title: Fibro-Osseous Pseudotumor of the Hand.
abstract: Fibro-osseous pseudotumor of digits (FOPD) is an uncommon histological diagnosis. Clinical and imaging findings may resemble high-grade sarcoma or infection. We describe a patient with progressive pain and swelling at the dorsal surface of the first web space. MRI and CT imaging revealed an intramuscular heterogenous soft tissue mass defined by a mineralized peripheral ring. Core needle biopsy diagnosed FOPD. Eight months later a matured ossified nodule that was quite smaller than the initial soft tissue mass was excised. The patient is symptom free without local recurrence at 1 year follow up. Soft tissue masses of the hand pose a challenging diagnostic and therapeutic issue. An in depth interpretation of clinical, imaging and histology findings is important to avoid erroneous diagnosis and treatment.
authors.affiliation: 1 Department of Orthopaedic Surgery, ATTIKON University General Hospital of Athens, National and Kapodistrian University of Athens, Greece.
authors.forename: Vasileios A
authors.initials: VA
authors.lastname: Kontogeorgakos
authors.affiliation: 2 Department of Anatomy-Histology-Embryology, University of Patras School of Medicine, University Campus, Building of Preclinical Studies, Rion-Patras, Greece.
authors.forename: Dionysios J
authors.initials: DJ
authors.lastname: Papachristou
authors.affiliation: 3 Department of Orthopaedic Surgery, School of Health Sciences, University Hospital of Thessalia, Larissa, Greece.
authors.forename: Sokratis
authors.initials: S
authors.lastname: Varitimidis
mesh_terms: D000328:Adult; D062005:Biopsy, Large-Core Needle; D001859:Bone Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D018214:Fibroma, Ossifying / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D050279:Metacarpal Bones
keywords: Fibro-osseous pseudotumor of digits; Infection; Myositis ossificans; Soft tissue sarcoma