Primary hyperparathyroidism has been described previously in association wi
th malignancy, but to our knowledge has not been reported in association wi
th primary cutaneous lymphoma. We report two cases of parathyroid adenoma w
ith primary cutaneous lymphoma, the first in a 42-year-old woman with CD30-
negative cutaneous large cell lymphoma, and the second in a 67-year-old man
with mycosis fungoides and CD30-positive anaplastic large cell lymphoma.