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Supplemental Digital Content is available in the text.

In this study, the statolith microstructure of thejumbo squid Dosidicus gigas was used to determine age, individual growth, and changes in sexual maturity off the west Coast of the central region of the Gulf of California during 2000 and 2002. The number of individuals sampled was 3,369 with a sex ratio of 1.8:1 (female to male). The size at first maturity (ML50%) in males varied between 46 cm and 56 cm, which was less than that seen in females (76-79 cm). The age of 251 squid was analyzed, and the growth of each sex was described by fitting the Gompertz and logistic models to the age-mantle length (ML) data. The Gompertz model best described the growth of the jumbo squid, and no significant differences were detected between sexes (ARSS, F = 0.73, P = 0.54). The parameters estimated for the combined data were ML∞ = 143.3cm and g (growth coefficient at inflection point) = 0.004/y and to (age at inflection point) = 259.5 days. From the hatch date frequency distribution, a permanent incorporation of small individuals (ML, <55 cm) was identified in the fishing zone with 2 maximum values, one in May and another in November, suggesting that there are at least 2 cohorts in the population. [ABSTRACT FROM AUTHOR]

Spinal dural arteriovenous fistulae are the most common type of spinal vascular malformations (AVMs). They have been classified into four types: dural AVM (type I), glomus AVM (type II), juvenile AVM (type III), and intradural direct arteriovenous fistula (type IV). Intradural AVMs manifest as subarachnoid or intramedullary hemorrhages, whereas dural AVM manifest as epidural hematoma. Spinal osseous epidural arteriovenous fistula (AVF) is not a well-defined vascular abnormality in the spine and consists in a high-flow vascular lesion outside the dura or spinal canal. It is located in the extradural space involving a bone at the area of the dilated venous sac to which all the feeders converge to the margin. We describe the case of a 14-year-old girl with cervical epidural hematoma caused by a spinal epidural arteriovenous fistula.

Pancreaticoduodenal artery aneurysm (PDA) is a rare visceral aneurysm and represents 1.5% of all the visceral arterial aneurysms. An 81-year-old man was admitted with acute abdominal pain. He suffered 2 previous episodes of pancreatitis and underwent abdominal aortic aneurysm repair 11 years before. The computed tomography scan revealed a 92-mm aneurysm of inferior PDA artery with prerupture signs associated with the celiac trunk obstruction. The patient underwent a selective catheterization and embolization of superior PDA artery with coils, inferior PDA artery with 12-mm Amplatzer, and aneurysm sac embolization by Onyx and coils. The postoperative course was uneventful and the patient was discharged on the fourth postoperative day. Celiac trunk stenosis could be one of the possible etiology but atherosclerosis and pancreatitis are the 2 most common risk factors. Treatment of choice is yet to be established and it has to be properly defined “case by case”; surgery, endovascular embolization, or percutaneous thrombin injection are valuable approaches.