[Ulcus vulvae acutum with cold-agglutinin-positive, Mycoplasma-caused atypical pneumonia].

An observation of a febrile ulcus vulvae acutum clinically associated with an atypical pneumonia is described. As for the laboratory findings, the cold-agglutinine-titer was high (2:1,024) and the mycoplasma KRB was also positive (1:32).