Patient died 4 weeks after surgery due to a respiratory tract infection.DiscussionSS is a malignant rare and aggressive soft tissue tumour that usually affects young adults. Very few cases of primary bone SS affecting the spine are described in literature. Imaging studies may suggest the diagnosis of synovial sarcoma but definitive diagnosis can only be confirmed by histological and immunohistochemical analysis.The rarity of these lesions demands high clinical suspicion for the diagnosis and due to the low number of cases reported ideal therapeutic strategy is yet to be defined.

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