@article{3192553, title = "Should we be imaging lymph nodes at initial diagnosis of early-stage mycosis fungoides? Results from the PROspective Cutaneous Lymphoma International Prognostic Index (PROCLIPI) international study", author = "Hodak, E. and Sherman, S. and Papadavid, E. and Bagot, M. and Querfeld, and C. and Quaglino, P. and Prince, H. M. and Ortiz-Romero, P. L. and and Stadler, R. and Knobler, R. and Guenova, E. and Estrach, T. and and Patsatsi, A. and Leshem, Y. A. and Prague-Naveh, H. and Berti, E. and and Alberti-Violetti, S. and Cowan, R. and Jonak, C. and Nikolaou, V and and Mitteldorf, C. and Akilov, O. and Geskin, L. and Matin, R. and and Beylot-Barry, M. and Vakeva, L. and Sanches, J. A. and Servitje, O. and and Weatherhead, S. and Wobser, M. and Yoo, J. and Bayne, M. and Bates, A. and and Dunnill, G. and Marschalko, M. and Buschots, A. M. and Wehkamp, U. and and Evison, F. and Hong, E. and Amitay-Laish, I and Stranzenbach, R. and and Vermeer, M. and Willemze, R. and Kempf, W. and Cerroni, L. and and Whittaker, S. and Kim, Y. H. and Scarisbrick, J. J. and Cutaneous and Lymphoma Int Consortium", journal = "British Journal of Dermatology", year = "2021", volume = "184", number = "3", pages = "524-531", publisher = "Wiley", issn = "0007-0963, 1365-2133", doi = "10.1111/bjd.19303", abstract = "Background Early-stage mycosis fungoides (MF) includes involvement of dermatopathic lymph nodes (LNs) or early lymphomatous LNs. There is a lack of unanimity among current guidelines regarding the indications for initial staging imaging in early-stage presentation of MF in the absence of enlarged palpable LNs. Objectives To investigate how often imaging is performed in patients with early-stage presentation of MF, to assess the yield of LN imaging, and to determine what disease characteristics promoted imaging. Methods A review of clinicopathologically confirmed newly diagnosed patients with cutaneous patch/plaque (T1/T2) MF from PROspective Cutaneous Lymphoma International Prognostic Index (PROCLIPI) data. Results PROCLIPI enrolled 375 patients with stage T1/T2 MF: 304 with classical MF and 71 with folliculotropic MF. Imaging was performed in 169 patients (45%): 83 with computed tomography, 18 with positron emission tomography-computed tomography and 68 with ultrasound. Only nine of these (5%) had palpable enlarged (>= 15 mm) LNs, with an over-representation of plaques, irrespectively of the 10% body surface area cutoff that distinguishes T1 from T2. Folliculotropic MF was not more frequently imaged than classical MF. Radiologically enlarged LNs (>= 15 mm) were detected in 30 patients (18%); only seven had clinical lymphadenopathy. On multivariate analysis, plaque presentation was the sole parameter significantly associated with radiologically enlarged LNs. Imaging of only clinically enlarged LNs upstaged 4% of patients (seven of 169) to at least IIA, whereas nonselective imaging upstaged another 14% (24 of 169). LN biopsy, performed in eight of 30 patients, identified N3 (extensive lymphomatous involvement) in two and N1 (dermatopathic changes) in six. Conclusions Physical examination was a poor determinant of LN enlargement or involvement. Presence of plaques was associated with a significant increase in identification of enlarged or involved LNs in patients with early-stage presentation of MF, which may be important when deciding who to image. Imaging increases the detection rate of stage IIA MF, and identifies rare cases of extensive lymphomatous nodes, upstaging them to advanced-stage IVA2." }