The workshop Multimodal Retrieval in the Medical Domain (MRMD) took place in connection with the European Conference of Information Retrieval (ECIR) in Vienna, Austria on March 29, 2015. The workshop included two invited presentations and 7 accepted scientific papers. A session on the VISCERAL (VISual Concept Extraction in RAdioLogy) retrieval benchmark, an information retrieval benchmark combining semantics with 3D images, was included into the workshop and four groups presented their results on the benchmark using the same database and query topics to really lead to comparable results. The end of the workshop featured a discussion session with the invited speakers and workshop organizers regarding what is now needed to advance large-scale multimodal medical information retrieval.