title: A case of phosphaturic mesenchymal tumor.
abstract: Phosphaturic mesenchymal tumors (PMTs) are rare and found to be commonly associated with phosphaturia and oncogenic osteomalacia. They commonly affect middle-aged adults and are located mostly in the extremities. Most of them are benign with only a few metastatic cases described in the literature. PMT-mixed connective tissue (PMTMCT) type is the most common PMT. Though most cases of PMTMCT have been associated with oncogenic osteomalacia and phosphaturia, there have been many reports of nonphosphaturic variants of this tumor with no clinical or laboratory evidence of tumor-induced osteomalacia. However, most of these nonphosphaturic variants previously described were not metastatic. We describe an unusual case of PMTMCT with widespread osseous metastases and without evidence of tumor-induced osteomalacia or phosphaturia.
authors.affiliation: 1Department of Internal Medicine, New York Medical College, Metropolitan Hospital Center, New York; 2Division of Hematology and Oncology, New York Medical College, Westchester Medical Center, New York; and 3Department of Hematology and Oncology, New York Medical College, Metropolitan Hospital Center, New York.
authors.forename: Ranjita
authors.initials: R
authors.lastname: Pallavi
authors.forename: Pavan Mahendra
authors.initials: PM
authors.lastname: Ravella
authors.forename: Priyanka
authors.initials: P
authors.lastname: Gupta
authors.forename: Andrea
authors.initials: A
authors.lastname: Popescu
mesh_terms: D001859:Bone Neoplasms / Q000473:pathology* / Q000556:secondary; D006801:Humans; D007015:Hypophosphatemia, Familial / Q000473:pathology*; D008297:Male; D008637:Mesenchymoma / Q000473:pathology*; D008875:Middle Aged