As imaging technologies become increasingly advanced, it is possible to obtain detailed morphological information as well as functional imaging data. In some imaging technologies, the radiation dose increases with the ability to obtain better images or more detailed information. We encountered three cases of temporary bandage-shaped hair loss, which was caused by perfusion studies of the head by multi-detector row computed tomography (MDCT) for evaluation of cerebral blood flow in patients with vascular disorders. In all three patients with temporary hair loss, two angiographies of the head had been performed in the period of serial CT examinations. This suggested the possibility that radiation exposure from angiography performed in serial examinations, combined with the perfusion studies of the head with MDCT, played an important role in this temporary, bandage-shaped hair loss. Radiologists should be aware that a cumulative or multiplier effect of radiation exposure from multiple diagnostic techniques may result in hair loss and other types of radiation complications.
Nicotinamide cream is a more effective moisturizer than white petrolatum on atopic dry skin, and may be used as a treatment adjunct in atopic dermatitis.
We report a case of food-induced anaphylaxis caused by ingestion of royal jelly. After taking royal jelly and several other medicinal products, a 33-year-old Japanese male developed severe facial pruritus and erythema, followed by vertigo, numbness in his fingers, generalized pruritus, wheals, dyspnea, wheezing and impaired consciousness. He was treated with corticosteroid and fluid therapy, and his symptoms subsided. Upon allergy testing, his only positive reaction was to royal jelly. Given the clinical symptoms and the positive prick test to royal jelly, a diagnosis of anaphylaxis due to the ingestion of royal jelly was made. In this paper, we describe this case and review the relevant published work.
We report a successfully treated case of mycetoma from which an unusual Nocardia species was isolated. The isolate was identified as N. veterana by biochemical characterization and 16S ribosomal RNA gene sequencing, and it has not been previously reported as a causative agent of human mycetomas. Treatment with various antibiotics over 6 years and surgical resection failed to cure the disease. However, the combination of intravenous imipenem/cilastatin and amikacin along with oral clarithromycin and minocycline proved very effective in this case. This is the first case report of mycetoma due to N. veterana in a clinical setting.
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