15 October 2025
: Case report 
Uncommon Localization of Tenosynovial Giant Cell Tumor in the Coracoclavicular Ligament: Diagnostic Challenges
Challenging differential diagnosis, Rare disease
Zeming Li CDEF 1, Hao Feng BF 1, Lingyun Chen BF 2, Jun Yao A 1, Hongtao Wang A 1*DOI: 10.12659/AJCR.949269
Am J Case Rep 2025; 26:e949269
Figure 4 Pathological examination. (A) Pathological macroscopic view: a piece of grayish grayish-brown tissue, size 3.5×2×1.5 cm; (B–D) microscopic view (hematoxylin and eosin staining): the (B) and (C) magnification is 40×, while the (D) magnification is 100×, showing monocyte-like fibrous tissue hyperplasia, a large number of multinucleated giant cell reactions, hemosiderosis, and scattered osteoclastic-like giant cells.