Phosphaturic mesenchymal tumor, mixed connective tissue variant, of the mandible: report of a case and review of the literature

Victoria L. Woo, Regina Landesberg, Erik A. Imel, Steven R. Singer, Andrew L. Folpe, Michael J. Econs, Taeyun Kim, Lara R. Harik, Thomas P. Jacobs

Research output: Contribution to journalArticle

36 Scopus citations


Tumor-induced osteomalacia (TIO) is a rare paraneoplastic syndrome that results in renal phosphate wasting with hypophosphatemia. In most cases, the underlying cause of TIO is a small mesenchymal neoplasm that is often difficult to detect, resulting in delayed diagnosis. One such neoplasm is the phosphaturic mesenchymal tumor, mixed connective tissue variant (PMTMCT), an unusual entity with unique morphologic and biochemical features. Most of these tumors are found at appendicular sites with only rare cases reported in the jaws. We describe a PMTMCT involving the mandible in a patient with a protracted history of osteomalacia. A review of the current literature is provided with emphasis on the clinical and histologic features, etiopathogenesis, and management of PMTMCT in the setting of TIO.

Original languageEnglish (US)
Pages (from-to)925-932
Number of pages8
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
Issue number6
StatePublished - Dec 1 2009


ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology
  • Dentistry(all)

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