Biomedical subjects
Publications and source records attributed to R R Harman.
Many associations of lichenoid reactions have been described but this case appears to be a previously unreported association--with multiple myeloma. This case also demonstrates the necessity of a mucosal biopsy with adequate hematologic and serologic investigations to obtain a definitive diagnosis.
Cutaneous larva migrans is becoming more common in the U.K. with the popularity of tropical countries as holiday destinations. We describe the increasing use of a new benzimidazole derivative, albendazole, which is very effective in the treatment of cutaneous larva migrans. In contrast to thiabendazole, it is virtually free from side-effects and should, we feel, become the treatment of choice for this condition.
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We report the case of a 63-year-old Caucasian female, with reno-vascular hypertension, who developed a generalized skin eruption with lichenoid histological features, induced by nifedipine. A repeat challenge with nifedipine confirmed that it was the causative agent.
Some features of the design and implementation of NMR probes for insertion into peripheral orifices of the body are described. In particular, the possibilities of using parasitic coils without direct connections in conjunction with conventional whole body coils are examined. The use of windings around the NMR probe carrying gradient pulses as a means of eliminating the very high signals from tissue immediately adjacent to the coil windings is also evaluated. These approaches are, in practice, difficult to combine, and hence need to be viewed almost as alternative possibilities. Practical results of experimental investigations are presented using both phantoms and volunteers.
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Lichen planus of the hands and feet, although uncommon, can be very disabling with painful hypertrophic areas or ulcers, mainly of palmar and plantar surfaces. These lesions may not respond to conventional medical treatment. A case of surgical treatment with excision and split skin grafting of ulcerative lichen planus of the soles, with a fourteen year follow up, is reported. Only three other reported cases with a longer review period could be found. A second patient is described in which excision and grafting of painful, hypertrophic, ulcerative lichen planus of the hands achieved a satisfactory long term outcome. No other examples could be found in the English literature. It is suggested that surgical treatment should be considered more often and sooner in painful lichen planus of the hands and feet.
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Occupational contact dermatitis to Bronopol and Kathon CG has been identified in 3 milk recorders following the introduction of a new milk preservative. The source of exposure, sensitising potential and measures for prevention are discussed.
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Cutaneous sensation in plaques of necrobiosis lipoidica was assessed in five non-diabetic and seven diabetic patients. Eleven of the twelve showed partial or complete anaesthesia of the affected skin. These findings are important in the differential diagnosis of tuberculoid leprosy. Further studies of nerve function in cutaneous granulomas need to be carried out.