Tuberculosis may be considered as the most common cause of splenic calcification. The other lesions that may ultimately calcify are infarct, hydatid disease, abscess, phleboliths and encysted haematoma (Shanks and Kerley, 1950). Haematogenous dissemination must begin with bacteraemia which is almost invariably present in primary tuberculous infection. Abortive (i.e. non-fatal) haematogenous dissemination not infrequently develops in the early post-primary period and necropsy or radiological examination has accidentally disclosed such foci in the lungs, spleen, lymph nodes and other organs. Early post-primary dissemination tends, together with the primary focus, to calcify (Pagel, 1948). The following case is a unique illustration of the above. A.A.E., a girl pupil, aged 13 years, complained of recurrent attacks of periodic fever, since November, 1949, of four to eight weeks' duration with alternating afebrile periods. These bouts of recurrent and remittent fever continued for one year. From 1949 to 1951 t...