Squamous cell carcinoma of the lung CT

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

Overview

Computed tomography is the method of choice for the diagnosis of squamous cell carcinoma of the lung. On CT, findings of squamous cell carcinoma of the lung will depend on the location of the tumor, characteristic findings include: ground-glass opacity, rounded or spiculated mass, local nodal involvement, intraluminar obstruction, and lobar collapse.

CT

  • CT is the modality of choice for the evaluation of possible squamous cell carcinoma of the lung
  • Certain morphological features can be suggestive of squamous cell carcinoma of the lung, such as:[1][2]
  • CT features involved in the diagnosis of squamous cell carcinoma of the lung, include:
  • Staging of the disease
  • Dictation of the prognosis and treatment
  • CT findings of squamous cell carcinoma of the lung, include:
Central location
Peripheral location
  • Solid nodule/mass with or without an irregular border
  • Irregular margins
  • Desmoplastic reaction or infiltrative growth
  • Similar to central lung cancer, peripheral squamous cell carcinoma of the lung can also result in obstructive changes such as a mucocele.
  • On CT, signs of squamous cell carcinoma of the lung, may include:[3][2]
  • Finger in glove sign: the bronchus distal to the obstruction is dilated
  • Crazy-paving sign: appearance of ground-glass opacity with superimposed interlobular septal thickening and intralobular reticular thickening

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References

  1. Rosado-de-Christenson ML, Templeton PA, Moran CA (1994). "Bronchogenic carcinoma: radiologic-pathologic correlation". Radiographics. 14 (2): 429–46; quiz 447–8. PMID 8190965. doi:10.1148/radiographics.14.2.8190965. 
  2. 2.0 2.1 Parker MS, Chasen MH, Paul N (2009). "Radiologic signs in thoracic imaging: case-based review and self-assessment module". AJR Am J Roentgenol. 192 (3 Suppl): S34–48. PMID 19234288. doi:10.2214/AJR.07.7081. 
  3. Kundel HL (1981). "Predictive value and threshold detectability of lung tumors". Radiology. 139 (1): 25–9. PMID 7208937. doi:10.1148/radiology.139.1.7208937. 
  4. href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/29297">rID: 29297
  5. href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/29002">rID: 29002
  6. href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/27915">rID: 27915

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