Towards unravelling the Rosette agent enigma: Spread and emergence of the co-invasive host-pathogen complex, Pseudorasbora parva-Sphaerothecum destruens.

The emergence of non-native fungal pathogens is a growing threat to global health, biodiversity, conservation biology, food security and the global economy. Moreover, a thorough understanding of the spread and emergence of pathogens among invasive and native host populations, as well as genetic analysis of the structure of co-invasive host populations, is crucial in terms of conservation biology and management strategies. Here we combined extensive catchment sampling, molecular detection tools and genomic signatures to i) assess the prevalence of the rosette agent Sphaerothecum destruens in invasive and native fish populations in contrasting french regions, and ii) characterize the genetic diversity and population structure of its co-invasive and asymptomatic carrier Pseudorasbora parva.

[Angiography of hepatic angiomatosis in Rendu-Osler disease. Apropos of 3 cases].

The hepatic changes in hereditary hemorrhagic telangiectasia (Rendu Osler's disease) involve the extra- and intrahepatic vessels (enlarged hepatic artery, arteriovenous fistulas and inhomogeneous perfusion) and the hepatic parenchyma (fibrosis, telangiectasic cirrhosis). From three observations with liver involvement and imaged with angiography and dynamic CT, the authors emphasize on the role of the latter for detection of these changes, mostly arteriovenous fistulas.

[Permanent-wear of gas-permeable rigid lenses: a new solution for the aphakic patient].

The authors reviews his experience during a period of six years with permanent wear gas-permeable hard contact lenses. Problems with dislocation of the lens during sleep was solved by using a diameter of 11 mm. Corneal respiration was maintained due to the oxygen permeability of the new material.

[Computed tomography examination of adrenal tumors in adults (author's transl)].

The results of computed tomography examination of adrenal tumors in 19 adults patients are reported. Diagnosis of an adenoma during Cushing's syndrome is possible, as well as detection of spread of an adrenal cortex tumor. Avascular pheochromocytoma and Conn's adenomas less than 1 cm in diameter, occurring during the course of hypertensive disease, can also be demonstrated.

[Computed tomography examination of normal adrenal glands (author's transl)].

Computed tomography was used to examine the adrenal glands of 100 normal subjects. This investigation, which is simple to conduct, and causes only slight disturbance to the subject, was able to identify the right adrenal in 92% of cases and the left gland in 95% of subjects. The morphological aspect of the normal gland is that of an inverted "Y" but the absence of one or both limbs of the "Y" can give an appearance of a comet or a triangle respectively.

[Simple orthotopic ureteroceles in children].

A simple orthotopic ureterocele is a ureterocele developed on the terminal portion of a single ureter normally implanted into the bladder. This type of ureterocele is often bilateral and is less frequently observed in children than heterotopic ureteroceles complicating total duplication (27%-73%). The authors report six such cases, review their classical radiological signs, and emphasize three unusual findings:--A simple orthotopic ureterocele complicated by the presence of stones.

[Computer tomography for the detection of bladder tumors (author's transl)].

Computer tomography examinations were conducted during pre-treatment investigations in 30 patients with histologically-confirmed bladder cancer. Comparison of anatomical and radiological findings demonstrated that the C.T.

[Primary malignant tumours of the nasopharynx : C.T. aspects (author's transl)].

In a series of 25 cases of primary malignant tumours of the nasopharynx the authors the advantages of CT which provides.--positive diagnoses,--assistance in the performance of biopsy in cases with primary malignant cervical adenopathies,--the possibility of personalising radiotherapy protocols,--valuable technique for long-term supervision.

[Computer tomography examination of renal and adrenal gland masses (author's transl)].

The results of 5 computer tomography examinations of the retroperitoneal region are discussed. Previous examinations in these patients had suggested, but could not confirm, the presence of a lesion in a particular organ. Normal retroperitoneal structures were found by computer tomography in 7 of the 51 cases.