Asymptomatic syphilitic massive necrosis of the spleen in late syphilis.

The varieties of luetic clinical variants are countless in nature. In this regard, an autopsy case of a 72-year-old homeless man who accidentally succumbed to carbon-monoxide poisoning is here presented and reviewed. The autopsy revealed the highly unusual finding of asymptomatic syphilitic necrosis of spleen followed by luetic mesaortitis, a solitary skin gumma, and syphilitic arthritis. The spleen was 8×4×3 cm in size; the capsule was completely calcified and firm, 3 to 5 mm thick. Only in the region of the hilus was a small part of preserved tissue found. After puncturing the capsule, a brown-yellowish pus-like mass was found which filled the entire space inside. When reviewing the relevant literature, this case and its finding of pan splenic necrosis accompanied by a calcified capsule seem to be unique in nature. In terms of the final diagnosis, a Treponema pallidum haemagglutination assay confirmed it to be syphilis. Since it was a late stage of the disease, it is estimated that it may have been present for more than 20 or 30 years in the deceased.