Photocontact dermatitis Photocontact dermatitis is an inflammatory skin reaction that occurs when ultraviolet (UV) or visible light interacts with a topically applied or systemically taken
What is PABA PABA (C7H7NO2) also called para-aminobenzoic acid or 4-aminobenzoic acid, is a natural substance that naturally occur in these foods: brewer's yeast, liver,
Yolk sac carcinoma Yolk sac carcinoma also known as malignant yolk-sac tumors or endodermal sinus tumors, is a rare aggressive malignant cancer that forms in
What is a papilloma on the eyelid An eyelid papilloma is any lesion on the eyelid that is papillomatous, that is, of smooth, rounded, or
What is floppy eyelid syndrome Floppy eyelid syndrome is an ophthalmologic disorder characterized by laxity of the upper eyelids leading to spontaneous eversion of the
What is congenital ptosis Congenital ptosis also called congenital blepharoptosis, is a drooping eyelid that is present at birth or within the first year of life.
What is sebaceous hyperplasia Sebaceous hyperplasia is the term used for enlarged sebaceous glands (skin oil glands) seen on the forehead or cheeks of the
What is porokeratosis Porokeratosis is a group of uncommon skin conditions in which there is abnormal keratinization ((Williams GM, Fillman EP. Porokeratosis. . In: StatPearls
What is syringoma Syringoma is a harmless eccrine sweat duct tumor which occur predominantly in young women in early adulthood ((Ghanadan A, Khosravi M. Cutaneous syringoma:
What is trichomycosis pubis Trichomycosis pubis also called trichobacteriosis pubis, is a bacterial infection of the pubic hair shaft, caused by Corynebacterium species, in sweat