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Imaging of nail-patella syndrome
(2005) Tuncbilek N.; Karakas H.M.; Okten O.O.
Nail-patella syndrome is a rare disorder, which is inherited as an autosomal dominant trait. This condition is also known as hereditary osteo-onychodysplasia or Fong's syndrome. Posterior iliac horns are commonly found in this syndrome and are considered pathognomonic. In this report, we describe the appearance, location, and structure of iliac horns with respect to radiography and magnetic resonance imaging.
Use of dynamic contrast-enhanced magnetic resonance imaging for differentiating between aggressive rectal tumours: Two cases with small cell carcinoma and malignant melanoma
(2006) Tuncbilek N.; Karakas H.M.; Okten O.O.
Poorly differentiated small cell carcinomas and malignant melanomas are among the rarest of primary colorectal malignancies. Although very aggressive and lethal, small cell carcinomas and the amelanotic variety of malignant melanomas have similar radiological features to adenocarcinomas. We present two different cases with these unusual tumours, with special emphasis on their dynamic contrast-enhanced magnetic resonance imaging features. The dynamic contrast-enhanced magnetic resonance imaging revealed that these tumours have a faster and stronger enhancement pattern than most adenocarcinomas. The technique is thus potentially useful for the preoperative diagnosis of unusual aggressive tumours and for guiding the choice of treatment.