L11 RARE AND TROPICAL DERMATOSES AFFECTING THE SCALP
Soliman M
Faculty of Medicine, Cairo University, Cairo, Egypt

In the field of dermatology some diseases may have different or varied clinical pictures depending on the site affected. Other diseases may not be clarified until they classically present in their typical sites. Examples of conditions affecting the scalp are presented to throw light on the importance and value of thinking of these conditions. Some very rare or unusual cases are included in the presentation of various rare and tropical dermatoses affecting the scalp. Genetic cases include a new case of congenital atrichia with unusual papillary formations affecting the palms and nail dystrophy in a brother and sister. Cases of Hallerman Streiff syndrome, Goltz syndrome, Christ Siemens syndrome, Clouston syndrome and Johansson-Blizzard syndrome are included. Waardenberg syndrome cases are also included. Juvenile hyaline fibromatosis cases, xeroderma pigmentosum cases, and basal cell nevus syndrome cases are presented. Fungal infection cases include cases of dermal dermatophytic granuloma, tinea capitis in adults, favus of the scalp, body and eosinophilic cellulitis, and white piedra of the scalp. Detailed cultural and electron microscopic picture is presented. Bacterial infections include cases of lupus vulgaris with malignant degeneration, and disseminated tuberculous scalp lesions, leprosy of scalp, tufted folliculitis and necrotizing fasciitis. Virus infections include cases of epidermodysplasia verruciformis of scalp, and cases of herpes zoster with scalp affection. Connective tissue diseases include cases of lupus erythematosus with malignant degeneration. Scalp tumors include cases of follicular mycosis fungoides, B-cell lymphoma, folliculosebaceous cystic hamartoma, sebaceous carcinoma, amyloidoma, and secondaries of mammary and bronchial carcinoma. Psychocutaneous scalp manifestations include trichotemnomania and battered child syndrome.