Hamartoma chest x ray

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2] ; Vamsikrishna Gunnam M.B.B.S [3]


On chest radiography, lung hamartomas are characterized by a sharply demarcated pulmonary nodule and popcorn calcification (feature of chondroid calcifications in hamartomas).

Chest X Ray

  • Chest radiography (CXR) is non-specific and demonstrates soft tissue attenuation and a well-circumscribed mass with either smooth or lobulated margins.[1][2][3][4][5]
  • On chest radiography, common findings of pulmonary hamartoma include:
  • Calcification ("popcorn pattern")
    • Popcorn pattern is a reliable indicator of a benign lesion but is present in only a minority of cases[1]
  • Fat: the lesion is typically of low density for its size[6]
  • There are no CXR findings associated with other types of harmartomas[1]


  1. 1.0 1.1 1.2 Gaerte SC, Meyer CA, Winer-Muram HT, Tarver RD, Conces DJ (2002). "Fat-containing lesions of the chest". Radiographics. 22 Spec No: S61–78. doi:10.1148/radiographics.22.suppl_1.g02oc08s61. PMID 12376601.
  2. Itoga, Masamichi; Kobayashi, Yoshiki; Takeda, Masahide; Moritoki, Yuki; Tamaki, Mami; Nakazawa, Kenji; Sasaki, Toru; Konno, Hayato; Matsuzaki, Ikuo; Ueki, Shigeharu (2013). "A Case of Pulmonary Hamartoma Showing Rapid Growth". Case Reports in Medicine. 2013: 1–3. doi:10.1155/2013/231652. ISSN 1687-9627.
  3. Radosavljevic V, Gardijan V, Brajkovic M, Andric Z (2012). "Lung hamartoma--diagnosis and treatment". Med Arch. 66 (4): 281–2. PMID 22919888.
  4. Kishore M, Gupta P, Preeti, Deepak D (November 2016). "Pulmonary Hamartoma Mimicking Malignancy: A Cytopathological Diagnosis". J Clin Diagn Res. 10 (11): ED06–ED07. doi:10.7860/JCDR/2016/22597.8844. PMC 5198332. PMID 28050379.
  5. Steen-Hansen E (October 1987). "The diagnostic value of chest X-ray combined with fine-needle aspiration biopsy in patients suspected for pulmonary hamartomas". Rontgenblatter. 40 (10): 321–4. PMID 3685839.
  6. Hansen CP, Holtveg H, Francis D, Rasch L, Bertelsen S (1992). "Pulmonary hamartoma". J. Thorac. Cardiovasc. Surg. 104 (3): 674–8. PMID 1513155.

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