ABSTRACT
The aetiology of the keloid scar has not been completely elucidated. Numerous hypotheses have been proposed in the past to explain the unusual characteristics of the keloid scar. While we do know that there is excessive and ongoing collagen-deposition, the exact triggering stimulus is a subject of conjecture. We present some of our photographic records of keloids and electron microscopic findings of keloid edges and reiterate the sebum hypothesis. We also attempt to explain the features of keloids in the light of the present knowledge of immunology and cell biology.
Subject(s)
Autoantigens/immunology , Keloid/etiology , Models, Biological , Sebum/immunology , Adolescent , Adult , Aged , Child , Collagen/metabolism , Female , Humans , Hypersensitivity, Delayed/etiology , Hypersensitivity, Delayed/immunology , Keloid/immunology , Keloid/pathology , Male , Microscopy, Electron , Middle Aged , Postoperative Complications/etiology , Sebaceous Glands/metabolism , Sebaceous Glands/ultrastructure , Sebum/metabolism , Skin/injuries , T-Lymphocyte Subsets/immunology , Tattooing/adverse effects , Vaccination/adverse effectsABSTRACT
We describe a case of anomalous muscle belly at Guyon's canal causing ulnar tunnel syndrome with sparing of the motor branch and hypothenar muscles.
Subject(s)
Hand Injuries/diagnostic imaging , Hand Injuries/etiology , Ulnar Nerve Compression Syndromes/diagnostic imaging , Ulnar Nerve Compression Syndromes/etiology , Ulnar Nerve/diagnostic imaging , Wounds, Nonpenetrating , Adult , Female , Hand Injuries/surgery , Humans , Muscle, Skeletal/diagnostic imaging , Muscle, Skeletal/physiopathology , Muscle, Skeletal/surgery , Radiography , Syndrome , Ulnar Nerve/physiopathology , Ulnar Nerve/surgery , Ulnar Nerve Compression Syndromes/surgeryABSTRACT
Disinfectant solutions with high concentrations of alcohol are used in many operating theatres as skin preparation. We present two cases of burns as a result of accidental ignition of the solution and list precautionary measures for the use of these solutions.
