A 12-Day-Old Boy with Methemoglobinemia After Circumcision with Local Anesthesia (Lidocaine/Prilocaine).

A 12-day-old boy presented with duskiness 4 h after circumcision with local anesthesia: infiltration with lidocaine (6 mL 1 %) and topical EMLA cream (2.5 % lidocaine/2.5 % prilocaine).

MRI diagnosis of occipital cephalohematoma mimicking an encephalocele.

A 4-day old neonate presented with a midline swelling located on the back of its head. The two most likely causes of the swelling were cephalohematoma, which is self-limiting and carries a benign prognosis, and encephalocele, often associated with central nervous system malformations. Evaluation with magnetic resonance imaging (MRI) revealed a subperiosteal blood collection with intact underlying structures, establishing the diagnosis of a cephalohematoma.

Transient paresis associated with cat-scratch disease: case report and literature review of vertebral osteomyelitis caused by Bartonella henselae.

Cat-scratch disease (CSD) rarely presents as vertebral osteomyelitis. We describe a case with paresis of the arm with total recovery after antibiotic and neurosurgical therapy. We reviewed 20 other cases of CSD vertebral osteomyelitis in the literature.

Pancreatitis, complicated by a pancreatic pseudocyst associated with the use of valproic acid.

A 12-year-old boy developed pancreatitis, complicated by a pancreatic pseudocyst, as an adverse reaction to valproic acid (VPA) treatment for epilepsy. Pancreatitis subsided within three weeks after discontinuation of VPA. The pancreatic pseudocyst was managed without surgery and resolved spontaneously in four weeks.

Isolated Langerhans' cell histiocytosis of the spine: A diagnostic and therapeutic challenge.

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