title: [Video-assisted thoracic surgery diagnosis of mucinous (colloid) lung adenocarcinoma: Case report].
abstract: BACKGROUND
  Mucinous colloid lung adenocarcinoma is an uncommon variant of lung carcinomas with similar features to tumours seen in the gastrointestinal tract. To distinguish between these tumours and other mucinous lung tumours, such as mucinous bronchioloalveolar cell carcinomas and metastatic mucinous lesions could be difficult with small biopsy specimens from fine needle aspiration.
  
  
  METHODS
  The case is described of a 49-year-old female with history of dyspnoea and cough with bloody sputum and weight lose. Thorax axial computed tomography demonstrated a right lower lobe spiculated mass with calcifications. Transthoracic computed tomography- guided fine needle biopsy reported negative results, and the biopsy obtained with video-assisted thoracic surgery was useful for an adequate cytology report of a colloid variant of mucinous lung adenocarcinoma.
  
  
  CONCLUSIONS
  Video-assisted thoracic surgery is an appropriate option for obtaining a larger specimen in those cases where small biopsies are inconclusive for the diagnosis of thoracic pathologies such as malignant tumours.
authors.affiliation: Departamento de Cirugía, Hospital Central «Dr. Ignacio Morones Prieto», San Luis Potosí, México. Electronic address: esmer_david@hotmail.com.
authors.forename: David
authors.initials: D
authors.lastname: Esmer-Sánchez
authors.affiliation: Neumología, Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México.
authors.forename: Carlos Adrián
authors.initials: CA
authors.lastname: Jiménez-González
authors.affiliation: Departamento de Patología, Hospital Central «Dr. Ignacio Morones Prieto», San Luis Potosí, México.
authors.forename: Cuauhtémoc
authors.initials: C
authors.lastname: Oros-Ovalle
authors.affiliation: Departamento de Epidemiología y Salud Pública, Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México.
authors.forename: Jesús Emmanuel
authors.initials: JE
authors.lastname: Arriaga-Caballero
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology / Q000601:surgery; D000970:Antineoplastic Agents / Q000627:therapeutic use; D001706:Biopsy / Q000379:methods*; D044963:Biopsy, Fine-Needle; D002114:Calcinosis / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D005188:False Negative Reactions; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D020775:Thoracic Surgery, Video-Assisted; D014057:Tomography, X-Ray Computed
chemical_list: D000970:Antineoplastic Agents
keywords: Adenocarcinoma; Adenocarcinoma mucinoso; Carcinoma coloide; Cirugía torácica asistida por video; Colloid carcinoma; Lung; Mucinous adenocarcinoma; Pulmón; Video-assisted thoracic surgery