Testicular infarction secondary to protein S deficiency: a case report.
BACKGROUND
Protein S deficiency is an inherited cause of thrombophilia. We present the second reported case in the literature of a man developing testicular infarction secondary to protein S deficiency.


METHODS
A 63 year old man presented with sudden onset of pain in his left hemi-scrotum. Despite oral warfarin therapy the plasma INR was only 1.4 at presentation. Doppler ultrasound scan of the scrotum confirmed absent blood flow to the left testis with increased echogenicity. Orchidectomy was performed to remove the necrotic testis. Post-operatively the patient did well and was referred to the Regional Haemophilia and Thrombosis Centre for further management.


CONCLUSIONS
The case highlights a rare but potential complication of protein S deficiency and demonstrates the importance of adequate anticoagulation in these patients.
McKay
Damian
D
The Department of Surgery, Daisy Hill Hospital, Newry, Co Down, BT35 8DR, N, Ireland, UK. dam.mckay@virgin.net
Marron
Conor
C
Brown
Robin
R
D000925:Anticoagulants / Q000627:therapeutic use; D006801:Humans; D007238:Infarction / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D018455:Protein S Deficiency / Q000150:complications* / Q000188:drug therapy; D013737:Testis / Q000098:blood supply* / Q000000981:diagnostic imaging; D014463:Ultrasonography; D014859:Warfarin / Q000627:therapeutic use
D000925:Anticoagulants; D014859:Warfarin