| Borst-Jadassohn type intraepidermal epithelioma | <tumour> Precancerous lesions clinically suggestive of actinic or seborrheic keratosis, with nests of immature or abnormal keratinocytes within the epidermis. (05 Mar 2000) |
|---|---|
| intraepidermal | Within the epidermis. (05 Mar 2000) |
| intraepidermal carcinoma | <tumour> Carcinoma in situ of the skin; e.g., Bowen's disease. (05 Mar 2000) |
| Jadassohn, Josef | <person> German dermatologist in Switzerland, 1863-1936; introduced the patch test for contact dermatitis. See: Jadassohn's nevus, Borst-Jadassohn type intraepidermal epithelioma, Jadassohn-Pellizzari anetoderma, Jadassohn-Tieche nevus, Franceschetti-Jadassohn syndrome, Jadassohn-Lewandowski syndrome. (05 Mar 2000) |
| Jadassohn-Lewandowski syndrome | A syndrome of ectodermal dysplasia of abnormal thickness and elevation of nail plates with palmar and plantar hyperkeratosis; the tongue is whitish and glazed owing to papillary atrophy; autosomal dominant inheritance. Synonym: Jadassohn-Lewandowski syndrome. (05 Mar 2000) |
| Jadassohn-Pellizzari anetoderma | Cutaneous atrophy preceded by erythematous or urticarial lesions of the trunk and upper portions of the extremities, and enlarging to 2-3 cm before undergoing involution. (05 Mar 2000) |
| Jadassohn's nevus | Congenital papillary acanthosis of the epidermis, with hyperplasia of sebaceous glands developing at puberty and presence of apocrine glands in non-apocrine areas of the skin (commonly the scalp). A variety of epithelial tumours may arise from a nevus sebaceus in adult life, most commonly basal cell carcinoma. Synonym: Jadassohn's nevus, organoid nevus. (05 Mar 2000) |
| Jadassohn-Tieche nevus | A dark blue or blue-black nevus covered by smooth skin and formed by heavily pigmented spindle-shaped or dendritic melanocytes in the reticular dermis. Synonym: Jadassohn-Tieche nevus. (05 Mar 2000) |
| Franceschetti-Jadassohn syndrome | <syndrome> Reticular skin pigmentation, diminished sweating, hypodontia, and hyperkeratosis of the palms and soles; may be confused with incontinentia pigmenti but is as common in males as in females; autosomal dominant inheritance. Synonym: Franceschetti-Jadassohn syndrome. (05 Mar 2000) |
| basal cell epithelioma | <oncology, tumour> The most common form of skin cancer. A malignant growth of epidermal tissue, specifically basal cells. most common in the fair-skinned on sun-exposed areas (especially the face). (15 Nov 1997) |
| Malherbe's calcifying epithelioma | A tumour composed of cells resembling those of the hair matrix, which undergo 'mummification' and may calcify. It is a relatively uncommon tumour, which may occur at any age from infancy. The majority of patients are under 20, and females are affected more than males. The lesion is usually a solitary deep dermal or subcutaneous tumour 3-30 mm in diameter, situated in the head, neck, or upper extremity. (12 Dec 1998) |
| malignant ciliary epithelioma | <tumour> Malignant hyperplasia of ciliary epithelium with frequent involvement of the pigmented layer. Synonym: adult medulloepithelioma. (05 Mar 2000) |
| chorionic epithelioma | An obsolete term for choriocarcinoma. (05 Mar 2000) |
| multiple self-healing squamous epithelioma | <tumour> Multiple skin tumours, most frequently on the head, each resembling a well-differentiated squamous carcinoma or keratoacanthoma; individual tumours resolve spontaneously after several months, leaving deep-pitted scars with irregular crenellated borders, and are usually replaced by additional new tumours; autosomal dominant inheritance. (05 Mar 2000) |
| sebaceous epithelioma | <tumour> A benign tumour of the sebaceous gland epithelium in which small basaloid or germinative cells predominate. (05 Mar 2000) |