Morphometric analysis of vidian canal and its relations with surrounding anatomic structures by using cone-beam computed tomography

Background: We identified the vidian canal (VC) in a Turkish subpopulation on cone-beam computed tomography (CBCT) images and explored its anatomic relationships; the canal serves as an anatomic pathway during endonasal surgical approaches. Materials and methods: Coronal and axial CBCT images of 100 patients (50 males and 50 females) were evaluated (slice thickness and interval, 0.5 mm). We measured the length of the VC length, extent of VC pneumatisation into the sphenoid sinus, position of the VC relative to the medial pterygopalatine plate (MPP), pterygopalatine fossa (PPF) depth, and VC-VC, VC-MPP, and VC-foramen rotundum (FR) distances, the angle between the posterior end of the middle turbinate and the lateral part of the VC anterior opening, and the angle between the VC and the palatovaginal canal. Results: The mean VC length was 13.09 ± 2.07 and 13.01 ± 2.12 mm on the right and left sides, respectively. Relative to the MPP, the VC was located medially in 54.5% of patients, on the same level in 36%, and laterally in 9.5%. Pneumatisation was of grade I in 24% of patients, grade II in 33%, grade III in 23.5%, and grade IV in 19.5%. The VC-FR and VC-MPP distances were significantly greater on the left side. The angle between the posterior end of the middle turbinate and the lateral part of the anterior VC opening was significantly greater on the right side. The VC-VC distance was significantly greater when the VC lay lateral to the MPP. Conclusions: Anatomic characteristics of the VC on CBCT images unique to Turkish populations should be kept in mind during surgery

Evaluation of the anatomical measurements of the temporomandibular joint by cone-beam computed tomography

Background: To examine the detailed anatomy of the normal temporomandibular joint (TMJ) in a large series of patients divided into different age groups.  Materials and methods: Cone-beam computed tomography images of 100 patients included in the study. Morphometric analysis regarding mandibular con- dyle and mandibular fossa, articular tubercle and the zygomatic arch was done. The volumetric and surface measurements of mandibular condyles (total tissue volume [TV], total bone volume [BV], bone surface area [BS] and percentage of bony tissue of the mandibular condyle [BV/TV]) were also measured.  Results: Statistical analysis was performed and statistically significant differences according to the side of the joint, sex, and age groups were reported. Additionally, correlations between aging and all of these parameters were also determined.  Conclusions: TV, BV, BS and BV/TV parameters according to side, age, and sex groups were defined for normal TMJ which may help to understand the onset and progress of TMJ disorders.

Some observations on the habitat of the red sea immigrant sweeper, pempheris vanicolensis, on the mediterranean coast of turkey

A Lessepsian migrant fish species, Pempheris vanicolensis, was observed to occur in a brackish water cave on the shore near Antalya in conditions contrary to its documented habitat specialties in the Mediterranean Sea. © 1999 Taylor & Francis Group, LLC

First record of the small-toothed argentine, glossanodon leioglossus (valenciennes, 1848) (osteichthyes: Argentinidae), from turkey

[No abstract available

New record of a lessepsian migrant pteragogus pelycus randall, 1981 (teleostei: Labridae) for northern Cyprus

The fish Pteragogus pelycus Randall, 1981 is reported from the coast of northern Cyprus for the first time. The species has apparently reached the Mediterranean from the Red Sea through the Suez Canal as a Lessepsian migrant. This record is one of the first of the species in the Mediterranean Sea. © Max Kasparek Verlag, Heidelberg