[Anorectal manifestations of sexually transmissible diseases. Kaposi's sarcoma].

The proctologist is above all concerned with the known recrudescence of venereal diseases. Examples reviewed are diseases of bacterial origin (syphilis, gonorrhea, soft chancre, donovanosis and chlamydiosis), appropriate antibiotic therapy and diseases of viral origin (herpes, condyloma acuminatum). Also noted are other bacterial, viral and parasitic diseases and, indeed, cancers of which Kaposi's sarcoma is the example, even though these are not manifested anorectally.

[Apparently primary malignant lymphoma of the rectum. Presentation of a case].

With reference to a case of apparently primary lymphoma of the rectum, the authors emphasize the difficulty of diagnosis, which requires deep biopsies, and of categorizing clinical cases in view of the constantly modified classifications. Treatment modalities, whose choice is dependent upon the disease itself and the general state of health of the individual patient, are summarized.

[Syndrome of inappropriate antidiuretic hormone secretion. A report of two cases with hyponatremia and hypouricemia].

Two cases of Schwartz-Bartter syndrome are reported. Both were due to malignant anaplasic tumours of the APUD type with multiple abnormal endocrine secretion, and both were accompanied with hypouricaemia of uncertain significance. The authors believe that the association of hypernatraemia with hypouricaemia should alert clinicians to the possibility of a syndrome of inappropriate antidiuretic hormone secretion (SIADH) of malignant origin.