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Tinea unguium: fungal infection of the fingernails and toenails, and the nail bed; Tinea corporis: fungal infection of the arms, legs, and trunk; Tinea cruris : fungal infection of the groin area; Tinea manuum: fungal infection of the hands and palm area; Tinea capitis: fungal infection of the scalp and hair
Tinea manuum (or tinea manus [3]) is a fungal infection of the hand. [2] It is typically more aggressive than tinea pedis but similar in look. Itching, burning, cracking, and scaling are observable and may be transmitted sexually or otherwise, whether or not symptoms are present.
Some of these skin infections are known as ringworm or tinea (which is the Latin word for "worm"), though infections are not caused by worms. [3] [7] It is thought that the word tinea (worm) is used to describe the snake-like appearance of the dermatophyte on the skin. [7] Toenail and fingernail infections are referred to as onychomycosis ...
Onychomycosis, also known as tinea unguium, [4] is a fungal infection of the nail. [2] Symptoms may include white or yellow nail discoloration, thickening of the nail, and separation of the nail from the nail bed. [2] Fingernails may be affected, but it is more common for toenails. [3] Complications may include cellulitis of the lower leg. [3]
Approximately 80–93% of chronic dermatophyte infections in many parts of the developed world are thought to be caused by T. rubrum, including cases of tinea pedis (foot), tinea unguium (nail), tinea manuum (hand), tinea cruris (groin), and tinea corporis (arms and leg), as well as some cases of tinea barbae (beard). [5]
Tinea manuum is a fungal infection of the hand, mostly a type of dermatophytosis, often part of two feet-one hand syndrome. [ 2 ] [ 4 ] There is diffuse scaling on the palms or back of usually one hand and the palmer creases appear more prominent. [ 2 ]
Fungal infections have a world-wide distribution and are common, affecting more than one billion people every year. [11] An estimated 1.7 million deaths from fungal disease were reported in 2020. [12] Several, including sporotrichosis, chromoblastomycosis and mycetoma are neglected. [16]
Trichophyton rubrum and Trichophyton interdigitale cause athlete's foot (tinea pedis), toenail fungal infections (a.k.a. tinea unguium, a.k.a. onychomycosis), crotch itch (a.k.a. tinea cruris), and ringworm (a misnomer, as there is no worm involved; it is also known as tinea corporis).