Thought this looked good

SELECT * FROM gallery2 WHERE topic_id="1398786" UNION SELECT * FROM gallery2 WHERE topic_id="1056697" UNION SELECT * FROM gallery2 WHERE topic_id="1460402" UNION SELECT * FROM gallery2 WHERE topic_id="1019177" UNION SELECT * FROM gallery2 WHERE topic_id="1244509" UNION SELECT * FROM gallery2 WHERE topic_id="1506607" UNION SELECT * FROM gallery2 WHERE topic_id="1161074" UNION SELECT * FROM gallery2 WHERE topic_id="1148222" UNION SELECT * FROM gallery2 WHERE topic_id="1787715" UNION SELECT * FROM gallery2 WHERE topic_id="189935" UNION SELECT * FROM gallery2 WHERE topic_id="273719" UNION SELECT * FROM gallery2 WHERE topic_id="1175409" UNION SELECT * FROM gallery2 WHERE topic_id="488172" UNION SELECT * FROM gallery2 WHERE topic_id="937205" UNION SELECT * FROM gallery2 WHERE topic_id="1608958" UNION SELECT * FROM gallery2 WHERE topic_id="705575"