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Case
Study#2
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Scurvy
Usually
presents with swelling, pain and discoloration of the lower
extremities where hemorrhages and ecchymoses are commonly
found in areas of frequent stress, e.g. lower extremity joints
and the soft tissue of the back and buttocks.
Frequently
evaluated for suspicion of DVT, cellulitis or rheumatic disease.
May
also initially present with gingivitis
- requires
teeth
- occurs
more frequently with pre-existing periodontal disease
- decay
is essentially secondary to loosening of the gums away from
the teeth and the loss of alveolar bone
- there
is also the contribution of hemorrhage and poor wound healing,
often associated with G.I. bleeding/Fe deficiency.
Early
clues may be found in the skin where there is enlargement
and hyperkeratosis of the hair follicles with subsequent congestion/proliferation
of blood vessels around the follicle leading to a classic
lesion of a hyperkeratotic hair follicle with a hemorrhagic
halo. Hairs may become fractured, coiled, and bent.
Platelet
function and evaluation of laboratory coagulation is usually
entirely normal in isolated vitamin C deficiency.
Seventy-five
percent of presenting patients have anemia, most often a mild
normocytic and normochromic anemia, but megaloblastic or microcytic
anemias have been reported. It is unclear as to the exact
mechanism of anemia in vitamin C deficiency. In vivo studies
of vitamin C deficiency have not been conclusive as to either
a direct inhibitory effect on erythropoiesis or inhibition
of iron absorption/metabolism.
Terminal
stages of scurvy are characterized by generalized edema, fever,
hypotension, convulsions, and eventually death.
Modern
presentations are rarely an isolated deficiency of vitamin
C. Presentations commonly include Fe and/or folate deficiency,
vitamin K deficiency, and evidence of malnutrition.
High
risk-groups include edentulous, elderly people who live alone
(more frequently men), individuals who avoid "acid"-containing
foods due to symptoms of dyspepsia or reflux esophagitis,
food fadists (often psychiatric patients), and alcoholics.
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