Radiothérapie des cancers cutanés au cours du xeroderma pigmentosum

Understanding photodermatoses associated with defective DNA repair: Syndromes with cancer predisposition

Hereditary photodermatoses are a spectrum of rare photosensitive disorders that are often caused by genetic deficiency or malfunction of various components of the DNA repair pathway. This results clinically in extreme photosensitivity, with many syndromes exhibiting an increased risk of cutaneous malignancies. This review will focus specifically on the syndromes with malignant potential, including xeroderma pigmentosum, Bloom syndrome, and Rothmund-Thomson syndrome. The typical phenotypic findings of each disorder will be examined and contrasted, including noncutaneous identifiers to aid in diagnosis. The management of these patients will also be discussed. At this time, the mainstay of therapy remains strict photoprotection; however, genetic therapies are under investigation.

Basaloid Squamous Carcinoma of Skin Associated with Xeroderma Pigmentosum in an 8-year-old Child: A Rare Entity

Xeroderma pigmentosum (XP) is a rare autosomal recessive genodermatosis associated with hypersensitivity to ultraviolet (UV) light, due to defects in deoxyribonucleic acid (DNA) repair. Basaloid squamous cell carcinoma is a rare aggressive variant of squamous cell carcinoma. Patients with XP are at increased risk of developing cutaneous malignancy and are commonly associated with squamous carcinoma. We report an extremely rare case of 8-year-old child with XP along with basaloidsquamous carcinoma of skin; and review of literature related to it.