title: [Pulmonary actinomycosis simulating Tobias-Pancoast tumor].
abstract: Actinomycosis is a rare infection that may involve several organs. Thoracic involvement is uncommon (10-20%). This article describes the case of a 33 year-old patient, HIV negative, complaining of burning pain in the left posterior chest radiating to the left upper arm and reduced strength and paresthesias. The CT scan showed a mass in close contact with the chest wall. Following a thoracotomy, observation verified a solid pulmonary lesion adhered to the left upper lobe, infiltrating the posterior thoracic wall and apex of the cavity with rich vascularization. An incisional biopsy of the lesion and microbiological study revealed actinomycosis.
authors.affiliation: Faculdade Integral Diferencial, Teresina, PI.
authors.forename: Amanda Nogueira Barbosa Dantas
authors.initials: AN
authors.lastname: Teixeira
authors.forename: Carmen Laís Gervásio Fônseca
authors.initials: CL
authors.lastname: Alves
authors.forename: Erbert Portela
authors.initials: EP
authors.lastname: Martins Filho
authors.forename: Evandro Magno Firmeza
authors.initials: EM
authors.lastname: Mendes
authors.forename: Jefferson Torres
authors.initials: JT
authors.lastname: Nunes
mesh_terms: D000196:Actinomycosis / Q000175:diagnosis*; D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008172:Lung Diseases, Fungal / Q000175:diagnosis*; D008297:Male; D010178:Pancoast Syndrome / Q000175:diagnosis*; D035441:Thoracic Wall / Q000382:microbiology; D014057:Tomography, X-Ray Computed