Lymphangio-myomatosis : Differential
Comments:
The differential diagnosis of lymphangiomyomatosis includes Langerhans cell histiocytosis, Birt-Hogg-Dube syndrome, extensive centrilobular emphysema, benign metastasizing leiomyoma, and metastatic cellular fibrous histiocytoma. The image shows considerable thickening of alveolar septa due to proliferation of spindle-shaped myoid cells.