Cases reported "parakeratosis"

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1/40. Submammary granular parakeratosis: an acquired punctate hyperkeratosis of exogenic origin.

    Granular parakeratosis is a histologic phenomenon that produces a characteristic clinical picture with multiple brownish and hyperkeratotic papules. In all 6 published cases of localized axillary parakeratosis, excessive use of different topical preparations (cream-type products, deodorants that include roll-on and stick types, antiperspirants, shampoos, bath soaps) was reported by the authors. The exact pathogenic causal relationships have not yet been resolved. In the case reported below, we demonstrate for the first time that the macro- and micromorphological entities can also occur in the submammary region. ( info)

2/40. psoriasis associated with human immunodeficiency virus in an infant.

    psoriasis is commonly reported in association with hiv in adults. A 3-month-old girl with hiv presented with a widespread eruption and was diagnosed with psoriasis. This is the first infant reported with psoriasis in association with hiv infection. The relationship between the two entities is discussed, as is the role of treatment with zidovudine. ( info)

3/40. Congenital unilateral benign papillomatosis of the mouth.

    A 29-year old man had an unusual unilateral lesion of the mucous membranes of the mouth, including the lips, buccal mucosa, hard and soft palate, and uvula. The lesion was a conglomerate of tiny papillomas and had been present since birth. At the age of 8 years, a mass extending from the uvula into the pharynx was surgically excised. The histopathological findings showed acanthosis, papillomatosis, and an inflammatory infiltrate. The findings represent a rare case and perhaps a unique one, to my knowledge. ( info)

4/40. Granular parakeratosis in a child.

    Granular parakeratosis has only recently been described and typically occurs in adults. We report the first instance of this condition affecting a child. ( info)

5/40. Granular parakeratosis: resolution with topical tretinoin.

    Granular parakeratosis is an unusual acquired dermatosis characterized by intertriginous keratotic papules. Histologic examination shows parakeratosis with large numbers of basophilic keratohyaline granules within the stratum corneum. We report a case of a granular parakeratosis of the axilla that cleared rapidly with topical administration of tretinoin. ( info)

6/40. Granular parakeratosis: four paediatric cases.

    Axillary granular parakeratosis (GP) was first described in 1991 as a peculiar eruption presenting with erythematous hyperpigmented and hyperkeratotic papules and plaques of the cutaneous folds frequently associated with pruritus. Histopathology shows a characteristic picture with a conspicuous granular appearance of the parakeratotic horny layer. Until now, only 24 adults, mainly women aged over 40 years, have been reported with GP. We demonstrate that this condition can also occur in young children. Four children aged between 10 and 24 months had asymptomatic hyperpigmented scaling papules 2-3 mm in diameter located on the groin, lower back, buttocks and flanks. In all cases the mothers reported the habit of frequent washing followed by application of many topical products. biopsy revealed the same features in all four patients: the epidermis showed a thickened horny layer with a unique compact parakeratosis with maintenance of the stratum granulosum and marked retention of keratohyaline granules throughout the stratum corneum. ( info)

7/40. Intertriginous granular parakeratosis responsive to potent topical corticosteroids.

    Granular parakeratosis is a recently recognized disorder of keratinization that is confined to intertriginous body sites. The histological features are distinctive. Aetiology is unclear at present but factors such as friction, perspiration and chemical irritation may be relevant. We describe three cases of granular parakeratosis that were notable for their rapid response to potent topical corticosteroids. ( info)

8/40. Granular parakeratosis: a case report and literature review.

    BACKGROUND: Granular parakeratosis is suspected to result from an error in epidermal differentiation, leading to variably pruritic, hyperpigmented-to-erythematous patches and plaques. Characteristic histopathologic features include a thickened stratum corneum, compact parakeratosis with retention of keratohyalin granules, vascular proliferation, and ectasia. The pathogenesis of this entity is uncertain. methods: We present a case of axillary granular parakeratosis and review the literature. RESULTS: The lesion showed a thickened stratum corneum with compact parakeratosis, slight epidermal hyperplasia, and a sparse perivascular lymphohistiocytic infiltrate. Keratohyalin granules were diffusely present within the parakeratotic stratum corneum, and the retained granular layer showed focal vacuolization. CONCLUSIONS: Granular parakeratosis is a rare form of parakeratosis most often seen in the axilla, although other intertriginous areas may be affected. Unique histopathologic findings allow for a specific diagnosis to be made. Although an irritant contact reaction appears causative, mechanical irritation may also play a role in inducing these skin changes. ( info)

9/40. Granular parakeratosis in children: case report and review of the literature.

    Granular parakeratosis is a cutaneous eruption with erythematous and/or brownish hyperkeratotic papules and plaques which are exclusively localized to intertriginous areas and show histopathologic features of an unusual form of parakeratosis. The etiology is unknown, but the excessive use of various topical preparations (e.g., ointments and deodorants) has been associated with this disease. It has heretofore been reported only in adults. We report two children, ages 3 and 5 months, with characteristic lesions in the groin associated with topical pomades used to prevent diaper rash. This is the first report associating the clinical presentation and the histopathologic diagnosis of granular parakeratosis in children. The literature on this entity is also reviewed and all case reports are summarized. ( info)

10/40. Follicular granular parakeratosis.

    An 83-year-old patient presented herself with a ten-year history of keratotic papules on her trunk. A biopsy of this process revealed granular parakeratosis confined to the infundibulum of a follicle. Exclusive follicular involvement in granular parakeratosis has not been previously described. ( info)
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