Eczema hyperkeratotic

Glycolic or lactic acid 15-20% has been used in the treatment of hyperkeratotic eczema and hyperkeratosis of the palms and soles. 

Raynaud phenomenon ( white/dead fingers ) and sclerodactyly from vibration Post-traumatic eczema Chronic hyperkeratotic hand eczema... 

Chronic hyperkeratotic dermatitis is chiefly encountered in middle-aged or elderly men. It may be a manifestation of psoriasis (Menne and Bachman 1979). However, a 10-year review of 32 cases by Hersle and Mobacken (1982) did not support this view. Thirteen of their patients had been engaged in hard manual work. They proposed a clinically real entity of hyperkeratotic hand eczema. Wilkinson (1985) suggested that friction and pressure play a determining role in this condition. The condition is severe and accounted for 2.5% of all applications for permanent disability determined in a Danish study (Menne and Bachman 1979). Hyperkeratotic dermatitis of the palms was reviewed recently by Menne (1994), and he accepted this disease as an own entity, independent of psoriasis and of mechanical irritation. 

Menne T (1994) Hyperkeratotic dermatitis of the palms. In Menne T, Maibach HI (eds) Hand eczema. CRC Press, pp 95-98... 

The most common form of tinea pedis is located in the toe webs. The fourth interdigital web is preferentially infected, but the other webs can also be infected, on one or both feet. The clinical symptoms are characterised by a whitish, diffuse maceration in the cleft marginated by a collarette of continuous desquamation (Fig. 10). In some cases, there is a small, painful fissure running along the line of the cleft. The entire area is ulcerative and macerated from microbial superinfection. Itching is usually present. In T. rubrum infections, a squamous, hyperkeratotic variety that is particularly chronic and resistant to treatment and that affects the soles, heels and sides of the feet ( moccasin foot ), is often found (Hay and Moore 1998). The dorsal surfaces of the toes and feet are not often affected, but associated onychomycosis is common. Tinea pedis is sometimes associated with reactive plantar pompholyx extremely pruritic, coalescent vesicular eczema is observed. Microscopic examination sometimes reveals the presence of dermatophytic filaments in these so-called id reactions. 

Infections of the dorsal aspect of the hands resemble ringworm of the glabrous skin. Ringworm of the palmar skin (palm and palmar aspect of the fingers) presents a particular clinical picture. There is dusty desquamation on an erythematous background, with pearl white accentuation of the palmar flexor folds. The appearance is very similar to that of some cases of hyperkeratotic palmar eczema but, in tinea manuum. 

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