Jacques Collignon

Clinical and radiological aspects of dysplastic gangliocytoma (Lhermitte-Duclos disease): a report of two cases with review of the literature.

Two cases of Lhermitte-Duclos disease confirmed by biopsy are reported. Review of the 58 published cases shows that the disease can manifest itself only by signs of increased intracranial pressure. Cerebellar symptoms are not constant. Computed tomographic (CT) scans suggest the diagnosis by showing a posterior fossa lesion, iso- and hypodense, partially calcified, and not enhanced by contrast medium. Magnetic resonance imaging (MRI) seems to define limits of the lesion better than CT scanning and could improve the surgical approach. Surgical excision of the lesion is the only satisfactory treatment. The postoperative prognosis is usually favorable.

The intravascular treatment of a cavernous fistula caused by rupture of a traumatic carotid trigeminal aneurysm.

SummaryThe authors report the particular treatment of a traumatic cavernous fistula caused by the rupture of an exceptional lesion: a false aneurysm of the C5 segment of the right carotid artery situated at the origin of a persistent trigeminal artery.

Neutrophilic Eccrine Hidradenitis. A Case Report

Neutrophilic eccrine hidradenitis (NEH) is a rare neutrophilic dermatosis occurring most frequently during induction chemotherapy for a variety of malignancies. We report a case of NEH in a 41-year-old woman with acute myeloblastic leukemia under daunorubicin, cytarabine and etoposide chemotherapy. She developed red, tender and painful nodules on a shoulder. The lesions resolved spontaneously. Histological examination is mandatory as the clinical presentation of this dermatosis is highly polymorphic. Leukemia cutis, sepsis, deep fungal infection and Sweets syndrome must be excluded as these implicate different therapies.

Radiation-induced myelopathy and vertebral necrosis

Radiation-induced myelopathy is often a diagnosis of exclusion. In addition to the classic criteria needed to support the diagnosis, the presence of another radiation-induced lesion, such as aseptic vertebral necrosis, is useful to confirm the cause of the spinal cord lesion.