Treatment of acne conglobata with modern external beam radiation.

Like other diseases of the follicular occlusion tetrad, acne conglobata can be difficult to treat. We describe the successful use of modern external beam radiation for acne conglobata in the case of a 53-year-old man with long-standing and disfiguring acne conglobata and hidradenitis suppurativa. For patients with severe acne conglobata resistant to more accepted therapies, modern external beam radiation may be a viable alternative on the therapeutic ladder.