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Results for “diagnostic differentiation”

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PubMed1981

[Intraosseous osteolytic lesions. Diagnostic, differential diagnosis and therapy (author's transl)].

Any pathological damage occurring in a bone will produce either an osteolytic or osteosclerotic lesion which can be seen in the macroscopic specimen as well as in the roentgenogram. Various bone lesions may lead to local destructions of the bone. An osteoma or osteoplastic osteosarcoma produces an osteosclerotic lesion showing a dense mass in the roentgenogram; a chondroblastoma or an osteoclastoma, on the other had, induces an osteolytic focal lesion. This paper presents examples of different osteolytic lesions of the humerus. An osteolytic lesion seen in the roentgenogram may be either produced by an underlying non-ossifying fibroma of the bone, by fibrous dysplasia, osteomyelitis or Ewing's sarcoma. Differential diagnostic considerations based on the radiological picture include eosinophilic bone granuloma, juvenile or aneurysmal bone cyst, multiple myeloma or bone metastases. Serious differential diagnostic problems may be involved in case of osteolytic lesions occurring in the humerus. Cases of this type involving complications have been reported and include the presence of an teleangiectatic osteosarcoma as well as that of a hemangiosarcoma of the bone.

Bone Cysts↗
PubMed2004

Viral diseases of the liver in children: diagnostic and differential diagnostic considerations.

This review summarizes the general histologic features of acute and chronic hepatitides and highlights those morphologic findings that may suggest or be diagnostic of a specific agent or etiology. The main epidemiologic, clinical, and pathologic features of the hepatotropic viruses are discussed, with an emphasis on pediatric studies and the differential diagnosis of hepatitis in childhood.

Adult↗
PubMed2001

[Diagnostic and differential diagnostic potential of mitochondrial DNA assessment in patients with Leber's hereditary optic neuropathy].

OBJECTIVE: To study the primary mutations of mitochondrial DNA (mtDNA) associated with Leber's hereditary optic neuropathy (LHON) in patients with optic neuropathy. METHODS: Seventy-nine patients with a variety of bilateral optic neuropathy were examined. Mutations at np 3,460, np 11,778 and np 14,484 of mtDNA were tested by PCR-restriction fragment length polymorphism technique to detect DNA in peripheral blood. The samples were taken from 16 cases of clinically diagnosed LHON, 44 cases of suspected LHON, two cases of alcohol amblyopia, four cases of multiple sclerosis, five cases of autosomal dominant hereditary optic atrophy, 4 cases with primary open-angle glaucoma, three cases of spinocerebellar degeneration, and one case of ethambutol-induced optic neuropathy. RESULTS: The mutation at np 11,778 was identified in 31 cases (39.2%), consisting of all the 16 clinically diagnosed LHON cases, thirteen cases (29.5%) of the suspected LHON, and the two cases of alcohol amblyopia. The remaining 48 cases were negative for mtDNA mutations at np 3,460, np 11,778, or np 14,484. CONCLUSION: Assessment of mtDNA provides a useful diagnostic aid in confirming and excluding the diagnosis of LHON, particularly useful in cases without a family hereditary history and cases with cause unknown bilateral optic neuritis.

Adult↗