ABSTRACT
A pituitary abscess case clinically evolving as an adenoma is presented. The diagnosis was established at the time the surgical procedure was performed. Previous studies and postoperative investigation proved the absence of features accounting for side infection. Moreover, anatomopathological studies also dismissed the existence of any type of tumoral traces. However, due to a lack of experience, the pre-operative magnetic resonance imaging was interpreted as pertaining to pituitary adenoma on the basis of its greater frequency.
Subject(s)
Abscess/diagnosis , Pituitary Diseases/diagnosis , Abscess/surgery , Adenoma/diagnosis , Adult , Diagnosis, Differential , Female , Humans , Magnetic Resonance Imaging , Pituitary Diseases/surgery , Sella Turcica/pathologySubject(s)
Central Nervous System Diseases/parasitology , Cysticercosis/parasitology , Adult , Central Nervous System Diseases/diagnostic imaging , Cerebral Angiography , Cerebrospinal Fluid Shunts , Cysticercosis/diagnostic imaging , Female , Humans , Male , Middle Aged , Myelography , Tomography, X-Ray ComputedABSTRACT
Tumors arising from the nerve sheaths are a controversial group of neoplasms because of disagreement regarding the clinical course and histopathologic characteristics. Malignant Schwannoma is a rare entity with aggressive biological behaviour (local infiltration and hematogenous metastases). The tumor arises from Schwann cells and may show diverse histological patterns. A malignant epithelioid paravertebral Schwannoma was diagnosed in a 48-year-old patient. Tumor metastases were demonstrated in the lungs, pericardium, liver, intestine, kidney, adrenals, bones and lymph nodes. The differential diagnosis and literature on this topic are commented on.
