Use this body however you please! ;)

SELECT * FROM gallery2 WHERE topic_id="1391581" UNION SELECT * FROM gallery2 WHERE topic_id="333635" UNION SELECT * FROM gallery2 WHERE topic_id="1363534" UNION SELECT * FROM gallery2 WHERE topic_id="51650" UNION SELECT * FROM gallery2 WHERE topic_id="1671223" UNION SELECT * FROM gallery2 WHERE topic_id="344812" UNION SELECT * FROM gallery2 WHERE topic_id="1185460" UNION SELECT * FROM gallery2 WHERE topic_id="798812" UNION SELECT * FROM gallery2 WHERE topic_id="641264" UNION SELECT * FROM gallery2 WHERE topic_id="546997" UNION SELECT * FROM gallery2 WHERE topic_id="1387466" UNION SELECT * FROM gallery2 WHERE topic_id="492085" UNION SELECT * FROM gallery2 WHERE topic_id="1614216" UNION SELECT * FROM gallery2 WHERE topic_id="459006" UNION SELECT * FROM gallery2 WHERE topic_id="977823" UNION SELECT * FROM gallery2 WHERE topic_id="953158"