Undiagnosed collecting duct carcinoma presenting as meningeal carcinomatosis and multiple bone metastases.

A 54-year-old woman presented with blepharoptosis, numbness in the lower lip, dysgeusia and pain in the extremities and back. MRI showed marked meningeal thickening and multiple bone lesions accompanying a prominent enhancing effect. CT scan of the chest and abdomen appeared to be unremarkable for primary cancer.

Heterologous diploid nuclei in the violet root rot fungus, Helicobasidium mompa.

Allelic genes hga1-1 and hga1-2, which encode G protein alpha subunit in the violet root rot fungus, Helicobasidium mompa, were sequenced and characterized. Restriction fragment polymorphism (RFLP) analysis determined that the gene is present as a single locus in the single basidiospore isolates, while strain V169 possessed both alleles of this gene. Therefore, although basidiospore isolates are dikaryon, they are homokaryotic.

Telomeric fingerprinting of the violet root rot fungus, Helicobasidium mompa: a useful tool for karyotype estimation.

We hybridized the telomere-associated DNA sequence pTel46 isolated from Coprinus cinereus with Helicobasidium mompa genomic DNA. The hybridized fragments were more sensitive to Bal31 nuclease than those that were not hybridized, suggesting that they were located at the ends of chromosomes in H. mompa.

THE OCCURRENCE OF HISTOCHEMICAL ACTIVITY OF 3β-HYDROXYSTEROID DEHYDROGENASE IN THE DEVELOPING TESTES OF POECILIA RETICULATA.

In the mature testes of the guppy, Poecilia reticulata, some groups of cells, distributed sparsely in the interspace between the peripheral germ cell layer and the hilar duct system, show evident histochemical response for Δ -3β-hydroxysteroid dehydrogenase (3β-HSD). In the testis of newly delivered guppies, somatic cells are present in the testicular hilus as a compact mass without revealing any structural differentiation. In the testis of juvenile fish of the 8mm stage about 7 days after birth, interstitial cells resembling histologically those of adult testes become differentiated from the somatic cell mass and, though only in some specimens, coincidentally begin to display weak but obvious histochemical response for 3β-HSD.