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Paraskevas G.K.,Aristotle University of Thessaloniki | Natsis K.,Aristotle University of Thessaloniki | Ioannidis O.,George Papanikolaou General Regional Hospital
Romanian Journal of Morphology and Embryology | Year: 2013

An aberrant muscular fascicle, the so-called "accessory cleido-occipital muscle", originated from the anterior border of the cleido-occipital portion of the right trapezius muscle, was detected during a routine dissection of a female cadaver. The aforementioned muscular bundle coursing in the posterior cervical triangle, almost parallel to the anterior border of the trapezius muscle, inserted ultimately to the clavicle's medial third. In addition, prior to its insertion, the muscle provided a fibrous arch attached to the midportion of clavicle, overlying the main trunk of supraclavicular nerves. We noted that during abduction of the right arm, the fibrous arch entrapped the supraclavicular nerve trunk, presumably leading to sensory disturbances in nerve's area distribution. We review the relative restricted data in the available literature concerning that muscular variant and elucidate its importance during differential diagnosis of a mass and surgical exploration of the posterior cervical triangle.

Ioannidis O.,George Papanikolaou General Regional Hospital | Sekouli A.,George Papanikolaou General Regional Hospital | Paraskevas G.,Aristotle University of Thessaloniki | Kotronis A.,George Papanikolaou General Regional Hospital | And 5 more authors.
Journal of Research in Medical Sciences | Year: 2012

Intra-abdominal heterotopic ossification is extremely rare with only approximately 30 cases having been reported. While most reported cases have involved the mesentery, ossification of the peritoneum is even rarer. The pathogenesis remains undetermined but is generally considered a reactive process in response to various stimuli. Histologically, it is composed of a peripheral area with bone formation and a central area of reactive hypercellular fibrous tissue. We report a rare case of intra-abdominal heterotopic ossification of the parietal peritoneum following traumatic splenic rupture.

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