Dissociation as probable origin of mosaic 45,XY,t(15;21)/46,XY,i(21q).

Malacoplakia of probable retroperitoneal origin.

A case of extravesical malacoplakia, the first case in Japan, is described in detail. The patient was a 61-year-old woman with a right flank mass. Radiologically, the mass was thought to be of the renal origin. Surgically, however, the tumor was found attached not only to the cortical surface but extended to the retroperitoneum and psoas muscle. Pathological examination confirmed the lesion to ...

Female adnexal tumor of probable Wolffian origin.

Female adnexal tumor of probable Wolffian origin (FATWO) is a rare neoplasm arising from the remnants of the mesonephric duct. We report here a case of FATWO in a 70-year-old woman arising from the broad ligament and confirmed on immunohistochemistry. Most of these tumors behave in a benign fashion but certain histological features like hypercellularity, cellular pleomorphism and nuclear atypia...

VISCERAL LEISHMANIASIS AS FEVER OF UNKNOWN ORIGIN

Visceral leishmaniasis is the second most common cause of fever of unknown origin in our study. This disease is not common in adults, although it's endemic among the pediatric age group. The majority of the affected individuals were young. High grade spiking fever, chills and splenomegaly were unique findings. Other common findings were neutropenia, anemia, abnormal liver function tests, st...

A plastid of probable green algal origin in Apicomplexan parasites.

Protozoan parasites of the phylum Apicomplexa contain three genetic elements: the nuclear and mitochondrial genomes characteristic of virtually all eukaryotic cells and a 35-kilobase circular extrachromosomal DNA. In situ hybridization techniques were used to localize the 35-kilobase DNA of Toxoplasma gondii to a discrete organelle surrounded by four membranes. Phylogenetic analysis of the tufA...

Primary hepatic vascular leiomyosarcoma of probable portal vein origin.