To the Editor: Giant cell reparative granuloma
(GCRG) is a nonneoplastic, benign lesion derived from bone tissue.
Histologically, giant cell reparative granuloma
(GCG) looks like GCT.
Shafer, "The central giant cell reparative granuloma
of the jaws.
 Giant cells containing lesions in small bones are usually aneurismal bone cyst or giant cell reparative granuloma
. Hence, these should be included in differential diagnosis of GCT in small bones.
The radiologic differential diagnosis of solitary lesions includes aneurysmal bone cyst, enchondroma, giant cell reparative granuloma
.  brown tumour of hyperparathyroidism, posttraumatic cyst.
Giant cell granuloma (GCG) was first described by Jaffe in 1953 as "giant cell reparative granuloma
", but currently does not referred as reparative, because of its locally destructive.
Central giant cell reparative granuloma
is an infrequent, benign, proliferating lesion affecting the maxilla, mandible and, rarely, cranial bones.
The medical records of equal number of patients (25 patients with stapedotomy and 25 patients with stapedectomy) were analyzed for hearing improvement or deterioration, postoperative nausea, vomiting, vertigo, nystagmus, perilymph fistula, reparative granuloma
, labyrinthitis, tinnitus and perforation of the tympanic membrane.
Differential diagnosis for lesions that centered within the thyroid or crycoid cartilage includes giant cell reparative granuloma
, brown tumor of hyperparathyroidism, osteoblastoma, chondroblastoma, chondrosarcoma, chondroma, aneurysmal bone cyst, nonossifying fibroma, foreign body reaction, benign fibrous histiocytoma, malignant fibrous histiocytoma, osteosarcoma with abundant giant cells, and carcinoma (including spindle cell or sarcomatoid carcinoma) with giant cells.
(19) The so-called solid variant of ABC, (20) is nothing more than a giant cell reparative granuloma
Giant cell reparative granuloma
(peripheral): report of 50 cases.
Peripheral giant cell granuloma (PGCG) is an infrequent exophytic lesion of the oral cavity, also known as giant cell epulis, osteoclastoma, giant cell reparative granuloma
, or giant-cell hyperplasia.