Author disclosures Alejandro Ariel Gru is a paid consultant for Seattle Genetics and has an ongoing relationship with Innate Pharma. John Zic is a site principal investigator for clinical trials for products from Elora and Galderma. The other authors report no actual or potential conflicts of interest with regard to this article.
Disclaimer The opinions expressed herein are those of the authors and do not necessarily reflect those of Federal Practitioner, Frontline Medical Communications Inc., the US Government, or any of its agencies. The manufacturers did not provide equipment or other forms of material support.
Lauren Pinter-Brown. There have been many studies about cancer fatigue, and it appears that one of the cheapest and easiest modalities is for patients to walk. We often suggest that our patients go on walks, however much they can do, because that has been seen over and over again in studies of cancer fatigue to be beneficial.
John Zic. Do you have any advice for nurses that might be helping to manage patients in a cutaneous lymphoma clinic?
Marianne Tawa. As this is a rare disease, nursing encounters with patients carrying a diagnosis of CTCL in both oncology and dermatology settings may be few and far between. I recommend nurses familiarize themselves with articles published on CTCL topics found in both dermatology and oncology peer review journals. Another avenue for gaining insight and education would be through continuing education courses. Resources can also be found for nurses, patients, and caregivers through advocacy foundations such as the Cutaneous Lymphoma Foundation (www.clfoundation.org) and the Lymphoma Research Foundation (LRF@lymphma.org).
John Zic. Is there anything else that anyone would like to add to our discussion?
Lauren Pinter-Brown. One thing that we touched upon, but I was concerned that we didn’t emphasize, was the use of flow cytometry as a diagnostic tool in a patient with erythroderma. Sometimes biopsies of patients with erythroderma are not diagnostic, so clinicians need to be aware that there are other ways of diagnosing patients—nodal biopsy or flow cytometry. They should not only think of it as a staging tool but sometimes as a diagnostic tool.
Alejandro Ariel Gru. I agree. Particularly in patients who have Sézary syndrome or MF with peripheral blood involvement, sometimes the findings on the biopsy show a dissociation between how impressive the clinical presentation of the patient might be and how very few findings you might encounter on the skin biopsy. Therefore, relying on flow cytometry as a diagnostic tool is capital. Lauren, you briefly mentioned the criteria, which is looking for an abnormal CD4 to CD8 ratio of > 10%, abnormal loss of CD7, > 40%, or abnormal loss of CD26 of > 30%.
In addition, there are new markers that are now undergoing validation in the diagnosis of Sézary syndrome. One is KIR3DL2, which is a natural killer receptor that has been shown to be significantly upregulated in Sézary syndrome and appears to be both more sensitive and specific. With that also comes therapies that target the KIR3DL2 molecule.
John Zic. One of the first things we teach our dermatology residents to work up patients with erythroderma is that they shouldn’t expect the skin biopsy to help them sort out the cause of the erythroderma. As you mentioned, Lauren, the flow cytometry of peripheral blood should always be accompanied by a CBC with differential and platelets. And if the patients do have lymph nodes, consider a biopsy because sometimes that’s where you can make the firmest diagnosis of a T-cell lymphoma.
Acknowledgmentszz The participants and Federal Practitioner would like to thank Susan Thornton, CEO of the Cutaneous Lymphoma Foundation for helping to arrange this roundtable discussion.
