I gather you know the drill? [40]

SELECT * FROM gallery2 WHERE topic_id="55628" UNION SELECT * FROM gallery2 WHERE topic_id="992648" UNION SELECT * FROM gallery2 WHERE topic_id="223371" UNION SELECT * FROM gallery2 WHERE topic_id="670521" UNION SELECT * FROM gallery2 WHERE topic_id="657131" UNION SELECT * FROM gallery2 WHERE topic_id="1471694" UNION SELECT * FROM gallery2 WHERE topic_id="601859" UNION SELECT * FROM gallery2 WHERE topic_id="974166" UNION SELECT * FROM gallery2 WHERE topic_id="1197413" UNION SELECT * FROM gallery2 WHERE topic_id="1271642" UNION SELECT * FROM gallery2 WHERE topic_id="582296" UNION SELECT * FROM gallery2 WHERE topic_id="995788" UNION SELECT * FROM gallery2 WHERE topic_id="392422" UNION SELECT * FROM gallery2 WHERE topic_id="544153" UNION SELECT * FROM gallery2 WHERE topic_id="87091" UNION SELECT * FROM gallery2 WHERE topic_id="1272732"