Extraskeletal osteochondroma in the nape of the neck: a case report

J Orthop Surg (Hong Kong). 2006 Aug;14(2):192-5. doi: 10.1177/230949900601400217.

Abstract

Extraskeletal osteochondroma in the nape of the neck is rare and its pathological diagnosis is based on radiological and histopathological examination. It is vital that such a diagnosis be considered when a discrete, ossified mass is localised in soft tissues, even at atypical sites. Differential diagnoses include myositis ossificans, a lipomatous lesion, a pseudomalignant osseous tumour, an ossifying fibromyxoid tumour, an extraskeletal chondroma with endochondral ossification, synovial (osteo) chondromatosis, tumoural calcinosis, a synovial sarcoma, and an extraskeletal osteosarcoma. Clinical awareness of this benign entity is important as no malignant transformation or metastasis has been reported. Marginal excision with histopathological identification is the treatment of choice.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Diagnosis, Differential
  • Head and Neck Neoplasms / diagnosis*
  • Head and Neck Neoplasms / diagnostic imaging
  • Head and Neck Neoplasms / pathology
  • Head and Neck Neoplasms / surgery
  • Humans
  • Male
  • Osteochondroma / diagnosis*
  • Osteochondroma / diagnostic imaging
  • Osteochondroma / pathology
  • Osteochondroma / surgery
  • Soft Tissue Neoplasms / diagnosis*
  • Soft Tissue Neoplasms / diagnostic imaging
  • Soft Tissue Neoplasms / pathology
  • Soft Tissue Neoplasms / surgery
  • Tomography, X-Ray Computed