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A Case of Dermatitis Neglecta: DISCUSSION
26 Feb2011
Poskitt et al first described dermatitis neglecta (unwashed dermatosis) in 1995. They reported 3 cases of pigmented hyperkeratotic plaques on various sites, and these plaques were the result of avoiding washing the affected areas. Ruiz-Maldonado et al added two more cases of dermatitis neglecta in 1999, and the lesions resembled verrucous nevi around the areolas and pubic areas. All of the lesions were rapidly resolved by normal washing with gentle wiping from an alcohol swab. For our patient, the lesion was on the umbilicus and it resembled psoriasis or nevoid acanthosis nigricans localized to the umbilicus, and this type of case has rarely been reported.
- In: Disease
- Tags: Dermatitis neglecta, Unwashed dermatosis
A Case of Dermatitis Neglecta: CASE REPORT
25 Feb2011
A 29-year-old man presented with an asymptomatic thick scaly plaque on the umbilicus (Fig. 1A). The lesion was incidentally found by the patient himself the day before he visited the clinic. He reported no history of any preceding eruption, injury to the skin or any family history of skin diseases. On the physical examination, there was a hyperkeratotic plague on the umbilicus with silvery scales. During skin biopsy, gentle swabbing with H2O2 and saline gauze was done. Histopathologic examination showed orthokeratotic hyperkeratosis and anastomosing rete ridges (Fig. 2). He was not given any other medications and the patient revisited our clinic 10 days after the skin biopsy.
- In: Disease
- Tags: Dermatitis neglecta, Unwashed dermatosis
A Case of Dermatitis Neglecta
24 Feb2011
INTRODUCTION
Dermatitis neglecta (unwashed dermatosis) was first described by Poskitt et al in 1995. They reported 3 cases of pigmented hyperkeratotic plaques on various sites, and these plaques were the result of avoiding washing the affected areas. All of the lesions were rapidly resolved with normal washing by gently wiping with an alcohol swab.
- In: Disease
- Tags: Dermatitis neglecta, Unwashed dermatosis
LPP, a disease of unknown etiology, manifests as hyperpigmented, dark brown, occasionally pruritic macules and/or papules. The course of the disease is characterized by exacerbations and remissions. It is known to be more chronic than classical LP is.
With regard to the coexistence of classic LP in a number of LPP patients and the histopathological resemblance between these two disorders, many authors have suggested that LPP is a variant of LP.
The first patient was a 49-year-old woman who presented complaining of violaceous reticulated patches and scattered rice grain-sized macules localized to the left inguinal area for several months (Fig. 1A). She had no subjective symptoms, such as pruritus or pain. She had not come into contact with any chemicals, animals, or plants, nor had she been using any medications that could prompt an allergic response. Her medical and family history were non-contributory. A skin biopsy from a violaceous patch revealed irregular acanthosis, vacuolar alteration of the basal layer, and marked band-like dermal lymphocytic infiltration with pigment incontinence (Fig. 1B). These histological features suggested the presence of classic LP. Thereafter, the lesions slowly flattened and changed color to brown. Although we could not examine the flattened lesions histologically, we hypothesized that lesions of classic LP located only in intertriginous areas may have changed into LPP sometime later.
INTRODUCTION
Lichen planus pigmentosus-inversus (LPP-inversus) is an extremely rare variant of lichen planus (LP), and only a few cases have been reported. We have already seen one patient with LPP-inversus, and that case has been published. Recently, we saw two more cases of LPP-inversus. Read the rest of this entry »
Coral is an aquatic organism that belongs to the phylum Cnidari. It is composed of many calcified polyps that contain tentacles with venom-filled cells called nematocysts. There are two types of coral injuries: stings and lacerations. Of the two, stings are caused injected nematocysts which contain toxins like calcium carbonate and are generated from hard coral reef structures. The coral injuries occur most commonly on forearms, elbows, knees, and other areas unprotected by gloves or the diving suits which are used for sports diving and other marine-related activities. The initial responses of coral injuries including stinging pain, erythema, and swelling occur immediately to within several hours around the wound. These symptoms result from coral poisoning. Systemic symptoms such as low grade fever also may be present but do not necessarily indicate an infection.
- In: Main
- Tags: Cellulitis, Coral