Unusual case presentation of lichen simplex chronicus, Hodgkin's lymphoma, and nonpuerperal hyperprolactinemia-galactorrhea.

OBJECTIVE

To report the association of nonpuerperal galactorrhea and severe pruritus with clinical stage IIB Hodgkin's lymphoma.

METHODS

We present a detailed history, findings on physical examination, laboratory data, and results of diagnostic imaging in a 25-year-old woman. A review of the related literature and speculations about possible etiologic factors for this association are provided.

RESULTS

Dermatologic evaluation of the patient revealed lichen simplex chronicus with multiple excoriations on the anterior chest area and lower extremities. High serum prolactin concentrations and easily expressible galactorrhea were present. Magnetic resonance imaging of the sella with 1-mm cuts, however, revealed a normal pituitary gland. Computed tomography showed multiple enlarged mediastinal lymph nodes, and a left supraclavicular lymph node biopsy revealed the presence of Reed-Sternberg cells and lymphocyte alterations consistent with the diagnosis of Hodgkin's lymphoma. After one cycle of chemotherapy for management of the lymphoma, parallel reductions in serum prolactin concentrations and galactorrhea were noted.

CONCLUSION

Possible causes for this syndrome include afferent mammary nerve stimulation resulting from scratching of pruritic skin and cytokine-induced hypersecretion of prolactin attributable to the lymphoma. Although uncommon, this syndrome may serve as an important harbinger of developing Hodgkin's lymphoma, and its disappearance may signify a therapeutic response.