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High-resolution G- and Q-band patterns of cat (Felis catus) prometaphase chromosomes with more than 450 numbered bands are presented. This number represents approximately twice the number of bands per haploid set exhibited by feline chromosomes at mid-metaphase. A diagrammatic representation of G-banded cat chromosomes has already been described (O’Brien and Nash, 1982); however, precise numbering of bands and landmarks, as in the human karyotype and in the karyotypes of other domestic and laboratory animals, has not yet been available for the domestic cat karyotype, except for the RBG-banded ideograms constructed by Shibasaki et al. (1987) and Rønne and Storm (1995). In this report, we propose a numbering system for the G-banded ideogram reported previously (O’Brien and Nash, 1982) and an extended ideogram at the high-resolution level (473 numbered bands) as a contribution to the future standardization of the feline karyotype.

Amniotic fluid embolism (AFE) is a rare complication of pregnancy and its mortality rate is high. There have been few reports of AFE with presence of severe coagulopathy and incoagulable bleeding, and absence of cardiopulmonary symptoms or limited cardiopulmonary symptoms, followed by massive blood loss during delivery. Such cases have been referred to as disseminated intravascular coagulopathy-type AFE, and the characteristics of this condition have been presented previously. Here we report three cases that fulfilled the diagnostic characteristics of disseminated intravascular coagulopathy-type AFE.