Extraskeletal Osteochondroma of the Great Toe in a Teenager

Hunter, Allison M.; Farnell, Chason; Doyle, J. Scott

doi:10.1053/j.jfas.2018.11.028

Cited by 4 publications

(5 citation statements)

References 18 publications

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“…The masses are easily distinguished by the presence of trabecular structures within them. [ 3 , 5 , 11 , 12 ]…”

Section: Discussionmentioning

confidence: 99%

“…The masses are easily distinguished by the presence of trabecular structures within them. [3,5,11,12] The diagnosis of extraosseous osteochondroma is difficult based on the patient's clinical presentation and imaging examination, and a definitive diagnosis is largely dependent on the pathological histology. Clinicians should fully consider the relevant circumstances and focus on differentiation when encountering similar cases.…”

Section: Discussionmentioning

confidence: 99%

“…[2,9] Myositis ossificans is usually heterogeneous or amorphous in its early stages and can increase or decrease in size within a few weeks, typically presenting as a "banding phenomenon" of peripheral calcification consistent with muscle alignment and without the presence of a clear cartilage zone around the osteoclastic area. [3,[10][11][12] Periosteal chondroma is found on the surface of long bones and can cause cortical erosion. It may also be confused with extraosseous osteochondroma on imaging.…”

Section: Discussionmentioning

confidence: 99%

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Extraosseous osteochondroma of superficial fascia layer of the heel: A case report and review of literature

et al. 2022

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Rationale: Osteochondroma is a common benign bone tumor consisting of cartilage-covered bone confluent with the medullary canal of the epiphysis. Extraosseous osteochondroma shares the same appearance and histologic features as a typical osteochondroma but does not have any attachment to surrounding bone structures. Because of its low incidence, extraosseous osteochondroma is uncommon in clinical workups and thus prone to misdiagnosis. The diagnosis of extraosseous osteochondroma should be considered when there is a well-defined bony mass in the soft tissue with no direct continuity with the adjacent bone or joint. Here, we present a case of an imaging diagnosis of “calcified bursitis in the subcutaneous superficial fascial layer” and a postoperative pathological diagnosis of “extraosseous osteochondroma.” Patient concerns: The patient was a 61-year-old man who had a right plantar heel mass for 2 years and recently visited the hospital because of discomfort in shoes. Diagnoses: The patient was diagnosed with pathological examination. Interventions: After completing the relevant preoperative examination and preoperative preparation and excluding contraindications to surgery, surgery was performed under nerve block anesthesia. Outcomes: We performed surgical resection, and the patient did not have obvious discomfort when discharged from the hospital. Auxiliary examination showed no abnormalities. Lessons: For foot tumors, we need to consider the possibility of extraosseous osteochondroma. After completing the auxiliary examination, we should determine the relationship between the tumor and its surrounding tissues and blood supply before surgery to avoid causing major trauma.

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“…The masses are easily distinguished by the presence of trabecular structures within them. [ 3 , 5 , 11 , 12 ]…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Extraosseous osteochondroma of superficial fascia layer of the heel: A case report and review of literature

et al. 2022

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“…tissue chondroma develops in soft tissue. Periosteal chondroma occurs from the surface of the cortex beneath the periosteum [1]. A tumor of cartilaginous origin with myxoid and fibrous components is called chondromyxoid fibroma [2].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Periosteal chondroma occurs from the surface of the cortex beneath the periosteum. 1 A tumor of cartilaginous origin with myxoid and fibrous components is called chondromyxoid fibroma. 2 Our two cases describe cartilaginous tumors with similar clinical manifestations and exhibited histologically distinctive characteristics in the diagnostic process.…”

Section: Introductionmentioning

confidence: 99%

Subungual Osteochondromas of the Toe: Two Case Reports for Diagnosis and Treatment

et al. 2022

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Benign cartilaginous tumors, known as chondrogenic tumors, show cartilage components in the microscopic diagnosis. We present two clinical cases with cartilaginous tumors of the toes showing distinctive clinical manifestations. Two juvenile patients visited our outpatient clinic due to tumors with toenail deformities. A 10-year-old girl presented with a palpable mass with a nail deformity on the left third toe. The initial pathology report was soft tissue chondroma until complete resection. Another 15-year-old male patient visited the dermatology department with a toenail deformity and underwent a punch biopsy. The pathology report was fibrosis with myxoid degeneration. Excisional biopsies were performed for both patients. In the operative field, we observed exophytic tumors connected to the distal phalangeal bones. The final pathology reports were subungual osteochondroma on both patients. The specimen exhibited mature bone trabeculae with a focal cartilaginous cap. Benign cartilaginous tumors have a slow, progressive course and do not show significant symptoms. However, tumors in subungual areas are accompanied by toenail deformities and they can cause pain. Their clinical characteristics lead to a delayed diagnosis. Surgeons can be confused between soft tissue and chondrogenic tumors. When they conduct physical examinations, these categories should be considered in the differential diagnosis.

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