def get_cytoband_coord(chrom, pos):
    """Get the cytoband coordinate for a position

        Args:
            chrom(str): A chromosome
            pos(int): The position

        Returns:
            cytoband
    """
    chrom = chrom.strip('chr')
    pos = int(pos)
    result = None
    logger.debug("Finding Cytoband for chrom:{0} pos:{1}".format(chrom, pos))
    if chrom in CYTOBANDS:
        for interval in CYTOBANDS[chrom][pos]:
            result = "{0}{1}".format(chrom, interval.data)

    return result