Syndrome of inappropriate anti-diuretic hormone (SIADH) secretion is uncommon in small cell lung cancer (SCLC), but even more rare in cases of non-small cell lung cancer (NSCLC). We report a case of a 59-year-old male who presented with superior vena cava (SVC) syndrome. After further investigation, he was diagnosed with adenocarcinoma of the lung. He delayed his medical care and his condition worsened. He was diagnosed with SIADH as an incidental finding on routine lab draw. Radiotherapy was subsequently initiated, and after one week of treatment, the patient showed marked clinical improvement. In this article, we also review the current indications for radiotherapy in various lung cancers and the management of SIADH.
Granulomatous interstitial nephritis (GIN) is a rare histological diagnosis seen in less than 1% of native renal biopsies. This case report describes a 37-year-old male with chronic kidney disease (CKD) and mediastinal lymphadenopathy. The kidney biopsy showed granulomatous interstitial nephritis with mild interstitial fibrosis and variable tubular atrophy, as well as a lymph node biopsy with non-caseating granulomas. All the etiologies for non-caseating granulomas, such as infections (mycobacterial, fungal, bacterial, viral infections), hypersensitivity reactions, autoimmune disorders, and granulomatosis with polyangiitis), were initially considered and later excluded as the workup was negative. The patient was unresponsive to a trial of steroids and continued to be on dialysis. This case highlights the importance of obtaining a kidney biopsy in patients with progressive renal dysfunction without traditional risk factors such as hypertension and diabetes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.