[Magnetic resonance imaging of the penis. Its normal anatomy].

OBJECTIVE: To estimate the capabilities of magnetic resonance imaging (MRI) to identify penile anatomic structures and their topographic relationships. MATERIAL AND METHODS: Penile MRI results were analyzed in 52 men of different ages who had no history, clinical, laboratory, and radiological data in favor of diseases of this organ. RESULTS: Penile imaging technology and its algorithm, including patient preparation and posi-tioning and a list of impulse sequences and their parameters, are proposed. Penile MRI and anatomy are described in detail; magnetic resonance signal characteristics of the main structural elements of the organ and its adjacent tissues on T1- and T2-weighted images are specified. The MRI morphometry results of the cavernous and spongy bodies, urethra, and penis as a whole, which agree well with the similar known literature data, are given. CONCLUSION: The investigation has provided evidence for the high informative value of the technique in recognizing the relatively small anatomic structures of the penis, which is comparable with that of the morphological study of a gross specimen of this organ, which in turn predetermines a further investigation of the capabilities of MRI to diagnose penile diseases and to estimate the quality of their treatment.

[Magnetic resonance imaging in the diagnosis of nonorganic hydatid disease].

This article evaluates MRI diagnostic value in discovering of the non-organic hydatid disease. MRI data of 21 patients, suffering from parasite pathology of liver (n = 12), liver and peritoneum cavity (n = 2), liver and retroperitoneal space (n = 2), liver and thigh's muscles (n = 1), peritoneum cavity (n = 2), retroperitoneal space (n = 1), spine and paravertebral area (n = 1) were analyzed. Based on histopathological results, features of unusually localized hydatid cysts (HC) MRI- semiotics are described in detail and compared with liver echinococcosis. MRI technique for identification of some hydatid cyst's structures is shown. The authors discuss the MRI reliability in differential diagnosis of non-organic HC and several disorders (non-parasite congenital and acquired cysts, hematoma, abscess, metastasis) of the same anatomical region. They underline some MRI advantages in GD disclosing comparing with ultrasonography and computed tomography. However, serological tests are needed for diagnosis verification. The authors also postulate the importance of clinical data being taken into account for radiological conclusion.