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References 1. Rhee HJ van der, Burgh-de Winter CP van der, Daems WT. The differentiation of monocytes into macrophages, epithelioid cells, and multinucleated giant cells in subcutaneous granulomas. I. Fine structure. Cell Tissue Res 1979; 197: 355-78. 2. Rhee HJ van der, Tijssen JG, Herrmann WA, Waterman AH, Polano MK. Combined treatment of psoriasis with a new aromatic retinoid (Tigason) in low dosage orally and triamcinolone acetonide cream topically: a double-blind trial. Br J Dermatol 1980; 102: 203-12. 3. Rhee HJ van der, Spek-Keyser LM van der, Westering R van, et al. Increase in and stabilization of incidence and mortality of primary cutaneous malignant melanoma in Western Netherlands, 1980-95. Br J Dermatol 1999; 140: 463-7. 4. Spek-Keyser LM van der, Rhee HJ van der, Toth G, et al. Site, histological type, and thickness of primary cutaneous malignant melanoma in western Netherlands since 1980. Br J Dermatol 1997; 136: 565-71. 5. Rhee HJ van der, Vries E de, Coebergh JW. Does sunlight prevent cancer? A systematic review. Eur J Cancer 2006; 42: 2222-32. 6. Rhee HJ van der, Coebergh JW, Vries E de. Is prevention of cancer by sun exposure more than just the effects of vitamin D? A systematic review of epidemiological studies. Eur J Cancer 2013; 49: 1422-36. Ambulatory phlebectomy for branch varicosities Kees-Peter de Roos Kees-Peter de Roos (1960) studied medicine at the University of Maastricht and went on to train as a dermatologist at the University Medical Center of Maastricht. Halfway through de Roos’s training in 1992, Martino Neumann became head of the dermatology department and introduced him to the art of ambulatory phlebectomy. A case report on a complication of this technique was published in 1994.[1] Before leaving Maastricht in 1994, De Roos organised several ‘hands-on’ workshops on this topic. Although some phlebologists had already experimented in the ankle region, the phlebologic dogma in that period was ‘never to treat varicose veins below the ankle’. Neumann and De Roos started to register the results of ambulatory phlebectomy in this particular location and found it to be a safe technique.[2,3] They additionally performed a randomized clinical trial comparing conventional sclerocompression therapy to ambulatory phlebectomy (AP).[4] It demonstrated that ambulatory phlebectomy is significantly superior to conventional sclero- compression therapy when comparing recurrences (2 vs. 37.5 % after two years) and patient satisfaction. This study formed the basis of de Roos’s thesis (2003). Since then, he has broadened his field of expertise by working as a co-supervisor of several PhD candidates [5,6], but also by initiating different studies on venous disease.[7-9] After more than 15 years in a general hospital, he started a private practice in general dermatology in 2009 that specialises in varicose veins and skin cancer. 166 BWEADVSMGFINCORR:Opmaak 1 21-07-2014 17:41 Pagina 166