Thick enough for you??

SELECT * FROM gallery2 WHERE topic_id="1680717" UNION SELECT * FROM gallery2 WHERE topic_id="328478" UNION SELECT * FROM gallery2 WHERE topic_id="1212400" UNION SELECT * FROM gallery2 WHERE topic_id="1631588" UNION SELECT * FROM gallery2 WHERE topic_id="1616319" UNION SELECT * FROM gallery2 WHERE topic_id="717092" UNION SELECT * FROM gallery2 WHERE topic_id="1702608" UNION SELECT * FROM gallery2 WHERE topic_id="283276" UNION SELECT * FROM gallery2 WHERE topic_id="1750253" UNION SELECT * FROM gallery2 WHERE topic_id="191541" UNION SELECT * FROM gallery2 WHERE topic_id="1517789" UNION SELECT * FROM gallery2 WHERE topic_id="1234248" UNION SELECT * FROM gallery2 WHERE topic_id="208091" UNION SELECT * FROM gallery2 WHERE topic_id="1780628" UNION SELECT * FROM gallery2 WHERE topic_id="1383099" UNION SELECT * FROM gallery2 WHERE topic_id="389618"