Air-trapping zone surrounding sclerosing hemangioma of the lung

J Comput Assist Tomogr. 2002 May-Jun;26(3):358-61. doi: 10.1097/00004728-200205000-00007.

Abstract

We present two cases of sclerosing hemangioma of the lung with a peculiar radiologic finding: an air-trapping zone surrounding the tumor. On microscopic examinations, the tumor was of the hemangiomatous subtype, and the radiolucent zone corresponded to enlarged alveoli with septal destruction. A possible mechanism in the production of an air-trapping zone around a sclerosing hemangioma is bleeding from the highly vascular tumor followed by expectoration in communication with an airway. We reviewed the literature on the air meniscus sign in sclerosing hemangioma and concluded that although it is not a common finding, it could be of help in the confident diagnosis of sclerosing hemangioma and in differentiating it from other benign tumors of the lung.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Diagnosis, Differential
  • Female
  • Hemorrhage / diagnostic imaging
  • Hemorrhage / pathology
  • Hemosiderin / metabolism
  • Histiocytoma, Benign Fibrous / diagnostic imaging*
  • Histiocytoma, Benign Fibrous / pathology
  • Humans
  • Lung Neoplasms / diagnostic imaging*
  • Lung Neoplasms / pathology
  • Lung, Hyperlucent / diagnostic imaging*
  • Lung, Hyperlucent / pathology
  • Macrophages, Alveolar / pathology
  • Middle Aged
  • Pulmonary Alveoli / diagnostic imaging
  • Pulmonary Alveoli / pathology
  • Pulmonary Emphysema / diagnostic imaging*
  • Pulmonary Emphysema / pathology
  • Tomography, X-Ray Computed*

Substances

  • Hemosiderin