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Hasegawa S, Kanda S, Imada H, Yamaguchi T, Akiyama T. Melorheostosis with recurrent soft-tissue components: a histologically confirmed case. Skeletal Radiol 2017; 46:399-404. [PMID: 28062900 DOI: 10.1007/s00256-016-2562-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/15/2016] [Accepted: 12/19/2016] [Indexed: 02/02/2023]
Abstract
Melorheostosis is a very rare disorder characterized by irregular cortical thickening seen on radiographs. In this paper, we present a case of melorheostosis with microscopically confirmed soft-tissue components. The patient was a 51-year-old man who complained of severe pain in the lateral aspect of his right knee. The excision of an ossified soft-tissue lesion relieved intractable pain that had lasted 20 years. Microscopically, the cortex of the affected fibula was composed of thick compact bone and the soft-tissue component consisted of dense compact bone without endochondral ossification. The presence of soft-tissue osseous nodules around the joints is one of the specific conditions for melorheostosis and should be differentiated from synovial chondromatosis. The ossified soft-tissue lesion in our patient is to our knowledge the first reported case of the histologically confirmed soft-tissue component of melorheostosis, which differs from that of synovial chondromatosis.
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Affiliation(s)
- Shoichi Hasegawa
- Department of Orthopaedic Surgery, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma, Omiya-ku, Saitama, 330-8503, Saitama, Japan
| | - Shotaro Kanda
- Department of Orthopaedic Surgery, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma, Omiya-ku, Saitama, 330-8503, Saitama, Japan
| | - Hiroki Imada
- Department of Pathology, Dokkyo Medical University Koshigaya Hospital, No. 1-50, 2-Chome, Minami-Koshigaya, Koshigaya-shi, Saitama, 343-8555, Japan
| | - Takehiko Yamaguchi
- Department of Pathology, Dokkyo Medical University Koshigaya Hospital, No. 1-50, 2-Chome, Minami-Koshigaya, Koshigaya-shi, Saitama, 343-8555, Japan
| | - Toru Akiyama
- Department of Orthopaedic Surgery, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma, Omiya-ku, Saitama, 330-8503, Saitama, Japan.
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