Liver hamartomas in tuberous sclerosis.

Three patients with tuberous sclerosis (TS) and hepatic hamartomas are presented. Liver lesions are uncommonly documented in TS, compared to renal angiomyolipomas. The imaging characteristics of liver hamartoma in TS may resemble those of renal angiomyolipoma, hepatic cavernous haemangiomas, metastasis or abscess.

Case report: fatal non-menstrual toxic shock in a Chinese woman.

A fatal case of non-menstrual toxic shock syndrome (TSS) is reported in a Chinese woman, which was associated with a vaginal Staphylococcus aureus infection. Cerebral haemorrhage and vasogenic white matter oedema was shown in cranial computed tomography (CT) before the terminal event.

Use of sex-linked minisatellite fragments to investigate genetic differentiation and migration of North American populations of the peregrine falcon (Falco peregrinus).

The M13 repeat detects different levels of genetic variation in falcons. First, this minisatellite probe reveals typically highly variant restriction fragments that show no apparent unequal distribution between the sexes. Secondly, the M13 repeat detects sets of fragments that are only present in DNAs from female falcons. The level of polymorphism displayed by the sex-linked fragments is greatly reduced relative to most autosomal minisatellites. In addition, the size of these fragments (in kilobase pairs) is species-specific among Mauritius kestrels (Falco punctatus) and peregrines (Falco peregrinus). Variation observed at one o of the sex-linked fragments in peregrines has proven to be useful in distinguishing a subset of the tundrius subspecies of this endangered raptor. This correlation has enabled a genetic test to be used to examine the representation of tundrius peregrines during mass migration.