Nephrosis "trench nephrosis". Syphilitic nephrosis (trench nephrosis) is an idiopathic or early clinical and morphological form of the disease caused by wavy exudative rheumatic and syphilitic lesions of the connective tissue of the glomerular apparatus. It is found in young people aged 20 to 43 years; initial puberty does not occur. There are protein impurities in the cerebrospinal fluid, hyperemia of the optic discs and perivascular edema are common. The ECG reveals extrasystole, tachycardia, and arrhythmia. The relationship between kidney damage and skin vasculi