Henry Francois Jordaan
Retired Head of Division of Dermatology at the Department of Internal Medicine, Faculty of Medicine and Health Sciences at Stellenbosch University, South Africa
Prof. Henry Francois Jordaan qualified as a medical doctor in 1972 (MBCHB/US), as a dermatologist in 1982 (MMED/US) and has followed an academic career until retirement in 2013. He was associate professor & HOD of the Division of Dermatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Stellenbosch and Tygerberg Hospital South Africa from 2003-2013. He is an honorary consultant at the Department of Anatomical Pathology at the same institution, dermatopathology, consultant for private pathology practices in the Western Cape and a clinical consultant for the Tygervalley Skin and Laser Centre. He is an honorary member of the Indian Society of Dermatopathology, a full member of the South African Academy for Science and Art and an honorary member of the Dermatological Surgical Society of South Africa.
He published 59 manuscripts in peer review journals, numerous papers in non-peer review journals and presented papers and posters at national and international congresses. His main interests are dermatopathology, skin signs of systemic disease, skin signs of HIV/AIDS, cutaneous tuberculosis and paediatric dermatology.
Short Description of the Lectures:
- Lesions in Linear and Other Patterns with Emphasis on Mosaicism:There are a number of mechanisms and causes for the development of linear skin lesions. Linear skin lesions might be related to Blaschko lines (eg lichen striatus), Langer’s lines (eg pityriasis rosea) and dermatomes (eg herpes zoster). Linear skin lesions may also be related to veins (eg thrombophlebitis), arteries (eg panarteritis nodosa) and lymphatics (eg lymphangiitis) Additional mechanisms include the Koebner phenomenon (eg psoriasis) , autoinoculation (eg HPV), external factors (eg smodingium dermatitis, and infestations (eg cutaneous larva migrans)
It is m not always possible to distinguish between lesions following these Blaschko lines, Langer’s lines, dermatomes or lesions created by Koebnerization.
There are two types of mosaicism, namely genomic and functional. The commonest pattern of expression of mosaicism is Blaschko lines. Blaschko lines are described as narrow (eg systematized linear epidermal nevus [SLEN]) or broad ( eg Mcune-Albright syndrome ). Other patterns of mosaicism include the checkerboard or flag-like pattern (eg Becker nevus & cutis marmorata telangiectatica congenita), phylloid pattern,(eg phylloid hypomelanosis in trisomy 13), patch pattern without midline separation (eg giant congenital melanocytic nevus) & lateralization pattern (eg CHILD syndrome)
Other unrelated morphological patterns will not be addressed such as annular/serpiginous and retiform lesions. Some cases will be discussed during the lecture.
- Cases from the Clinic
The following cases will be demonstrated:
- F/21 years with generalized lichen spinulosus (LS) with secondary follicular mucinosis (FM)
- F/2 years with nodular granulomatous phlebitis (NGP)
- M/53 years with cutaneous tuberculosis (lupus vulgaris)
- F/5 years with papulonecrotic tuberculide (PNT)
- M/6 months with lupus erythematosus panniculitis (LEP)
- F/15 months with acute hemorrhagic oedema of infancy (AHOI)