[Hydatid cyst of soft tissues: MR imaging findings (Report of three cases)]. / Kyste hydatique des tissus mous: apport de l'IRM (A propos de trois observations).

Three cases of hydatid disease of the soft tissues are reported. All presented as soft tissue lesions in the neck and lower extremities. All three cases were studied with ultrasound (US) and magnetic resonance (MR) imaging techniques. Two patients presented with multivesicular lesions, which were considered diagnostic for hydatid disease. The third showed a lesion with hypoechoic solid and lobulated pattern mimicking lymph node. MR outlined the cystic pattern with intense peripheral enhancement and was suggestive of an infected cystic lesion. Surgery was performed in all three cases. Hydatid disease presenting in the soft tissues can be diagnosed with confidence, when US and/or MR shows multivesicular lesions. MR appears to be the most useful imaging technique when a complex or solid pattern is present. Enhancement of the peri-cystic soft tissues can be considered as a suggestive MR feature of soft tissue hydatid disease.

Adenome parathyroidien intrathymique: a propos d'un cas

Introduction : Les adenomes parathyroidiens posent le probleme de leur diagnostic topographique. A partir d'un cas clinique d'adenome parathyroidien intrathymique; les auteurs rappellent l'interet d'un bilan localisateur preoperatoire. Observation : Il s'agit d'un homme age de 19 ans presentant une hyperparathyroidie primitive. La scintigraphie a la Sestamibi a montre une hyperfixation inhabituelle du radiotraceur au niveau du creux sus sternal; permettant d'evoquer le diagnostic d'un adenome parathyroidien intrathymique. Il a ete realise une adenectomie en utilisant une voie d'abord cervicale et l'evolution post-operatoire etait favorable. Conclusion : La scintigraphie Sestamibi constitue l'examen de choix pour etablir le diagnostic topographique des adenomes parathyroidiens. Cet examen permet de limiter la voie d'abord chirurgicale et d'eviter les cervicotomies blanches