Since Israel1 first described actinomycosis in man in 1877 several thousand cases have been reported in the international literature.2 Majocchi3 in 1882 was the first to report a case of actinomycosis of the skin occurring in a young woman. Primary actinomycosis of the skin, however, continues to be an exceedingly rare condition. Rauber4 in 1925 collected fifty-six cases reported in the continental literature, and Klaber5 in 1934 could find only ten additional cases of primary cutaneous actinomycosis in the world literature.
Because of the rareness of actinomycosis of the skin we thought it worth while to report two cases recently observed in the wards of the Mount Sinai Hospital.
REPORT OF CASES
A man aged 66, a tailor, was first seen in the outpatient department of the surgical service on April 9, 1934. He complained of a small painless lump just below the xiphoid