Spontaneous haemoperitoneum from rupture of a primary hepatic adenoma in an adult man.

Hepatic cell adenomata have been described as the rarest of benign liver tumours. Their incidence has increased with the advent of the oral contraceptive pill and they have been reported to rupture spontaneously in women. In men such a phenomenon appears to be an extreme rarity and, to our knowledge, spontaneous rupture of an uncomplicated primary hepatic adenoma, in an adult man, is previously unrecorded.