In elementary geometry the word congruent is often used as follows. The word equal is often used in place of congruent for these objects. 1  Two line segments are congruent if they have the same length. 2  Two angles are congruent if they have the same measure.3  Two circles are congruent if they have the same diameter.ore formally, two sets of points are called congruent if, and only if, one can be transformed into the other by an isometry, i.e., a combination of rigid motions, namely a translation, a rotation, and a reflection.
Calcium deposits in soft tissue (Soft Tissue Calcification, STC) are well known phenomena in the medical world. Unlike healthy calcification that is responsible for bones and teeth, STC is associated with numerous diseases and conditions that pose serious health concerns.alcium deposits in soft tissue (Soft Tissue Calcification, STC) are well known phenomena in the medical world. Unlike healthy calcification that is responsible for bones and teeth, STC is associated with numerous diseases and conditions that pose serious health concerns.
Other causes include tumour lysis syndrome, tissue injury, rhabdomyolysis, hemolysis, Vitamin D toxicosis, hypoparathyroidism and acromegaly. Hyperphosphatemia can cause soft tissue calcification, hypernatremia, hypocalcaemia, tetany and diarrhoea.