THE HAGUE — The list of German politicians accused of plagiarizing doctoral theses continues to grow, almost two years after the spectacular flameout of one of the country’s most popular politicians at the time, Defense Minister Karl Theodor zu Guttenberg.

Since Mr. Guttenberg resigned from all of his offices in March 2011, dozens of German politicians have had to give up the right to call themselves doctor. The spate of similar cases has prompted a re-examination of academia, as well as the weight a doctorate pulls in the German job market and society.

Although some top politicians, like Mr. Guttenberg, have lost their cabinet positions, many have managed to remain in the positions they held. In the most recent case, a district judge in Karlsruhe all but ended a European Parliament member’s attempt to regain her doctorate by suing her university. The politician, Silvana Koch-Mehrin, had taken Heidelberg University to court, alleging that it made procedural mistakes when it rescinded her academic badge of honor.

She had lost her doctorate in June 2011, after her thesis was found to show substantial instances of plagiarism. Though she remains in the European Parliament, the “Dr.” — once so conspicuously displayed in front of her name — is now absent from her Web site and campaign literature.