Results Of Magnetic Resonance Imaging Scans Research Articles

Globoid cell leukodystrophy in two dachshund siblings

AbstractAn 11‐week‐old male dachshund and its 13‐week‐old female sibling presented with slowly progressive gait abnormalities, cerebellar ataxia and intention head tremor. In the pedigree of their parents, there were no signs of these neurological abnormalities. The magnetic resonance imaging scan results, cerebrospinal fluid and complete blood analysis obtained in the male dog were not consistent with metabolic, infectious or anomalous conditions, leaving a degenerative disorder as the most likely differential diagnosis. Both puppies were euthanased (male after 3 weeks and female after 6 weeks) due to diffuse central nervous system abnormalities. Histopathology findings were consistent with globoid cell leukodystrophy. To the authors’ knowledge, this is the first confirmed case of this lysosomal storage disease in a dachshund.

Cutaneous paragonimiasis due to triploid Paragonimus westermani presenting as a non-migratory subcutaneous nodule: a case report

IntroductionParagonimiasis is a food-borne infection caused by Paragonimus parasites. The lungs and pleura are the primary sites for the infection; however, ectopic infection can occur in other organs such as skin, liver and brain. It is difficult to make a diagnosis of ectopic paragonimiasis due to an ignorance of, and unfamiliarity with the disease. We report the case of a patient with subcutaneous paragonimiasis diagnosed by histopathological analysis and serological testing.Case presentationA 39-year-old Chinese immigrant woman presented with a subcutaneous nodule in her left lower back. The nodule was initially suspected of lipoma and she was followed up on without any treatment. However, it gradually indurated and the nodule was resected surgically. A magnetic resonance imaging scan revealed a polycystic lesion with inhomogeneous low or high intensity on T1- or T2-weighted images, respectively. The rim of the lesion was enhanced after contrast enhancement, but the inside did not show high-signal intensity. A histological analysis of the surgically resected specimen revealed variable-sized tubulo-cystic structures. The cyst wall showed a granulomatous change with scant eosinophilic infiltration. A number of parasite ova were observed in the necrotic tissue inside the cysts, and a parasite body with a presumed oral sucker and reproductive organ was also detected, suggesting a trematode infection. A subsequent serological examination showed a positive reaction of her serum to the Paragonimus westermani antigen. No abnormal findings were found on her chest computed tomography scan. The diagnosis of subcutaneous paragonimiasis caused by Paragonimus westermani was made.ConclusionsWe report a case presenting only as a non-migratory subcutaneous nodule without any pleuropulmonary lesion, which was initially suspected of lipoma but denied by magnetic resonance imaging scan results. The case was subsequently diagnosed as subcutaneous paragonimiasis from the results of histopathological analysis and serological testing.

Intracranial germinoma: A rare but important differential diagnosis in children with growth retardation

Abstract Aim: Intracranial germinoma is a rare malignant tumour in childhood with an excellent prognosis under adequate therapy. Finding the right diagnosis at an early stage is difficult because of the slow‐growing tumour and the resulting lack of clinical symptoms. Methods: Our patients with histologically secured germinoma were retrospectively assessed concerning growth retardation, pituitary hormone status, magnetic resonance imaging scan results and clinical symptoms to find out whether there is a leading parameter. Results: In all our patients, the leading symptom was growth retardation of at least 2 y before being diagnosed. Conclusion: Growth retardation seems to be a very early sign of germinoma in the suprasellar region. Therefore, early neuroradiological imaging combined with pituitary hormone status should be considered in every paediatric patient with a history of secondary growth retardation.

Intracranial germinoma: A rare but important differential diagnosis in children with growth retardation

Intracranial germinoma is a rare malignant tumour in childhood with an excellent prognosis under adequate therapy. Finding the right diagnosis at an early stage is difficult because of the slow-growing tumour and the resulting lack of clinical symptoms. Our patients with histologically secured germinoma were retrospectively assessed concerning growth retardation, pituitary hormone status, magnetic resonance imaging scan results and clinical symptoms to find out whether there is a leading parameter. In all our patients, the leading symptom was growth retardation of at least 2 y before being diagnosed. Growth retardation seems to be a very early sign of germinoma in the suprasellar region. Therefore, early neuroradiological imaging combined with pituitary hormone status should be considered in every paediatric patient with a history of secondary growth retardation.