Case report: Isolated eyelid metastasis of ccRCC 5 years after receiving radical nephrectomy

Introduction The most common sites of clear cell renal cell carcinoma(ccRCC) metastasis are the lung, bones, liver and brain; eyelid metastasis is a rare occurrence. Case presentation We report a case of ccRCC metastasis to the left eyelid after radical nephrectomy, and remission after sunitinib treatment. Conclusions Although the probability of eyelid metastasis rate is very low, tumor metastasis to the eyelid skin is possible after radical nephrectomy. Therefore, any rash like changes on the skin during the review procedure cannot be ignored by the physician.


Introduction
Renal cell carcinoma (RCC) is the most common type of adult kidney cancer, and clear cell renal cell carcinoma (ccRCC) represents the most common renal cancer histology.About two-thirds of patients have no metastases when they are first diagnosed (1).Patients without metastatic ccRCC can be cured by nephrectomy.However, more than one third of patients with stage II-III ccRCC have a recurrence after radical nephrectomy (2), metastasis is in lung, bone, liver, brain and so on (3).Metastatic sites of clear cell renal cell carcinoma are generally characterized by good blood supply and weak autoimmune function, such as lung and bone.The skin appears to be an exempt site for ccRCC metastasis.In this paper, we report a case of ccRCC metastasis to the left eyelid 5 years after radical nephrectomy and remission after targeted therapy with sunitinib.

Case presentation
A 59-year-old woman was admitted to the hospital with the chief complaint of a 2-month left eyelid mass with pain.Physical examination revealed a mass on to the left eyelid.5 years ago, the patient accidentally discovered a mass on the right side of his abdomen.She had no symptoms of hematuria, frequent urination, or painful urination, nor was she accompanied by dysuria or low back pain.The patient had undergone laparoscopic radical nephrectomy of ccRCC in September 2018, and the TNM stage was T2N0M0.Pathological diagnosis: clear cell renal cell carcinoma, invasion of the renal capsule, WHO/ISUP grade III, no cancer cells found in the ureteral resection margin.Considering the patient's medical history, we thought that the eyelid mass might be the result of ccRCC metastasis.MRI examination suggested the possibility of metastatic tumor (Figure 1A).After ruling out the remaining possibilities, we recommended that the patient undergo eyelid mass resection to remove the metastatic tumor.However, the patient and her family refused operation and biopsy.The patient decided not to use cabozantinib due to financial difficulties, we jointly decided to use sunitinib for antineoplastic therapy.She was medically treated after signing an informed consent form.After 1 months of treatment, the mass was significantly decreased compared with before (Figures 1B, C), and the pain disappeared.

Discussion
This case of eyelid metastasis 5 years after radical nephrectomy without accompanying metastasis in other locations proved that RCC can have unusual sites of metastasis.So far, there are few cases of ccRCC metastasis to the eyelid reported worldwide.In most cases, eyelid metastases usually occur later in the disease course as a manifestation of systemic metastatic cancer, and sometimes may be the first manifestation when the origin of the tumor is unknown (4).It has been reported that patients with RCC with isolated eyelid metastasis can obtain good prognosis after undergoing simultaneous resection of the primary and metastatic tumors.Nima Mikail et al. reported that simultaneous resection of the primary RCC and eyelid metastases did not result in tumor progression during a follow-up period of 2 years (5).
For metastatic ccRCC, targeted therapy alone or combined with immunotherapy has achieved efficacy and improved the overall survival time of patients (6).However, there is still a lack of consensus on the routine adjuvant therapy for patients with isolated eyelid metastasis after metastasis resection.In some reports, patients with eyelid metastasis were treated with resection, radiotherapy or interferon therapy, but some had poor prognosis (7,8).According to some reports, the patient's symptoms were relieved and the patient's life quality was greatly improved after the use of sunitinib (9,10).
Although eyelid metastasis from ccRCC is rare, cases of skin metastases have been reported.Our study reviewed the literature on skin metastases of renal cell carcinoma (Table 1).Therefore, postoperative patients with ccRCC should be regularly reexamined with chest CT, liver, gallbladder, pancreas, spleen and kidney color Doppler ultrasound.In addition, skin rashes or nodules on the surface of the skin, especially painless lesions should be dynamically monitored to early find metastasis.Some scholars have pointed out that RCC-Ma, a ccRCC marker, has specificity for ccRCC skin metastasis, which is also worthy of reference in our subsequent research and application (19).

A B C
The change of ccRCC metastasis on the left eyelid.

Conclusion
After radical nephrectomy for ccRCC, there is possibility of metastasis to the eyelid.In the follow-up process after surgery, some lesions or nodules of the body epidermis should not be ignored.
(A) MRI image of the mass on the left eyelid.(B) A painful mass on the left eyelid.(C) The mass was disappeared after 1 months of sunitinib treatment.Yin et al. 10.3389/fonc.2024.1321919Frontiers in Oncology frontiersin.org