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Museum of Pathology

MALIGNANT MELANOMA - SKIN

MALIGNANT MELANOMA - SKIN

Clinical History

A 37 year old woman presented with a mole on the thigh which had begun to grow and change in colour over the previous few months.

Pathology

The specimen consists of a bisected ellipse of skin measuring 3.5 cm in largest diameter. In the centre of the specimen there is a large nodular pigmented tumour (whole 2.8 x 2.9 x 1.9 cm) elevating and extending down into subcutaneous fat. A few thin elongated hairs persist on the tumour surface. There is some brown discolouration of the surrounding skin suggesting spread of tumour. Histologically, this proved to be a nodular malignant melanoma.