"The vast majority of pulmonary hamartomas are located peripherally within the lungs (>90%), with endobronchial hamartomas representing only ~5% (range 1.4-10%) of such lesions 10-11."
"Often discovered incidentally, they are typically well-circumscribed nodules or masses (usually small) with either smooth or lobulated margins. Approximately 60% have fat 7, and approximately 20-30% have calcification/ossification (popcorn-like) 3. Cavitation is not seen."
"T1: heterogeneous signal"
"T2:"
"T1 C+ (Gd): heterogeneous enhancement is seen"
"marked homogenous contrast enhancement"
"Patients usually present in the 4th and 5th decades of life, whereas it is very uncommon in children. There is a recognised male predilection (M:F = 2.5:1). Most lesions are diagnosed incidentally."
"If fat is visualised, the differential is narrow, and importantly includes metastases from renal cell cancer, liposarcoma and epithelioid angiomyolipoma. Almost all cases representing pulmonary hamartoma. See differential of fat-containing solitary pulmonary nodule."