title: Primary proximal epithelioid sarcoma of the lung successfully treated with pneumonectomy and adjuvant chemotherapy.
abstract: Primary sarcomas of the lung and proximal epithelial sarcomas (PESs) are extremely rare. Inactivation of INI1 has been found in the majority of epithelioid sarcoma (ES). We report the third known case of a primary PES of the lung along with immunohistochemical data. A 41-year-old man with HIV infection, on highly active antiretroviral therapy, presented with haemoptysis, shortness of breath and progressive weight loss for 2 months. He was eventually diagnosed with stage IIA cT2bN0M0 grade-2 primary PES of the lung. This patient underwent pneumonectomy and adjuvant chemotherapy with ifosfamide and doxorubicin. He remains in remission 36 months since diagnosis. Our case stands to help other clinicians as treatment of such rare cases is often reliant on case reports. We also posit a possible pathogenic mechanism given a history of HIV infection in this patient. The association of INI1 mutation with other atypical sarcomas in patients with HIV infection merits further evaluation.
authors.affiliation: Department of Pulmonary and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
authors.forename: Debjit
authors.initials: D
authors.lastname: Saha
authors.affiliation: Department of Experimental Therapeutics, Taussig Cancer Institute-Cleveland Clinic, Cleveland, USA.
authors.forename: Arnab
authors.initials: A
authors.lastname: Basu
authors.affiliation: Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, Texas, USA.
authors.forename: Abhishek
authors.initials: A
authors.lastname: Maiti
authors.affiliation: Department of Hematology and Oncology, Mount Sinai Medical Center, Miami Beach, Florida, USA.
authors.forename: Estelamari
authors.initials: E
authors.lastname: Rodriguez
mesh_terms: D000328:Adult; D017024:Chemotherapy, Adjuvant; D004317:Doxorubicin / Q000008:administration & dosage; D015658:HIV Infections / Q000150:complications; D006469:Hemoptysis / Q000209:etiology; D006801:Humans; D007069:Ifosfamide / Q000008:administration & dosage; D008175:Lung Neoplasms / Q000188:drug therapy / Q000473:pathology* / Q000601:surgery; D008297:Male; D011013:Pneumonectomy / Q000379:methods*; D012509:Sarcoma / Q000188:drug therapy / Q000473:pathology* / Q000601:surgery; D013906:Thoracoscopy
chemical_list: D004317:Doxorubicin; D007069:Ifosfamide