2025-11-272025-11-27http://hdl.handle.net/2263/106632Clinical history : An adult female patient with a six months history of a small lesion of the nailbed of the right thumb; it enlarged rapidly to a 5 x 5 x 5cm large tumour that eroded the bone of the terminal phalanx.The left thumb was amputatedDiagnosis: Amelanotic malignant melanoma