[A woman with a blue coloured skin].

A 66-year-old woman with carcinoma of the breast developed a blue-grey colouring of the skin, after injection of patentblue for sentinel node procedure. This is a rare hypersensitivity reaction on patentblue, with the risk of depression of oxygen saturation or anaphylactic shock.

[Perineal nodular induration].

A 33-year-old man visited the outpatient department of the authors of this article with a large perineal mass. The patient was an active amateur racing cyclist. At physical examination the swelling resembled an accessory scrotum.