Ahoy! A Modern Day Case of Scurvy Wendy Gu, MD; Mark Henderson, MD, FACP University of California, Davis Medical Center; Sacramento, CA Learning objectives Workup and clinical course • Six percent of the U.S. population greater than 6 years of age is vitamin C deficient. • transfused two units of pRBCs with appropriate rise in H/H • Classic signs: weakness, anemia, tooth loss, gum bleeding, bruises, petechiae. • started on vitamin C supplementation -one-time intramuscular dose -500 mg daily in addition to an MVI • Diagnosis is confirmed with an ascorbic acid level. One month later in hematology clinic • hemoglobin 13 g/dL • ascorbic acid level 2.2 mg/dL • Patient did not report any new hematomas or syncopal events • Thorough history-taking is key to diagnosis, especially when laboratory and imaging workup for anemia is unrevealing. Case Presentation Discussion • 56 year old Caucasian man admitted from hematology clinic after a syncopal episode • Classic clinical manifestations of scurvy are well described in ancient Egyptian, Greek, and Roman literature: -weakness, anemia, tooth loss, gum bleeding, bruises, petechiae, and vasomotor insufficiency. • regained consciousness after approximately 30 seconds -denied confusion, palpitations, or focal neurological deficits • reported non-traumatic lower extremity bruising for several months: -had been admitted to an outside hospital seven weeks earlier for presyncope and orthostatic hypotension -was found to be anemic but an extensive hematologic workup did not reveal the etiology • PMH: iron deficiency anemia and localized esophageal cancer treated with chemoradiation and esophagectomy in 2003 Iron studies: Fe 27 mcg/DL (40-190) TIBC 362 mcg/dL (260-420) Ferritin 114 ng/mL (22-415) Fe Sat 7% (11-46) ANA Negative (<1:40) Collagen/epi 54 sec (94-193) Collagen/ADP >300 sec (71-118) Factor V, VIII, IX, X, and XIII All normal activity level von Willebrand Factor Ag 235% (normal 50-150) vWF activity level B12 and folate normal Reticulocyte studies: • retic percentage 5.05 % (0.66 to 2.85) • absolute retic count 128.0 k/uL (27.9 to 121.6) 254% (normal 50-170) • No family history of bleeding disorders • Was not taking warfarin, aspirin, or NSAIDs • thrombin time normal • factor VII activity normal haptoglobin 317 mg/dL (34-200) LDH 161 IU/L (90-208) Myoglobin 109 ng/mL (20-82) CPK 64 IU/L (36-340) Ascorbic acid: 0.0 mg/dL • major cause of morbidity and death during the Great Potato Famine, American Civil War, and California gold rush • Ascorbic acid: -Required for proline and lysine hydroxylation in collagen formation -Deficiency abnormal collagen capillary fragility • Scurvy remains a relevant differential diagnosis in the workup of anemia in the first-world • Have a high clinical suspicion • HISTORY IS KEY: -Dietary habits, dentition, transportation -Check an ascorbic acid level when evaluating for other potential hematologic etiologies of anemia