The workup and management of the solitary pulmonary nodule is an increasingly common and confounding clinical problem for which a uniformly accepted approach has yet to be established. Conventional radiologic literature has suggested a number of imaging characteristics of nodules such as size, cavitation, growth rate, and margin morphology to guide the physician in clinical management. More rec...

BACKGROUND Differential diagnosis of hypokalemia and adrenocorticotropic hormone (ACTH)-dependent Cushing's syndrome often presents challenging in endocrinology and requires careful clinical, biochemical, radiological, and pathological investigations. Hypokalemia is a common abnormality and systematic approach is required to avoid delays in diagnosis of important underlying causes. CASE SUMMA...

For a local field F with finite residue field, we count close vertices in the affine buildings of SLn(F ) and Spn(F ), addressing a question raised in [4]. In the case of SLn(F ), we give an explicit formula for the number ωn of vertices close to a given vertex. We establish the conjecture following Proposition 3.4 of [4] relating ωn and the number of chambers containing a given vertex. We give...

We report a case of immunoglobulin G4 (IgG4)-related lung disease presenting as a solitary pulmonary nodule with an irregular margin on computed tomography. The nodule showed a high standardized uptake value on positron emission tomography. A malignant pulmonary tumour could not be excluded. Middle lobectomy was performed. Histological analysis revealed marked lymphoplasmacytic infiltration and...