Items tagged “differential”

7 results found
Article

Adrenal lesions (differential)

Adrenal lesions cover a broad spectrum from benign to neoplastic entities. Due to increased use of cross-sectional imaging they are frequently detected as incidental lesions (incidentalomas). If found incidentally, please refer to the Management of Incidental Adrenal Masses: American College of ...
Article

Empyema vs pulmonary abscess

Distinguishing between an empyema and a peripherally located pulmonary abscess is essential. Lung abscesses are usually managed with prolonged antibiotics and physiotherapy with postural drainage whereas an empyema usually requires percutaneous or surgical drainage. Radiographic features Plai...
Article

Toxoplasmosis vs lymphoma

Toxoplasmosis and lymphoma are frequently differential diagnoses in patients with HIV/AIDS and as treatment is substantially different distinguishing the two is important.  In many instances, the imaging appearance is classic and differentiation is not problematic; however, in 50-80% of cases, ...
Article

Surgical sieve (mnemonic)

A surgical sieve is an approach to differential diagnosis that prompts the user to consider various types of pathologies systematically. Various versions of this mnemonic exist: 5I 3-Scotland MIDNIT VINDICATE VITAMIN CDEF NAIVE MD DICTionary Mnemonics 5I 3-Scotland Where "3-Scotland" rel...
Article

Very bizarre generalized lesions of bone (differential)

Very bizarre generalized lesions of bone tend to make you exclaim "Oh my! What is going here?"  Although there are numerous potential causes, in this situation it is worth thinking of a number of entities: skeletal dysplasias and metabolic diseases Paget disease fibrous dysplasia phakomatose...
Article

Diffuse colonic nodularity (differential)

Diffuse colonic nodularity on barium enema or CT colonography has a range of possible etiologies: lymphoid hyperplasia (tend to be small and discrete) lymphoma (tend to be larger nodules and confluent) urticaria (closely spaced polygonal lesions, history is often helpful) pseudomembranous co...
Article

Main differentials in musculoskeletal imaging

Here is a list of some of the most useful differential diagnoses in musculoskeletal imaging. By process lucent/lytic bone lesions (FEGNOMASHIC) multiple lucent/lytic bone lesions benign lytic bone lesions in patients under 30 diffuse bony sclerosis permeative process in bone pseudopermeat...

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