Cutaneous Metastasis of Esophageal Squamous Cell Carcinoma (ESCC)

Sridhar P 1, Nihanthy D S 2, Pallad S.R. 3, Naveen T 4 , Khaleel I 5, Govardhan6 

1Dr Sridhar P, Assistant Professor, 2Dr Nihanthy D S, Resident, 3Dr Siddanna R Pallad, Associate Professor, 4Dr Naveen T, Associate Professor, 5Dr Ibrahim Khaleel, Assistant Professor, 6Dr Govardhan, Assistant Professor; all authors are affiliated with Dept of Radiation Oncology, Kidwai Memorial Institute of Oncology, Bangalore, India.

Address for Correspondence: Dr Nihanthy D S, Resident in Radiation Oncology, Kidwai Memorial Institute of Oncology, Bangalore, India, email id: nihanthyds@gmail.com



Abstract

Introduction:  Esophageal cancer is an aggressive disease with a poor prognosis. Patients generally present at an advanced stage. The most predominant histologically subtype is squamous cell carcinoma comprising about 70% of cases. The skin is an uncommon site of metastasis, skin metastasis from esophageal cancer affects less than 1% of the cases. Metastatic spread to the skin occurs either hematogenously or via the lymphatic system and a myriad of presentations may be seen. Materials and Methods: A 30-year-old male, a known case of carcinoma esophagus post concurrent CT-RT, three months ago, presented to the OPD with complaints of burning sensation and multiple solid skin nodules, measuring about 1–3 cm in diameter over the left chest, after thorough evaluation and biopsy of the skin lesion the final diagnosis of cutaneous metastasis of metastasic esophageal squamous cell carcinoma was established. Planned on palliative RT, pt received an External beam RT of 30Gy in 10 fractions on 6 MeV electrons at a depth of 3 cm. Result: Patient is symptom free with complete response of the skin nodules. Conclusion: Cutaneous metastasis from internal malignancy is uncommon but not rare and is reported most commonly after the fourth decade of life. Skin metastasis from upper GI tract is relatively infrequent and esophageal cancer rarely metastasize cutaneousely, ESCC with diffuse and skin involvement is an indicator of highly aggressive nature of the disease. There are very few reported cases and hereby reporting a rare case treated at our Institution.

Keywords: ESCC-Esophageal Squamous Cell Carcinoma,RT- Radiotherapy,CT- Chemotherapy,GTV- Gross tumor volume, 3DCRT- Three dimensional conformal radiotherapy



Manuscript received: 10th August 2016, Reviewed: 20th August 2016
Author Corrected: 4th September 2016, Accepted for Publication: 14th September 2016

Introduction

Esophageal cancer is a highly aggressive disease with poor prognosis. Patients generally present with locally advanced disease, which has already metastasized at the time of initial diagnosis. The most predominant histologically subtype is squamous cell carcinoma comprising about 70% of cases [1].

The skin is an uncommon site of metastasis, skin metastasis from esophageal cancer affect less than 1% of cases [2,3]. Metastatic spread to the skin occurs either hematogenously or via the lymphatic system with a myriad of presentations, in the form of rapidly growing papules or nodules [4,5]. However nodules are the most common form [6,7,8].

Case report

A 30-year-old male presented with history of dysphagia for solids since 3 months and history of significant weight loss since 2 months. Oesophageogastroduodenoscopy and computerized tomography showed lower-thoracic esophageal growth with extension into Gastroesophageal junction with regional lymph node enlargement rendering the tumor inoperable. Histology showed features suggestive of squamous cell carcinoma. No extra-nodal or pulmonary metastases were noticed.

Patient was treated with concurrent CT-RT, received a biological equivalent dose of 54Gy to the GTV on linac by 3DCRT technique along with six cycles of concurrent weekly cisplatin (40mg/m2).

Patient was asymptomatic for 3 months, presented to the OPD, with complaints of burning sensation and multiple skin nodules over the left anterior chest wall since past two weeks, acute in onset and rapidly progressing to attain the present size. On examination, multiple nodules were present on the left anterior chest wall, hard in consistency, coalesced, largest measuring around 3 cm in diameter. Excisional Biopsy of the skin lesion showed metastatic squamous cell carcinoma. CT thorax showed partial response of the primary tumor and hence we arrived at the final diagnosis of cutaneous metastasis of metastasic esophageal squamous cell carcinoma.

  figure01  figure02     
Fig 1: nodular metastasis before therapy
 
figure03
Disorganised sheets of malignant cells with hyperchromatic pleomorphic nuclei, increased nucleus/cytoplam ratio, increased mitoses and bizarre malignant cells consistent with matastatic squamous cell carcinoma
 
figure04  figure05
 Fig 2: Post Palliative Radiotherapy

Patient was planned on palliative radiation of 30Gy in 10 fractions on 6 MeV electrons at a depth of 3 cm. Patient is symptom free with complete response to local palliative therapy.

Discussion

Cutaneous metastasis from internal malignancy is uncommon but not rare. Their frequency ranges between 0.7% and 10.4% of all patients with cancer. [9-14]

Cutaneous metastasis can occur anytime in the course of malignancy. Especially in an extensively metastatic disease, they may also represent failure of ongoing therapy or recurrence of neoplasm. Every cancer can cause skin metastases, but some do so more frequently than others. The most frequent primary nondermatological tumors associated with skin

Metastases include breast, lung and colorectal cancers. Skin metastasis from upper GI tract is relatively infrequent [11-16], esophageal cancer rarely metastasize cutaneousely. Most reported esophageal cancers were squamous cell carcinoma but there were some case reports of skin metastases from esophageal adenocarcinoma [17, 18].

Due to the extreme rarity of cutaneous metastasis from esophageal squamous cell carcinoma, there are only limited data in the literature regarding their incidence that is less than 1%, prognosis at this stage is quite poor and average survival with the life expectancy for all stage IV esophageal carcinoma ranges from 4 to 20 months after diagnosis [19].

Conclusion

Skin manifestations of Esophageal squamous cell carcinoma (ESCC) are extremely rare and only a small number of cases with solid skin metastasis have been reported. A case of ESCC with such diffuse and massive skin metastases, most likely indicating highly aggressive disease, although metastatic skin cancers often require no more than symptomatic therapy and tend to respond to systemic chemotherapy, local treatment like radiotherapy to  be considered at this stage mainly focuses on palliation.

Funding: Nil, Conflict of interest: None initiated
Permission from IRB: Yes

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How to cite this article?

Sridhar P, Nihanthy D S, Pallad S.R, Naveen T, Khaleel I, Govardhan. Cutaneous Metastasis of Esophageal Squamous Cell Carcinoma (ESCC).Int J Med Res Rev 2016;4(9):1632-1635.doi:10.17511/ijmrr. 2016.i09.20.