Slide 191.Adenocarcinoma & Caseous granuloma, Lung

A. Brief Descriptions

  1. Caseous granuloma is caused by tuberculosis.

B. Gross Findings


C. Micro Findings

  1. Composed of epithelioid cells surrounded by a zone of fibroblasts and lymphocytes.

  2. Some necrosis (caseation) is usually present in the centers of these tubercles.

D. Others:

  1. It most occurs in the apex of the lung. (may be widely disseminated in the lungs, kidneys, meninges, marrows and other organs)

E. Reference

  1. Robbins Pathologic Basis of Disease, 6th ed. Ch.16. P.723~724.



Fig. 191-1 (LP)




Fig. 191-2 (LP)




Fig. 191-3 (HP)




Fig. 191-4 (HP)