Fuzzball Shadows: Emergent Horizons from Microstructure.

We study the physical properties of four-dimensional, string-theoretical, horizonless "fuzzball" geometries by imaging their shadows. Their microstructure traps light rays straying near the would-be horizon on long-lived, highly redshifted chaotic orbits. In fuzzballs sufficiently near the scaling limit this creates a shadow much like that of a black hole, while avoiding the paradoxes associated with an event horizon.

Multipole Ratios: A New Window into Black Holes.

We compute the gravitational multipole moments and ratios of moments of nonextremal and of supersymmetric black holes in four dimensions, as well as of horizonless microstate geometries of the latter. For supersymmetric and for Kerr black holes many of these multipole moments vanish, and their dimensionless ratios are ill defined. We present two methods to compute these dimensionless ratios, which for certain supersymmetric black holes agree surprisingly well.

Bilateral oophorectomy in a pregnant woman: hormonal profile from late gestation to post-partum: case report.

Background: A 16 week pregnant woman presented with massive theca-lutein cysts requiring bilateral oophorectomy. Pregnancy progressed uneventfully and spontaneous lactation ensued after delivery.

Methods: To study the role of the ovary on the hormonal profile at the end of gestation and in post-partum, we measured FSH, estradiol (E2), unconjugated estrone (E1), unconjugated estriol (E3), sex hormone-binding globulin, progesterone, dehydroepiandrosterone sulphate and prolactin at 37 weeks gestation and at 8 h, 4 days, 5 weeks, and 2 months post-partum.

[Peripheral precocious puberty caused by a juvenile granulosa cell ovarian tumor, with iso and heterosexual manifestations in a six years old girl].

A six years old girl consulted due to mammary development. On physical examination, clitoris enlargement and a tumor localized in the abdominal-pelvic region were observed. Hormonal study disclosed elevated testosterone and estradiol levels.

[Serous peritoneal papillary tumor of low malignancy potential. Report of a case].

Papillary serous carcinoma with low malignant potential, similar to those described in the ovary, can also originate in the peritoneum. Characteristically they show peritoneal spread without involvement of the ovary and, if present, it corresponds to a superficial implant similar to those seen in the rest of the peritoneal cavity. Histologically they correspond to a low malignant potential tumor; they are slow growing and have good prognosis.