Indian Journal of Dermatology
CORRESPONDENCE
Year
: 2013  |  Volume : 58  |  Issue : 5  |  Page : 400--401

Anti SCL-70 antibody positive systemic sclerosis in a patient with lung cancer: A paraneoplastic or a purely coincidental phenomenon?


Anusree Gangopadhyay, Sumit Sen, Biswanath Naskar, Gobinda Chatterjee 
 Department of Dermatology, IPGMER and SSKM Hospital, 240, AJC Bose Road, Kolkata, India

Correspondence Address:
Anusree Gangopadhyay
Department of Dermatology, IPGMER and SSKM Hospital, 240, AJC Bose Road, Kolkata
India




How to cite this article:
Gangopadhyay A, Sen S, Naskar B, Chatterjee G. Anti SCL-70 antibody positive systemic sclerosis in a patient with lung cancer: A paraneoplastic or a purely coincidental phenomenon?.Indian J Dermatol 2013;58:400-401


How to cite this URL:
Gangopadhyay A, Sen S, Naskar B, Chatterjee G. Anti SCL-70 antibody positive systemic sclerosis in a patient with lung cancer: A paraneoplastic or a purely coincidental phenomenon?. Indian J Dermatol [serial online] 2013 [cited 2019 Dec 8 ];58:400-401
Available from: http://www.e-ijd.org/text.asp?2013/58/5/400/117326


Full Text

Sir,

The association between systemic sclerosis and malignancy is not very strong, although not rare. In this article, we describe an unusual co-existence of Anti Scl-70 positive systemic sclerosis with non small cell carcinoma of lung.

A 54 years old male patient presented to Dermatology Out-Patient Department (OPD) with vesicular eruption on left shoulder which was diagnosed as Herpes zoster. Incidentally, we discovered tightening of the skin of his face, upper chest, back and both hands [Figure 1]a. He said he had been experiencing this stiffening of skin for 6 months. There was no history of Raynaud's phenomenon. He had been diagnosed with metastatic squamous cell carcinoma of lung 3 months back and was being treated with palliative chemotherapy like Doxorubicin and Paclitaxel and radiation.{Figure 1}

On cutaneous examination, the skin over the extremities, face and trunk were hard, shiny and could not be pinched up. There were few mat-like telangiectasias on face. The oral aperture was constricted with radial furrows. The fingers were edematous, with mild flexion contracture and a smooth, shiny, tight skin without any digital pitted scarring [Figure 1]b.

A skin biopsy revealed mild thinning of the epidermis, hyalinization of the dermal collagen, sparse lymphocytic infiltrate [Figure 2]. Mucin staining was negative which ruled out scleromyxedema. There was high titer of Anti-Nuclear Antibody (ANA) (1:640) and strongly positive Anti Scl-70 antibody. His contrast CT scan of thorax showed a large mass in right lung which on CT guided Fine Needle Aspiration Cytology (FNAC) revealed squamous cell carcinoma. CT scan of abdomen showed multiple metastatic deposits in liver.{Figure 2}

Systemic sclerosis has been linked with occurrence of internal malignancy and a possible role of tumor derived connective tissue growth factors has been implicated. [1] Systemic sclerosis with history of Raynaud's phenomenon and nail fold bleeding with underlying uterine carcinoma has been reported. It was found to improve with resection of the tumor. [2] A case of melanoma developing anti Jo-1 positive paraneoplastic scleroderma has also been published. [3] There is one reported case of autoantibody positive paraneoplastic SSc in Hairy cell leukemia. [4] Association of scleroderma and malignancy has been found to occur in 3 situations-chemotherapy (like bleomycin or taxanes) or radiation induced scleroderma, lung cancer developing over preexisting interstitial fibrotic lung disease in a scleroderma patient and paraneoplastic scleroderma. Isolated cases of carcinoma of the thyroid, ovary, cervix, brain, esophagus, stomach, breast, lymphoma and leukemia with systemic sclerosis have been reported which may be coincidental. [5] The atypical presentations of paraneoplastic SSc that differentiate it from idiopathic variety are: Age at onset over 50 years, male gender (majority of SSc develop in females), sclerodactyly, progressive skin sclerosis extending to the neck and trunk, and acute onset of Raynaud's phenomenon. On the contrary, the absence of Raynaud's phenomenon with a normal capillaroscopy pattern can be another distinguishing feature of cancer induced systemic sclerosis. [6] The reported cases of malignancy superimposed on lung disease have a prolonged history of the patient suffering from systemic sclerosis. [7] In our case, the sclerodermatous changes of skin had started 3 months before the diagnosis of his lung cancer and was progressing rapidly. As the malignancy had already metastasized, we may presume that the cancer preceded the onset of dcSSc. Hence, there was a strong suspicion of paraneoplastic etiology of this connective tissue disease. Although most of the reported cases of scleroderma occurring in the context of malignancy have negative serum autoantibodies, our case had laboratory parameters indistinguishable from idiopathic dcSSc type.

An elderly male patient developing systemic sclerosis in a short span of time should warn us against a possible underlying malignancy. Paraneoplastic systemic sclerosis with anti SCL 70 positivity and underlying lung malignancy is a rare case and hence has been reported here.

References

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