Archives of dermatology.
Discontinued
Publisher:
American Medical Assn.
Frequency: Monthly
Country: United States
Language: English
Author(s):
American Medical Association.
Start Year:1960 - 2012
Identifiers
| ISSN: | 0003-987X (Print) 1538-3652 (Electronic) 0003-987X (Linking) |
| NLM ID: | 0372433 |
| (DNLM): | A60795000(s) |
| (OCoLC): | 01482124 |
| Coden: | ARDEAC |
| LCCN: | 21019838 |
| Classification: | W1 AR452N |
Dermal collagen degradation and phagocytosis. Occurrence in a horse with hyperextensible fragile skin. A 2-year-old female horse had large areas of hyperextensible, fragile skin that were interspersed with areas of normal skin. Affected skin tore easily and contained reduced amounts of dermal collagen. Collagen fibers were fragmented and disorganized, and in trichrome-stained sections, many fibers had abnormal red-stained centers. Electron microscopy showed that many collagen fibers had discrete foci of degradation in which the fibrils were fragmented, loosely packed, and widely separated by granular material. Collagen fibril fragments were present in secondary lysosomes in dermal fibroblasts, ...
Pilar neurocristic hamartoma: its relationship to blue nevus and equine melanotic disease. A unique pigmented lesion, judged to be a hamartoma of neural crest origin, occurring in a female patient, is compared with equine melanotic disease, The characteristic perifollicular arrangement of pigment-laden spindle cells is remarkably similar in both. Previously described patch- and plaque-like blue nevi in humans are also closely related. Light and ultrastructural features showed differentiation toward both nevus cells and Schwann cells, and it is proposed that the lesion be termed pilar neurocristic hamartoma.
Equestrian cold panniculitis in women. We describe four patients with panniculitis attributable to a combination of cold exposure and equestrian activities. All were young, healthy women who rode horses for at least two consecutive hours per day throughout the winter. Initially, several small, erythematosus, pruritic papules appeared on the superior-lateral portions of one or both thighs. During one week, the lesions progressed to indurated, red-to-violaceous,tender plaques and nodules. Studies for cryofibrinogens and cryoglobulins were negative. The histologic picture was that of a panniculitis with prominent inflammation of veins...