Image of the quarter: Placental site trophoblastic tumour – a rare cause of recurrent spontaneous pneumothoraces and conjunctival metastasis

Spontaneously  occurring  primary  pneumothorax  in  the  young  is uncommon but well documented as a complication of primary or secondary lung malignancy. We report the case of a 24-year-old female patient with placental site trophoblastic tumour presenting as recurrent pneumothorax, despite initial surgery and chemotherapy. Later, despite further chemotherapy, she developed conjunctival metastasis. To  the  best  of  our  knowledge,  this  is  the  first  case  of  a  placental  site trophoblastic  tumour  metastasising  to  the  conjunctiva  to  be  reported  in  the literature. Clinicians should keep in mind the possibility of pneumothorax due to lung metastasis when no obvious primary lung disorder is apparent.