No abstract

A 71-year-old man exhibited an acute acneiform rash affecting the face and the upper trunk about 2 weeks after starting cetuximab, an epidermal growth factor (EGF) receptor antagonist treatment for metastatic colon cancer. The skin eruption faded after stopping cetuximab and applying topical corticosteroids. The reexposure to cetuximab 3 weeks later provoked a more extended relapse of the skin rash, which then clinically and histologically corresponded to transient acantholytic dermatosis . While the acneiform cutaneous side effects of the EGF receptor antagonists are interpreted as a result of the direct interference with pilosebaceous follicle homeostasis, in this case an acrosyringium-related pathogenesis might be postulated. Applying topical corticosteroids and emollients, the cetuximab therapy could be pursued.

Treatment of pyogenic granuloma may be difficult in locations such as the face and fingertips. We successfully treated a 1 cm periungual fingertip pyogenic granuloma with a dye laser.

Zusammenfassung Die Behandlung eines Granuloma pyogenicum in Lokalisationen wie Gesicht oder Fingerkuppen gestaltet sich nicht immer einfach. Wir berichten über die erfolgreiche Therapie eines 1 cm messenden solchen Tumors periungual an einer Fingerkuppe mit dem Farbstofflaser.