When should I take a home pregnancy test? Many home pregnancy tests claim to be accurate as early as the first day of a missed period â or even before. You're likely to get more accurate results, however, if you wait until after the first day of your missed period or, better yet, one week after your missed period.
An atypical pigmented spindle-cell nevus: a small multicolored lesion showing irregular and ill-defined borders. The clinical diagnosis was melanoma in situ (Fig. 4). A typical pigmented spindle-cell nevus: a small slightly raised dark lesion with defined borders.
It is that region which initiates the development of microtubules. This region is called the centrosome. It is the centrosome and not the centriole which is responsible for making spindles because what we call 'spindle fibres' are basically microtubules. This explains why plant cells and fungi can produce spindle fibres during mitosis.