In lung X-ray, heterogenous shadow is due to:
C i.e. Metastasis Pulmonary metastasis is radiologically hetrogenousQ due to occurance of cavitation (more common in squamous cell carcinoma) & calcification (most often in osteogenic SAQ & rarely in chondrosarcoma.
Haemangiorma
Pulmonary infarction
Metastatic lesion
TB