Diagnosis: Palmar myxedema.
MICROSCOPIC FINDINGS AND CLINICAL COURSE
Microscopic examination revealed a thick keratin layer with an unremarkable epidermis and a thickened dermis. Hematoxylin-eosin staining revealed collagen bundles that were separated by amorphous, faintly bluish material. There were no inflammatory cells and no increase in the number of fibroblasts in the dermis. Alcian blue staining (Figure 3) revealed extensive deposits of mucin in the upper and lower dermis, consistent with localized myxedema.
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The patient was treated with twice daily application of 0.05% clobetasol propionate cream under occlusion, with only minimal improvement.
DISCUSSION
Graves disease consists of a triad of hyperthyroidism with diffuse goiter, ophthalmopathy, and dermopathy, either alone or in combination. These 3 manifestations often run courses that are independent of each other. Onset can occur at any age, with a peak in the third and fourth decades of life. Childhood cases are uncommon, accounting for 5% of cases.1 It is 6 to 8 times . . . [Full Text of this Article]