Downhill Esophageal Varices Associated With Central Venous Catheter-Related Thrombosis Managed With Endoscopic and Surgical Therapy

Downhill Varices and Apical Lung Cancer Without Superior Vena Cava Syndrome

A 75-year-old woman with hypertension, dyslipidemia, thalassemia trait, osteoarthritis of the knees, and hyperthyroidism presented with bloating, abdominal discomfort, and change in stool caliber underwent an esophagogastroduodenoscopy. The esophagogastroduodenoscopy revealed varices at the middle of esophagus, which were diagnosed to be downhill esophageal varices (DEVs). DEVs occur mainly from the superior vena cava (SVC) obstruction; however, in the absence of obstruction, angiogenesis and thrombosis could be the etiology. In our patient, computed tomography showed a pulmonary nodule located at periphery of the right upper lung without SVC contact nor obstruction. The nodule was later proven to be an adenocarcinoma. Thus, our patient showed the possibility that adenocarcinoma of the lung might associated with the DEV through a mechanism other than SVC obstruction. Recognition and differentiation of DEV from other benign venous blebs of the esophagus are important, and once detected, further investigation with computed tomography of the chest is recommended.

Downhill esophageal varices: a systematic review of the case reports

Aim: The etiologies, presentation, and management of downhill varices in the era of modern medicine are relatively under-explored and mostly limited to case reports or case series. Methods: Published case reports/series of patients ≥ 18 years old with proven/probable downhill esophageal varices were searched on Ovid MEDLINE and Ovid EMBASE for all published cases up to January 2021. Results: The mean age was 50.9 (standard deviation ± 17.6) years old for all downhill variceal cases. End-stage renal disease was the most common comorbidity (43.9%), followed by thyroid disease (12.2%), Behçet’s disease (9.8%), and pulmonary hypertension (7.3%). Dialysis catheters, central venous grafts, or additional catheters were additional risk factors (51.2%). Variceal bleeding presenting as hematemesis, melena, or both was the most common presenting symptom (80.5%). Conclusions: Dialysis catheter-associated superior vena cava obstruction resulted in an increased risk of downhill varices. Other causes include thyroid malignancies, pulmonary hypertension, and Behçet’s disease.

Concurrent hepatic and renal angiomyolipomas in tuberous sclerosis complex

Tuberous sclerosis complex (TSC) is a rare disease which is characterized by widespread of a variety of benign tumors in multiple organs. Renal angiomyolipomas (AMLs) are the primary cause of morbidity in TSC due to anemia, renal failure or spontaneous bleeding. In contrast, the hepatic involvement is unusual and it is infrequently described in literature.

Downhill esophageal varices: a therapeutic dilemma

Esophageal varices can cause life-threatening complications and are most often a sequela of liver disease. Although a rare cause of gastrointestinal bleeding, downhill variceal bleeding secondary to superior vena cava (SVC) obstruction should be considered in the differential diagnosis for patients with upper gastrointestinal hemorrhage. We discuss two such cases of downhill esophageal varices presenting with hematemesis in patients with end stage renal disease and no history of cirrhosis. These varices were thought to be secondary to SVC occlusion caused by complications from previous dialysis catheters. However, their difficult anatomy posed a significant challenge to the therapeutic interventions.