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Radiation Oncology Journal > Volume 36(2); 2018 > Article
Jang, Kim, Kim, Kang, and Ye: Clinical outcomes and prognostic factors in patients with mycosis fungoides who underwent radiation therapy in a single institution



We aimed to evaluate clinical outcomes including progression-free survival (PFS), overall survival (OS), partial response, and complete response in patients who underwent radiation therapy (RT) for mycosis fungoides (MF). Also, we sought to find prognostic factors for clinical outcomes.

Materials and Methods

Total 19 patients confirmed with MF between 1999–2015 were retrospectively reviewed. Clinical and treatment characteristics, clinical outcomes, and and toxicities were analyzed.


Eleven patients were treated with total skin electron beam radiotherapy (TSEBT) and 8 patients with involved field radiation therapy (IFRT) with median dose of 30 Gy, respectively. The median time interval from diagnosis to RT was 2.6 months (range, 0.4 to 87.3 months). The overall response rate was 100%; 11 patients (57.9%) had a complete response and 8 patients (42.1%) a partial response. The presence of positive lymph node at the time of consultation of RT was associated with lower OS (p = 0.043). In multivariate analysis, PFS was significantly lower for patients with increased previous therapies experienced following RT (p = 0.019) and for patients showing PR during RT (p = 0.044). There were no reported grade 3 or more skin toxicities related with RT.


Both IFRT and TSEBT are effective treatment for MF patients. Patients with short disease course before RT or complete response during RT are expected to have longer PFS. Positive lymph node status at the initiation of RT was associated woth poor OS, suggesting other treatment modalities such as low-dose RT for patients with low life-expectancy.


Mycosis fungoides (MF) is the most common type of non-Hodgkin T-cell lymphoma with major presentation in skin. It accounts for only about 4% of all cases of non-Hodgkin lymphoma. Median survival ranges from less than 11 months to greater than 24 years according to clinical stage [1,2]. Clinical stage is based on the TNMB classification indicating the involvement of skin (T), lymph nodes (N), viscera (M), and blood (B) stage [3], respectively. This staging system is based on the International Society for Cutaneous Lymphomas (ISCL)/European Organization for Research and Treatment of Cancer (EORTC) revised staging system.
For most MF patients involving the limited percent body surface area, involved field radiation therapy (IFRT) is suggested. Since MF is sensitive to radiation therapy (RT), ionizing radiation is effective treatment modality for localized and early stage MF [4,5]. In case of unilesional MF tumors, IFRT with the doses as low as 8 Gy can be delivered, achieving long-term local control [6]. Localized RT have shown overall response (OR) rate of 100% and complete response (CR) rate of more than 90% [7]. On the other hand, when lesions are widespread in whole body or resistant to previous therapies, total skin electron beam radiotherapy (TSEBT) can be considered. Conventional doses of TSEBT are ranges from 30 to 36 Gy, showing good CR rate (95%–100%) [8,9]. Also, TSEBT can provide palliative effect to patients with advanced MF [10].
Most MF studies have been performed mainly in Western countries. In contrast, there are few studies reporting clinical pattern and outcomes of MF in Asia. This is probably due to the high incidence of cutaneous natural killer/T-cell lymphomas rather than MF. Thus, in this retrospective study, we aimed to analyze clinical responses, outcomes and toxicities of TSEBT or IFRT in patients with advanced or refractory disease of MF. Additionally, progression-free survival (PFS) and overall survival (OS) rates were estimated.

Materials and Methods

1. Patients

A total 19 patients, who were pathologically confirmed with MF and received RT in Seoul National University Hospital from July 1999 to December 2015, were collected and reviewed. Baseline patient, tumor characteristics, adverse effects, responses during treatment, and treatment outcomes including PFS and OS were reviewed. Since patients who had visceral organ involvement or had significant blood involvement were excluded in the present study, we could only identify T and N stage at the time of consultation for RT among the TNMB staging components. This study is approved by Institutional Review Board of Seoul National University Hospital (No. H-1708-063-877).

2. Radiation therapy technique

For TSEBT, a modified Stanford technique was used to deliver TSEBT with doses ranged from 20 to 36 Gy (median, 30 Gy) in median 20 fractions (range, 10 to 36 fractions). Fraction size was ranged from 1.0 to 2.0 Gy, and one fraction consisting of all 6 positions and 12 fields were treated over 2 days. Thus, in each RT session, radiation was delivered to 6 positions and 3 fields. After 2 consecutive days of RT session, 1 day was rested resulting in four RT sessions in a week with resting on Wednesday. Six MeV or 9 MeV electron beam which field size was 34 cm × 34 cm was used to treat three anterior (anterior-posterior [AP], left anterior oblique [LAO], and right anterior oblique [RAO]) and three posterior (posterior-anterior [PA], left posterior oblique [LPO], and right posterior oblique [RPO]) treatment fields. The spoiler, a home-made acrylic plate of 106 cm × 205 cm × 1 cm, was placed 350 cm distant from the isocenter and positioned 30 cm from the skin. Gantry was adjusted with angle of 90°±18° in order to obtain the dual field that is perpendicular to the treatment plane. During RT, patients should be stand in an upright position without movement, and they are placed on the wooden platform of 20 cm height to reduce scatter from the floor. Based on in vivo dosimetry measurement, all patients who underwent TSEBT (n = 11) should have been undertaken additional boost RT in order to compensate shadowed body region including scalp, palm, sole, axillary or to control a large lesion which were not dramatically responding during planned treatment session. Boost doses were ranged from 5 to 9 Gy depending on radiation oncologist’s discretion. Typically, 6 MeV electron beam was used to compensate those shadowed areas with 1 cm of bolus to deliver 90% of the prescribed dose in open-field.
For IFRT, either one of electron beam (6 MeV or 9 MeV) or photon beam (6 MV or 10 MV) were used to deliver doses ranged from 18 to 45 Gy (median, 36 Gy) with 6–25 fractions. IFRT was delivered to skin lesions with a margin of at least 1.5 cm of normal skin. In IFRT group, one patient was treated with combination with both electron and photon beam.

3. Evaluation of response and toxicities

We reviewed and evaluated the response using Physician’s Global Assessment (PGA) method which used in the T-cell lymphoma study [11]. During TSEBT or IFRT, the response was evaluated weekly. CR was defined as complete regression of visible skin lesions, and partial response (PR) as 50%–99% clearance of skin disease from baseline without new tumor. Progression was defined as disease recurrence within radiation field, in regional lymph nodes, or distant metastasis. Acute toxicities such as skin reaction, edema, or blisters during RT sessions were reviewed according to Common Terminology Criteria for Adverse Events version 4.0.

4. Statistics

Patient and tumor characteristics according to RT responses were compared using chi-square test. PFS was calculated from the initiation of RT to disease progression including locoregional recurrence, distant metastasis or death. OS was defined as time interval from diagnosis to last follow-up or death. Survival curves for PFS and OS were depicted using Kaplan-Meier methods, and log-rank tests were performed to compare PFS and OS rates between groups. Prognostic factors were explored using univariate and multivariate Cox proportional-hazards regression. Spearman rank correlation coefficient (Spearman rho) was estimated to investigate the relationship between prescription doses and the treatment year. Logistic regression analysis was performed to examine the association between RT doses and responses. All statistical analyses were performed with STATA software version 14 (StataCorp, College Station, TX, USA).


1. Patient and treatment characteristics

Eleven males and eight females were treated with TSEBT or IFRT. Of 19 patients, 11 patients underwent TSEBT and 8 patients did IFRT. The median follow-up was 50.1 months (range, 8.7 to 179.8 months), and median age was 59 years (range, 35 to 75 years). The median time interval between diagnosis to RT was 2.6 months (range, 0.4 to 87.3 months). At the time of consultation for RT, 3 patients had stage IB, 1 IIA, 12 IIB, and 3 IIIA of disease, and 6 patients (31.6%) had clinically abnormal palpable or detected by computed tomography nodes (Table 1). Among patients with IFRT, two patients showed lymph node positive. When one patient was planning to undergo IFRT to right eyelid lesion, he incidentally found a palpable lymph node involved with MF in right neck level II. Another patient had abdomen wall mass with right inguinal palpable lymphadenopathy. Of 19 patients, 12 patients (63%) had undergone previous therapies with a median 1 therapy (range, 0 to 4 therapies) including systemic chemotherapy, oral retinoid, or UV-B treatment following RT. Only one patient had terminated TSEBT treatment before boost RT due to interim progression to visceral organ. Followed by completion of RT, 5 patients received adjuvant therapy including systemic chemotherapy (n = 1), photodynamic therapy (n = 1), UV-B (n = 2), and methotrexate (n = 1). Twelve patients received salvage treatment due to disease progression, and 3 of them underwent re-RT (Table 2).

2. Response and clinical outcome

With the median time to evaluation of 72 days (range, 15 to 134 days), all patients showed OR followed by RT; 11 patients (57.9%) showed CR and 8 patients (42.1%) PR. Patient and tumor characteristics stratified by RT responses are shown in Table 1. Patients with ≤2 months of median time to RT had a tendency to achieve a CR rather than PR (54.5% vs. 12.5%; p = 0.061). There was a trend for more retreatment after RT with patients showing PR (87.5 % vs. 45.4%; p = 0.061). There were no significant differences in RT responses between age groups (p = 0.096), gender (p = 0.260), initial stages (p = 0.071), lymph node status (p = 0.636), the receipt of previous therapies (p = 0.361), the number of previous therapies (p = 0.599), types of RT (p = 0.198), radiation doses (p = 0.845), and the receipt of adjuvant treatment (p = 0.912).
In case of TSEBT, we defined progression as recurrence within the radiation field or distant metastasis. Of 10 patients who received TSEBT, 7 patients experienced recurrence of skin lesion in body, and 3 patients did distant metastasis such as sternum or diffuse lymph node involvement. On the other hand, 2 patients who had received IFRT reported distant metastasis as a disease progression. They all experienced recurrence of another skin lesion except where IFRT was performed. There were no cases of recurrence in regional node.
The overall median PFS was 13.6 months, and the median PFS rate was 46%. PFS rate were not significantly different when patients had been treated with IFRT compared with TSEBT (p = 0.085) (Fig. 1A). In univariate analysis, the increasing number of previous therapy (hazard ratio [HR] = 2.30; 95% confidence interval [CI], 1.17–4.50; p = 0.015) and PR (HR = 3.63; 95% CI, 1.11–11.82; p = 0.032) were associated with the increased risk of disease progression (Table 3). A waterfall plot in Fig. 1B demonstrates PFS for all patients according to RT responses. The majority of patients with CR had PFS more than 13.6 months that is the median PFS. Fig. 1C and 1D shows the Kaplan-Meier curves for PFS according to RT responses and the number of previous therapies, respectively. Multivariate analysis stratified by RT modalities (TSEBT vs. IFRT) demonstrated that increasing number of previous therapies (p = 0.019) and partial response (p = 0.044) were remained as an independent negative prognostic factor for OS (Table 4).
For all patients, the median OS rate was 69.1%. There was no significant difference in OS rate between the group treated with IFRT and the one with TSEBT (p = 0.6804) (Fig. 2A). OS was significantly different between groups that had or had not clinically positive lymph nodes at the time of consultation of RT (log rank test, p = 0.043) (Fig. 2B) although it was marginally associated with the detrimental effect on survival (HR = 4.88, 95% CI, 0.89–26.74; p = 0.068) in Cox proportional-hazard model. Age, gender, the number of previous therapies, radiation doses, RT response, T stage, the administration of adjuvant treatment, time interval between diagnosis and RT, the receipt of treatment had no impact on OS.
We next investigated the trend of prescription dose and the dose-response relationship in our institution. As shown in Fig. 3A, the trend using lower doses for TSEBT over time was observed albeit the most commonly prescribed doses were 20 Gy (Spearman rho = -0.89, p < 0.001). However, we found that there was no significant association between RT responses and RT doses (odds ratio = 0.76, p = 0.052). In addition, we examined the effect of various cut-off doses, such as 20 Gy or 30 Gy, on RT responses, but found no significant relevance (data not shown). Patients showing complete response following TSEBT were more found in the lower doses (≤30 Gy) than the higher doses (≥32 Gy) as shown in Fig. 3B.

3. Toxicities

Toxicities were recorded during RT and listed in Table 5. The most common acute adverse effect during RT was grade 1 dry desquamation (5 patients, 26.3%). Swelling, blisters, itching of skin were acute common side effects of RT. There were no reported grade 3 or more toxicities related to RT.

Discussion and Conclusion

We showed that the number of previous therapies and RT responses were significant prognostic factor for PFS. In terms of OS, clinically positive lymph node status before RT were found to be important prognostic factor. Kim et al. [12] reported that age, T classification, and the presence of extracutaneous disease were associated with survival. Particularly, advanced T classification was found to be related with a greater risk of progression. Another study [13] addressed that advanced T stage, the presence of tumor clone in peripheral blood, folliculotropic MF were associated with worsened survival and progression. However, our clinical data could not identify that the T stage correlates with PFS or OS. This might be attributed to the possibility that accurate initial T stage information could not be acquired given that patients had already been in an advanced stage after failure of other treatments before RT. Nevertheless, we found the link between RT responses and the risk of progression, between the number of previous therapies followed by RT and disease progression, and between the presence of positive lymph node and OS.
For TSEBT, generally OR rate is nearly 100% and CR rate is 40%–98% [4,14] depending on extent of MF involvement, which is consistent with our results showing 45% of CR rate and 100% of OR rate. For IFRT, previous studies reported that MF patients with stage IA, which accounts for less than 5% of MF, was effectively managed with IFRT showing 95%–100% of CR rate [15]. Aligned with this, patients underwent IFRT in the present study demonstrated 75% of CR rate.
Stratified by stage, there exists various therapies ranged from skin-directed therapy such as topical corticosteroids, retinoids, local radiation, or phototherapy to systemic therapies such as TSEBT or chemotherapy. However, well-designed prospective phase III clinical trials comparing therapies for clinical outcomes are lacking. Nevertheless, most guidelines [16-18] recommend skin-directed therapy for the limited extent of disease and a more aggressive therapy if disease progresses toward the systemic or refractory extent. For this reason, patients often had experienced multiple other treatments followed by RT. Elsayad et al. [19] reported that all patients (n = 45) before TSEBT had been administered with a median 5 therapies (range, 1 to 8 therapies). Several studies for IFRT treating cutaneous T-cell lymphoma were reviewed [6] that previous therapies accounted for 46%–100% of patients who would undergo RT. We found that the number of previous therapies was the prognostic factor for disease progression, though Elsayad et al. [19] addressed that it had no significant impact on clinical outcomes. However, it is hard to compare directly between this previous study and our current study because the previous study aimed to compare efficacy of conventional versus low-dose TSEBT regimen.
The increased number of previous therapies before RT indicates long disease course and acquiring treatment resistance from previous failures. Refractory MF and capability of progression to systemic MF may be related with innate or adaptive immune system during disease course. In fact, allogeneic hematopoietic stem cell transplantation [20] or immune check point inhibitor [21] is considered as effective treatment for refractory or relapsed MF. In particular, a patient with refractory cutaneous T-cell lymphoma had a chimeric cytotoxic T lymphocyte antigen (CTLA4)-CD28 fusion, and the blockade of this chimeric fusion using ipilimumab showed marked response without toxicities [22,23]. Nevertheless, to date, TSEBT is effective and palliative treatment with minimal systemic toxicity, and excellent local control can be acquired by IFRT [24].
Although we observed acceptable toxicities of less than grade 3 skin adverse effects in TSEBT, another study of a large number of patients [25] reported the experiences of grade 3 skin toxicities. Given the palliative intent of RT and dose-dependent skin toxicities, low-dose TSEBT has been suggested, considering risk versus benefit ratio of RT. A European study [26] reported that the very low-dose as much as 4 Gy demonstrated only 2.7 months of response duration with a response rate of 88 percent. However, TSEBT with lower doses range of 10 to <20 Gy resulted in comparable OR rate and PFS compared with standard dose [27]. A pooled analysis [28] from 3 phase II trials of 33 patient with stage IB to IIIA MF addressed that OR and CR rates of 12-Gy TSEBT were 88% and 27%, respectively. Most common toxicity was grade 1 dermatitis, and alopecia was temporary which is often irreversible in the 36-Gy dose. Also, low-dose TSEBT gives room for pretreatment and combination with other treatment as well as short duration of treatment. However, as response duration is relatively short, low-dose TSEBT should be used selectively. In this respect, patients with node-positive in the present study may be candidates for low-dose TSEBT because it can provide patients expected for lower OS with comparable symptom relief but much less toxicities compared to conventional TSEBT. In current study, the decreasing trend in doses of TSEBT over the treatment year was observed. Also, patients showing partial response were more found in the group receiving relatively higher doses. However, this should not be interpreted as the causal relationship. Doses were prescribed under radiation oncologist's consideration based on the extent of skin lesion or symptom. The wider extent or severe lesion that were likely to show the PR, the higher doses were prescribed. Further studies are needed to elucidate which subgroup would benefit with low-dose TSEBT.
There are several limitations in the present study. First, this is the retrospective study with small number of patient in a single institution. Second, when evaluating staging, TNMB staging was not strictly applied for patients. Given that most MF patients revisit the clinics of the radiation oncology to receive re-RT several times during the rest of their life, a consistent form to evaluate acute or late toxicities is needed. Third, we pooled IFRT and TSEBT patients and analyzed clinical outcomes because the number of patient in each group is small.
In conclusion, TSEBT and IFRT provide excellent response rate with patients with MF. The number of previous therapies representing duration of disease course and RT responses were associated with PFS. Since patients with positive lymph node status were related with worsened OS, low-dose TSEBT could be considerable option for them.


Conflict of Interest

No potential conflict of interest relevant to this article was reported.

Fig. 1.
Kaplan-Meier curves of progression-free survival (PFS) rate for total patients treated with RT (A), for groups stratified by RT responses (C) and by the number of previous therapies (D). Waterfall plot for PFS according to RT responses were depicted in (B). RT, radiation therapy; IFRT, involved field radiation therapy; TSEBT, total skin electron beam radiotherapy. P-values were estimated by log-rank test.
Fig. 2.
Kaplan-Meier curves of overall survival rate for total patients underwent radiation therapy (RT) (A) and for groups stratified by the presence of lymph node at the time of consultation of RT. IFRT, involved field radiation therapy; TSEBT, total skin electron beam radiotherapy. P-values were estimated by log-rank test.
Fig. 3.
(A) Graph showing correlation between treatment year and prescribed total skin electron beam radiotherapy (TSEBT) doses. Spearman rank correlation coefficient (Spearman rho) and its p-value are presented. (B) The bar graph showing the proportion of responses to TSEBT doses.
Table 1.
Patient and treatment characteristics stratified by RT responses
Characteristic PR (n = 8) CR (n = 11) Total (n = 19) p-valuea)
Age (yr)
 ≤60 6 (75.0) 4 (36.4) 10 (52.6) 0.096
 >60 2 (25.0) 7 (63.6) 9 (47.4)
Gender 0.260
 Female 5 (62.5) 4 (36.4) 8 (42.1)
 Male 3 (37.5) 7 (63.6) 11 (57.9)
Stage at diagnosis 0.071
 IB 2 (25.0) 1 (9.1) 3 (15.8)
 IIA 0 (0) 1 (9.1) 1 (5.3)
 IIB 3 (37.5) 9 (81.8) 12 (63.2)
 IIIA 3 (37.5) 0 (0) 3 (15.8)
Lymph node status 0.636
 Clinically not detected 5 (62.5) 8 (72.7) 13 (68.4)
 Clinically detected 3 (37.5) 3 (27.3) 6 (31.6)
Previous treatment 0.361
 No 2 (25.0) 5 (45.5) 7 (36.8)
 Yes 6 (75.0) 6 (54.5) 12 (63.2)
Number of previous therapies 0.599
 0–1 6 (75.0) 7 (63.6) 13 (68.4)
 2–3 2 (25.0) 4 (36.4) 6 (31.6)
Time interval between diagnosis and RT (mo) 0.061
 ≤2 1 (12.5) 6 (54.5) 7 (36.8)
 >2 7 (87.5) 5 (45.5) 12 (63.2)
Type of RT 0.198
 IFRT 2 (25.0) 6 (54.5) 8 (42.1)
 TSEBT 6 (75.0) 5 (45.5) 11 (57.9)
RT dose (Gy) 0.845
 ≤30 4 (50.0) 6 (54.5) 10 (52.6)
 >30 4 (50.0) 5 (45.5) 9 (47.4)
Adjuvant treatment 0.912
 Administered 6 (75.0) 8 (72.7) 14 (73.7)
 Not administered 2 (25.0) 3 (27.3) 5 (26.3)
Retreatment following RT 0.061
 No 1 (12.5) 6 (54.5) 7 (36.8)
 Yes 7 (87.5) 5 (45.5) 12 (63.2)
Clinical T stage 0.071
 T1 0 (0) 1 (9.1) 1 (5.2)
 T2 2 (25.0) 1 (9.1) 3 (15.8)
 T3 3 (37.5) 9 (81.8) 12 (63.2)
 T4 3 (37.5) 0 (0) 3 (15.8)

Values are presented as number (%).

PR, partial response; CR, complete response; RT, radiation therapy; IFRT, involve field radiation therapy; TSEBT, total skin electron beam radiotherapy.

a) p-value was estimated using chi-square test.

Table 2.
Previous, adjuvant, and salvage therapies of patients treated with RT
No. of cases
Previous therapies
 Systemic chemotherapy 5
 Oral retinoid 4
 UV-B 5
 MTX 3
 Topical carmustine 2
 Photodynamic therapy 2
 Interferon 1
 Topical steroid 1
Adjuvant therapies
 Systemic chemotherapy 1
 Photodynamic therapy 1
 UV-B 2
 MTX 1
Salvage therapies
 Systemic chemotherapy 5
 Re-RT 3
 MTX 2
 Photodynamic therapy 2
 UV-B 3

RT, radiation therapy; UV-B, ultraviolet-B; PUVA, psoralen plus ultraviolet A; MTX, methotrexate.

Table 3.
Univariate analysis for progression-free survival and overall survival
Progression-free survival
Overall survival
HR 95% CI p-valuea) HR 95% CI p-valuea)
Age (yr)
 ≤60 1.00 1.00
 >60 1.01 0.32–3.20 0.981 0.70 0.17–2.81 0.610
 Female 1.00 1.00
 Male 1.01 0.32–3.21 0.981 0.70 0.17–2.81 0.610
Previous treatment
 No 1.00 1.00
 Yes 2.53 0.68–9.50 0.168 0.91 0.21–3.85 0.894
Number of previous therapies
 0–1 1.00 1.00
 2–3 3.65 1.13–11.75 0.030 1.29 0.28–5.90 0.744
 0–3, incremental 2.30 1.17–4.50 0.015 1.20 0.60–2.41 0.613
Median time to RT (mo)
 ≤2 1.00 1.00
 >2 1.72 0.46–6.39 0.420 1.28 0.23–7.06 0.781
 Incremental 1.01 0.99–1.03 0.479 1.01 0.99–1.03 0.479
Stage at diagnosis
 IB–IIIA, incremental 1.01 0.47–2.14 0.986 1.55 0.67–3.58 0.309
T stage
 T1–T4, incremental 1.79 0.62–5.14 0.280 2.42 0.72–8.12 0.154
Lymph node status
 Clinically negative 1.00 1.00
 Clinically positive 2.47 0.77–7.93 0.129 4.88 0.89–26.74 0.068
Type of RT
 IFRT 1.00 1.00
 TSEBT 3.09 0.81–11.85 0.100 1.35 0.32–5.73 0.682
RT dose (Gy)
 ≤30 1.00 1.00
 >30 0.69 0.22–2.22 0.540 1.17 0.27–5.04 0.830
 CR 1.00 1.00
 PR 3.63 1.11–11.82 0.032 2.78 0.64–12.16 0.174
Adjuvant treatment
 Not administered 1.00 1.00
 Administered 0.95 0.26–3.50 0.934 2.87 0.46–17.82 0.259

HR, hazard ratio; CI, confidence interval; RT, radiation therapy; IFRT, involved field radiation therapy; TSEBT, total skin electron beam radiotherapy; CR, complete response; PR, partial response.

a) p-value was estimated using Cox hazard-proportional regression.

Table 4.
Multivariate analysis for progression-free survival, stratified by IFRT/TSEBT
Progression-free survival
HR 95% CI p-valuea)
Number of previous therapies
 0 to 3 incremental 2.32 1.15 – 4.69 0.019
 CR 1.00
 PR 3.47 1.04 – 11.58 0.044

IFRT, involved field radiation therapy; TSEBT, total skin electron beam radiotherapy; PR, partial response; CR, complete response; HR, hazard ratio; CI, confidence interval.

a) p-value was estimated using Cox hazard-proportional regression.

Table 5.
Toxicities during or following IFRT/TSEBT (n = 19)
Grade 1 Grade 2 Total
Nausea 0 (0) 1 (0.5) 1 (0.5)
Swelling 0 (0) 3 (15.8) 3 (15.8)
Blisters 1 (0.5) 2 (10.5) 3 (15.8)
Itching 1 (0.5) 2 (10.5) 3 (15.8)
Dry desquamation 5 (26.3) 0 (0) 5 (26.3)
Erythema 0 (0) 1 (0.5) 1 (0.5)

Values are presented as number of patients (%).

IFRT, involved field radiation therapy; TSEBT, total skin electron beam radiotherapy.


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