INTRODUCTIONSchwannomas are benign, encapsulated, slow-growing and usually solitary tumors originating from Schwann cells of the peripheral nerve sheath. Schwannomas of the superficial peroneal nerves are very rare, and therefore scarcely documented in the literature. The authors report a case of a diagnosed superficial fibular nerve sheath tumor with an unreported clinical presentation.PRESENTATION OF CASEA 52-year-old Caucasian female arrived to our Orthopedics Department complaining of pain and numbness of the lateral aspect of her left leg. These symptoms were present for a year and were more evident at the end of the day, or after a long time in the orthostatic position. No evidence of other medical illnesses was found. There was no record of prior traumatic events related to that limb. Diagnosis of a benign peripheral nerve tumor was achieved and the patient was treated by surgical excision of the lesion.DISCUSSIONThe intermittent symptomatology presentation on this case suggest a mechanical compression etiology, allied to classical pain and paresthesia often exhibited by this kind of the tumor. An intracompartimental pressure elevation could explain why the symptoms disclosed an episodic pattern, due to a constricted, inclosed nerve.CONCLUSIONWe describe a rare case of a patient with an unusual superficial peroneal nerve Schwannoma clinical presentation. Literature on this topic is scarce and, therefore, this case report intends to add further data about this kind of lesion.

HighlightsCystic Echinococcus in the bone is rare, comprising 0.5%–2.5% of all human hydatidosis.Association of Hydatid disease to pathologic fractures envolving knee prosthesis have not yet been described.A combined surgical and medical approach is of paramount importance to avoid recurrence.Resulting osseus defects is challenging and require specific prosthesis when treating this entity.

A neurofibromatose tipo 1 (NF-I) é uma patologia hereditária autossómica dominante, na qual deformidades da coluna vertebral podem manifestar-se em idades muito precoces. A escoliose distrófica manifesta-se habitualmente como deformidade adquirida muito acentuada, com evolução progressiva e frequentemente com necessidade de correção cirúrgica. Os autores reportam o caso raro de um doente de 14 anos com escoliose distrófica progressiva, tratado nesta instituição. O resultado obtido foi muito satisfatório e pretende-se acrescentar orientação clínica à literatura científica atual.