1A: Chest radiograph showing a lobulated mass in the right chest suggestive of a benign pleural tumour. 1B: CT-scan showing a lobulated mass in the right chest suggestive of a benign pleural tumour. 1C: Tumour at macroscopy, well-circumscribed and encapsulated. 1D: Cut surface of the tumour tan-coloured and whorled appearance. 1E: Photomicrograph showing bland spindle cell proliferation with a patternless architecture, and hypo- and hypercellular areas separated by dense collagenous fibrous stroma (H&E stain). 1F: Photomicrograph of tumour cells stained positive with CD34. 1F-inset: Electromicrograph depicting ultrastructural features of fibroblasts with abundant collagen.