Osteochondroma: Review of 431 patients from one medical institution in South China.

Background: The geographic distribution of osteochondroma (OC) varies greatly around the world. There has been no recent report on OC in a large Chinese population. The aim of this study was to characterize OC by an epidemiological analysis of the clinical data from one medical institution in South China.

Diagnostic imaging of deep vein thrombosis secondary to osteochondroma formation.

Deep vein thrombosis (DVT) is a condition classically associated with blood stasis, hypercoagulability or injury to the vasculature. As blood stasis is usually associated with patient immobility, DVT occurrence in young active patients with no underlying haematological conditions is a rarity. An exostosis, also known as osteochondroma, is a cartilage capped lesion.

Spontaneous shrinkage of solitary osteochondromas.

Objective: Osteochondromas are the most common benign bone tumors, and thus far, their spontaneous shrinkage is considered a rare phenomenon. This study was designed to investigate the exact ratio of remission to progressive or stable cases and analyze the mechanism of tumor regression on the basis of existing theories.

Materials And Methods: We retrospectively collected images of solitary osteochondromas in patients from 1992 to 2013, excluding cases involving short-term follow-up periods and follow-up periods that ended before growth plate closure.

Excision of Solitary Osteochondroma on the Ventral Aspect of Left Scapula Presenting as Pseudowinging in a 4-year-old Boy: A Rare Case Report.

Introduction: Osteochondroma is a benign bony lesion with cartilaginous cap occurring usually in long bones, but flat bones may also be involved, either isolated or as a part of a syndrome. Usually, they are asymptomatic, but appearance of symptoms such as mass effect may warrant surgical intervention, which is usually delayed till skeletal maturity.

Case Report: A 4-year-old male child presented with swelling on ventral aspect of inferior angle of scapula associated with pain, pseudowinging of scapula, and snapping sound of the left shoulder on movement.

Cervical osteochondroma with neurological symptoms: literature review and a case report.

Introduction: Osteochondromas are common benign tumors of bone and spinal involvement is uncommon. Solitary spinal osteochondromas may produce a wide variety of symptoms depending on their location and relationship to adjacent neural structures.

Case Presentation: Herein, we present a case of solitary osteochondroma arising from the posterior arch of C1, causing left-sided ascending numbness and paresthesia and difficulty walking.

Solitary Osteochondroma of the Tibial Tuberosity Mimicking Osgood-Schlatter Lesion: A Rare Cause of Anterior Knee Pain in Adolescents: A Case Report.

Osteochondroma arising from the tibial tuberosity is very rare. We report such a case which mimicked OsgoodSchlatter's disease in an adolescent. A 12 years-old boy presented with swelling over his right proximal tibia of one year duration associated with pain in the last three months.

Solitary osteochondroma of the proximal femur causing sciatic nerve compression.

Unlabelled: Osteochondromas (OC) are the most common benign tumors of the bones. They are most frequently found near the knee joint and are typically asymptomatic. The presence of OC near the hip joint is rare.

A solitary osteochondroma of the cervical spine: a case report and review of literature.

Introduction: Osteochondromas are usually found in the extremities and are rarely seen in the spine. They are most commonly found in the posterior elements of the spine, and intraspinal extension is uncommon. Compressive myelopathy as a presentation of vertebral osteochondroma in a child is a rare entity.

Multiple osteochondromas of the antlers and cranium in a free-ranging white-tailed deer (Odocoileus virginianus).

This paper reports a case of multiple osteochondromas affecting the antlers and the left zygomatic bone of a free-ranging adult white-tailed buck (Odocoileus virginianus) from Georgia, USA. Along with a few postcranial bones, the antlered cranium of the individual was found in a severely weathered condition and devoid of any soft tissue. The antlers exhibited five pedunculated exostoses that were composed of cancellous bone and, in their peripheral portions, also mineralized cartilage.

Osteochondroma mimicking meningioma: case report and literature update.

We report a case of an osteochondroma in a 47-year-old woman presenting with a 2-month history of thoracic back pain that radiated down her left arm. Based on imaging features, the osteochondroma was initially thought to represent a calcified meningioma. The unusual features of the case include the location of the tumor, patient age, the erosion of the vertebra, and the confusing neuroradiological features.

Solitary osteochondroma of the sinus tarsi.

Tumors are a rare cause of ankle-region pain. Osteochondroma is one of the most common benign bone tumors, but is rarely localized to the foot bones. Here, we describe a case of a solitary osteochondroma of the sinus tarsi presenting in an 8-year-old boy with a history of recurrent ankle sprains and limited range-of-motion of the subtalar joint.

Synovial chondroma in Hoffa's fat pad: Case report and literature review of a rare disorder.

Introduction: Synovial chrondomatosis is a rare disorder characterised by the development of hyaline cartilage from the synovial membrane. Large isolated lesions in the Hoffa's fat pad are an uncommon entity.

Presentation Of Case: A 33 year old gentleman presented complaining of progressive knee pain associated with an enlarging lesion on the anterior aspect of the right knee, with associated locking and giving way.

SOLITARY OSTEOCHONDROMA OF THE DISTAL THIRD METACARPAL BONE IN A TWO-YEAR-OLD WHITE RHINOCEROS (CERATOTHERIUM SIMUM).

A privately owned, 2-yr-old, 600-kg, intact male white rhinoceros presented with a progressive lameness of the left front limb of 8-mo duration with a focal swelling situated over the dorsoproximal aspect of third metacarpophalangeal joint. Radiographs of the affected limb showed a 28 mm × 26 mm exostosis at the dorsodistal third metacarpal bone. Surgical removal of the exostosis was performed and histopathologic examination confirmed a solitary osteochondroma.

A giant multi-lobed osteochondroma of the phalanx in an adult: A case report.

Introduction: Solitary osteochondromas of the adult hand are extremely rare. We present a case of a giant multi-lobed osteochondroma of the phalanx in an adult. No similar cases were found in the literature.

Surgical management of myelopathy caused by a solitary spinal osteochondroma in a young cat.

Case Summary: A 10-month-old, male castrated, domestic shorthair cat was presented with fast-progressing ataxia of the pelvic limbs. MRI and CT were performed, revealing a bony proliferation at T11, with mass effect and laterodorsal compression of the spinal cord. After hemilaminectomy and the removal of the bony mass, the cat recovered uneventfully.

Solitary osteochondroma arising in lumbar spinous process: Case report.

Solitary osteochondromas rarely occur in the axial skeleton. Those tumors mostly arise on the posterior elements of the cervical column causing various symptoms especially when developing within the spinal canal. Exophytic lumbar variety is uncommon presenting with palpable mass or spinal deformity.

Arthroscopic Excision of a Solitary Acetabular Osteochondroma in an Adult: A Case Report.

Case: A 43-year-old woman presented with localized pain of the right hip 2 months after a trivial trauma. Physical examination revealed a positive Patrick (FABER [Flexion, Abduction, and External Rotation]) test. Radiographs showed a radiopaque lesion at the acetabular fossa, and magnetic resonance imaging revealed a mass with adjacent bone marrow edema.

Detection of exostosin glycosyltransferase gene mutations in patients with non-hereditary osteochondromas of the mandibular condyle.

Exostosin glycosyltransferase (EXT) 1 and EXT2 have been identified as causative genes in osteochondroma; however, it is not known whether these genes are also involved in condylar osteochondromas. The aim of this study was to identify EXT1 and EXT2 mutations in patients with non-hereditary osteochondromas of the mandibular condyle. DNA was obtained from resected tissues (cartilage cap) of 12 patients with solitary condylar osteochondromas.

Management of nerve compression in multiple hereditary exostoses: a report of two cases and review of the literature.

Purpose: Multiple hereditary exostoses (MHE) is a rare autosomal dominant condition that results in the growth of cartilage-capped prominences that often cause nerve compression and injury. Many patients suffer from continued and debilitating chronic pain which leads some to advocate avoiding surgical intervention in patients with multiple hereditary exostoses. We present a review of the literature as well as a case series at our institution in order to evaluate the role of surgery in multiple hereditary exostoses.

Trauma-Induced Resolution of Solitary Osteochondroma of the Distal Femur.

Osteochondromas are benign lesions manifested as bony protrusions capped by cartilage. The exact cause of these growths is not known, and there is no treatment other than surgical excision if the lesion becomes symptomatic. Spontaneous resolution is an uncommon phenomenon that is not completely understood.

[Popliteal artery pseudoaneurysm caused by femur exostosis: A pediatric case].

Exostoses, or osteochondromas are benign bone tumors that have developed on the bone surface. These benign tumors can be asymptomatic or lead to complications, for instance arterial pseudoaneurysm. We report a case of a pseudoaneurysm of the popliteal artery treated surgically in a 17-year-old girl with a solitary exostosis of the right femur.

Imaging of benign complications of exostoses of the shoulder, pelvic girdles and appendicular skeleton.

Exostoses are the most common benign bone tumors, accounting for 10 to 15% of all bone tumors. They develop at the bone surface by enchondral ossification and stop growing when skeletal maturity has been reached. At first, exostoses are covered by a smooth cartilage cap that progressively ossifies with skeleton maturity.

Differential diagnosis of BPOP arising in relation to patella.

Introduction: Solitary exostosis is common at the metaphysis of long bones, and rarely may it develop in the lower pole of the patella. Usually it stops growing after skeletal maturity unless complicated. When the growth continues after skeletal maturity, other rare possibilities need to be considered such as bizarre parosteal osteochondromatous proliferation (BPOP).

Large solitary osteochondroma of the thoracic spine: Case report and review of the literature.

Background: Spinal osteochondromas are typically benign tumors, but patients may present with myelopathy and neurologic deficits if there is tumor encroachment within the spinal canal.

Case Description: We report here a case of a large solitary osteochondroma originating from the posterior vertebral body of T9 causing spinal cord compression and myelopathy. A 17-year-old man presented with 3 months of bilateral feet numbness and gait difficulty.