clubbing was noted.General examination was unremarkable except for a 5 cm long, nontender, hyperpigmented, cord-like induration on the flexor aspect of her left forearm.Systemic examination was unremarkable.On enquiry, patient revealed a history of recurrent similar patches on both legs and arms, with spontaneous resolution within weeks over the last 3 years.There was no history suggestive of major thromboembolism in the past.No significant family history was revealed.Routine blood investigations revealed Hb 9.7 gm/dL, normal total leukocyte count (TLC) and differential leukocyte count (DLC), PC 3.51 lakhs/mm³, ESR 65 mm/1st hour.Liver function test (LFT) and kidney function test (KFT) were within normal limits (WNL), and urine examination was unremarkable.Patient's follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels were within normal range.Bleeding time and clotting time were WNL (3.1 and 6.05 minutes, respectively).S. ANA was negative.Antithrombin III and functional protein C levels were normal.Functional protein S activity was found to be decreased at 10% (determined by electromechanical clot detection method).Ultrasonography (USG) abdomen showed ectopic right kidney and was otherwise WNL.Chest X-ray (CXR) posteroanterior (PA) view was normal, with no suggestion of tuberculosis.Mantoux test was negative.
Shalini Agrawal (Sat,) studied this question.