(aka Sugar Tumor)

Epidemiology

• Rare tumor
• First appears in adulthood

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Physiology

• Benign lung neoplasm

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Pathology

• Polygonal cells with abundant clear, finely-vacuolated cytoplasm (glycogen=sugar tumor)/multinucleated giant cells
• Immunohistochemical stains are useful to rule out renal cell/primary clear cell carcinoma of lung

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Clinical

• Lung Nodule (see [[Lung Nodule or Mass]]): usually asymptomatic
  • CXR/Chest CT: well-circumscribed, solitary lung nodule (usually <3 cm, but may be as large as 6 cm)

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Treatment

• Surgery: diagnosis usually made at exploratory thoracotomy/autopsy

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References

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