Parekh P K
Med J Zambia. 1981 Feb-Mar;15(2):25-9.
An unusual case of giant-cell tumours of the tendon sheath (syn. Pigmented villonodular tenosynovitis or fibrous xanthoma) of a long thumb flexor is presented. The unusual features are: two distinctly different tumours of almost similar size and shape arising from the tendon sheath at its either ends but with a segment of normal tendon sheath in between and presence of early malignant changes in the distal tumour with a benign proximal one, confirmed microscopically. Lastly, radiograph showed definite bony involvement in the proximal phalanx of the thumb. On extensive review of the literature, I found reports of rare presentation of malignant changes and bony erosion, but none had these various features.
本文报告了一例罕见的拇长屈肌腱腱鞘巨细胞瘤（同义词：色素沉着绒毛结节性腱鞘炎或纤维性黄色瘤）。其不寻常之处在于：腱鞘两端出现两个大小和形状几乎相似但明显不同的肿瘤，中间有一段正常腱鞘，且远端肿瘤存在早期恶性改变，近端肿瘤为良性，经显微镜检查得以证实。最后，X线片显示拇指近节指骨有明确的骨质受累。在广泛查阅文献时，我发现了关于恶性改变和骨质侵蚀罕见表现的报道，但均无这些多样的特征。
