Although pulmonary hamartomas are common benign tumors of the lungs, endobronchial hamartomas are very rare in women. We present a middle-aged woman with an endobronchial hamartoma and obstructive pneumonitis. The correlations between the ultrasonographic and pathologic features are the first described in the literature. The characteristic findings included a well-defined, iso- to hyperechoic central tumor with a regular margin, in one wedge-shaped hypoechoic heterogeneous consolidation. She underwent surgical removal of the tumor. No recurrence was noted after ten months of follow-up.