title: Nodular skin metastasis mimicking infection in a revision total hip arthroplasty scar.
abstract: We present the case of a 60-year-old man who had metastasis of a nodular squamous cell carcinoma from a laryngeal carcinoma that mimicked an infected sinus in a 4-month postoperative revision total hip arthroplasty scar. A diagnosis was made at the time of frozen section. The patient died 3 months after tumor resection as a result of multiorgan failure. Nodular squamous cell carcinoma metastasis in a total hip arthroplasty scar is extremely uncommon. However, this association must be considered in a patient with a known tumor after revision surgery. In such patients, we recommend obtaining an intraoperative frozen section to avoid misdiagnosis in cases of infected sinuses associated with implants.
authors.affiliation: The Hip Surgery Unit, Institute of Orthopaedics Carlos E Ottolenghi, Italian Hospital in Buenos Aires, Buenos Aires, Argentina. martin.buttaro@hospitalitaliano.org.ar
authors.forename: Martin A
authors.initials: MA
authors.lastname: Buttaro
authors.forename: Agustin J
authors.initials: AJ
authors.lastname: Guala
authors.forename: Vincent
authors.initials: V
authors.lastname: Vigorita
authors.forename: Francisco
authors.initials: F
authors.lastname: Piccaluga
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000556:secondary; D002921:Cicatrix / Q000209:etiology / Q000473:pathology*; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D005271:Femur Head Necrosis / Q000601:surgery*; D005629:Frozen Sections; D006801:Humans; D007822:Laryngeal Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D016459:Prosthesis-Related Infections / Q000175:diagnosis*; D012086:Reoperation; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000556:secondary