Catamenial pneumothorax refers to a spontaneous pneumothorax that occurs in a woman associated with menstruation.


Catamenial = from the Greek katamenia = menses, monthly flow


Clinical features:

(1) female gender, of child-bearing age

(2) occurrence of a spontaneous pneumothorax

(3) associated with menstruation (occurs within 48-72 hours of onset)

(4) exclusion of other causes


The condition may be recurrent. Prevention of future episodes may involve:

(1) suppression of ovulation with oral contraception

(2) surgical menopause with bilateral oophorectomy

(3) bilateral pleurodesis


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