Dermatomyositis and chest radiography leading to the diagnosis of lung cancer and subsequent confusions in staging due to the presence of tuberculosis
- Swaroop Revannasiddaiah1,
- Manoj Kumar Gupta1,
- Madhup Rastogi1,
- Avinash Arjun Rao Kesari2,
- Rajeev Kumar Seam1,
- Manish Gupta1,
- Suneel Chauhan3,
- Irappa Madabhavi4
- 1Radiation Therapy and Oncology Department, Regional Cancer Center, Indira Gandhi Medical College, Shimla, India
- 2Radiodiagnosis Department, King Edward Memorial Hospital, GSMC, Mumbai, India
- 3Nuclear Medicine Department, Regional Cancer Centre, Indira Gandhi Medical College, Shimla, India
- 4Internal Medicine Department, Indira Gandhi Medical College, Shimla, India
- Correspondence to Dr Swaroop Revannasiddaiah,
This clinical scenario describes dermatomyositis as a presenting feature of carcinoma of the lung. However, the coincident existence of tuberculosis in the opposite lung gave rise to a false impression of contralateral lung metastasis and hence confusions with regard to staging ensued, which were clarified after further investigation confirmed a unilateral lung adenocarcinoma and contralateral tuberculosis. The patient was initiated on oral antiepidermal growth factor receptor therapy with erlotinib, as well as on multi-drug therapy for tuberculosis. This report intends to illustrate that paraneoplastic syndromes such as dermatomyositis can be the presenting feature of lung cancer, and also that the co-incident presence of carcinoma and tuberculosis can cause confusions with regard to staging and management.
Competing interests None.
Patient consent Obtained.