Mahajan Neetin P, Chaudhari Kunal, Kondewar Pranay, Gund Akshay, Jarika Ashish
Department of Orthopaedics, Grant Government Medical College, Mumbai, Maharashtra, India.
J Orthop Case Rep. 2022 Jul;12(7):51-54. doi: 10.13107/jocr.2022.v12.i07.2914.
The giant cell tumor of bone (GCTB), also known as an osteoclastoma or a myeloid sarcoma, is a benign local aggressive osteolytic bone tumor that primarily affects skeletally mature young adults typically 20-40 years of age. Giant cell tumors (GCTs) are usually solitary tumors and very rarely are found in the metatarsal bones. The characteristic histological appearance of GCT displays a high number of osteoclast-like multinucleated giant cells, which resulted in the classification "osteoclastoma" or "giant cell tumor."
A 38-year-old male presented to the hospital with a firm swelling over the 2nd metatarsal slowly progressing over a period of 4 months, initial screening radiological investigations included X-rays, X-rays showed a tumorous growth involving the shaft of the 2nd metatarsal of the right foot, and the X-rays showed a characteristic soap bubble appearance. Magnetic resonance imaging. On gross assessment, the intraoperative sample showed that the GCTB has a dark brown-to-reddish appearance that is friable in texture. The gold standard for diagnosing a GCT is based on biopsy histopathological findings. The key histomorphologic feature is multinucleated giant cells.
Giant cell tumors are frequently locally aggressive with high recurrence percentage, hence, excision was done. Nowadays, early radiological screening techniques help early detection of such rare occurrence of tumors such as the GCT and appropriate management. In conclusion, the giant cell tumor of the bone is a unique presentation of stromal cell and hematopoietic interaction in the bone.
骨巨细胞瘤(GCTB),也被称为破骨细胞瘤或髓样肉瘤,是一种良性的局部侵袭性溶骨性骨肿瘤,主要影响骨骼成熟的年轻人,通常为20至40岁。巨细胞瘤(GCTs)通常为单发肿瘤,很少见于跖骨。GCT的特征性组织学表现为大量破骨细胞样多核巨细胞,这导致了“破骨细胞瘤”或“巨细胞瘤”的分类。
一名38岁男性因右足第2跖骨处出现坚实肿胀,持续4个月且逐渐进展而入院。初步筛查的影像学检查包括X线,X线显示肿瘤生长累及右足第2跖骨干,呈现出特征性的肥皂泡样外观。磁共振成像。大体评估时,术中样本显示GCTB外观呈暗褐色至微红,质地易碎。诊断GCT的金标准基于活检组织病理学结果。关键的组织形态学特征是多核巨细胞。
巨细胞瘤通常具有较高的局部侵袭性和复发率,因此进行了切除。如今,早期影像学筛查技术有助于早期发现GCT等罕见肿瘤并进行适当管理。总之,骨巨细胞瘤是骨中基质细胞与造血细胞相互作用的独特表现。