ABSTRACT
The patient was found to have a calculus which obstructed the prostatic secretions. Prostatic stones can be divided into two types: primary or “endogenous” and secondary or “exogenous”. Primary calculi are those that developed from prostatic secretions. Secondary stones are composed mainly of constituents of urine. The internal structure in its simplest form was either homogenous or delicately granular with or without a central core. The corpora amylacea consist of a mucoprotein matrix that is present in an acidic sulfated form. Neutral polysaccharides are also found in the matrix. Corpora amylacea and calculi are scattered throughout the entire prostate gland but are most common in the cephalic portion of the posterior lobe and within the larger ducts and acini of the lateral lobes. Prostatic calculi may be formed by consolidation and calcification of preexisting corpora amylacea, or by direct calcification of precipitated glandular secretions.
