2020
DOI: 10.1007/s00259-020-04829-4
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Gallbladder malakoplakia masquerading as malignant primary on 18F-FDG PET/CT

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Cited by 8 publications
(7 citation statements)
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“…[4][5][6][7][8] A few case reports demonstrate that malacoplakia can show intense FDG uptake due to inflammatory cell infiltration, mimicking malignancy. [9][10][11][12][13][14][15] This case indicates that malacoplakia should be included in the differential diagnosis of hypermetabolic lesions in urinary tract, especially in patients with chronic urinary tract infection.…”
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confidence: 88%
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“…[4][5][6][7][8] A few case reports demonstrate that malacoplakia can show intense FDG uptake due to inflammatory cell infiltration, mimicking malignancy. [9][10][11][12][13][14][15] This case indicates that malacoplakia should be included in the differential diagnosis of hypermetabolic lesions in urinary tract, especially in patients with chronic urinary tract infection.…”
mentioning
confidence: 88%
“…Malacoplakia of the urinary tract can appear as solitary or multiple, polypoid, vascular, solid masses, or circumferential wall thickening associated with dilatation of the upper urinary tract 4–8 . A few case reports demonstrate that malacoplakia can show intense FDG uptake due to inflammatory cell infiltration, mimicking malignancy 9–15 . This case indicates that malacoplakia should be included in the differential diagnosis of hypermetabolic lesions in urinary tract, especially in patients with chronic urinary tract infection.…”
mentioning
confidence: 90%
“…1,2 Histologically, malakoplakia is characterized by present of von Hansemann cells and Michaelis-Gutmann bodies. 1,2 Because of its rarity and intense 18 F-FDG uptake, [3][4][5] diagnosing malakoplakia with PET/CT can be challenging, particularly when it occurs at atypical locations, as observed in this case. This case emphasizes that, in addition to some known benign (tuberculosis 6 and sarcoidosis 7 ) or malignant conditions (germ cell tumor, 8 stromal tumor, 9,10 metastasis, [11][12][13] and hematological malignancy involvement [14][15][16][17][18] ), the malakoplakia should be considered as a rare differential diagnosis for epididymo-testicular lesions with intense 18 F-FDG uptake on PET/CT, even in immunocompetent patients.…”
mentioning
confidence: 95%
“…In some rare cases, malakoplakia can also infiltrate into adjacent organs, as shown in this case, mimicking malignant tumors. Malakoplakia always exhibits intense FDG uptake in 18 F-FDG PET/CT, owing to the abundance of activated macrophages with increased cellular glycolysis 7–9 . However, the possibility of a huge hypermetabolic malignant carcinoma developing without lymphatic involvement and distant metastasis is extremely unlikely 10 .…”
mentioning
confidence: 99%
“…Malakoplakia always exhibits intense FDG uptake in 18 F-FDG PET/CT, owing to the abundance of activated macrophages with increased cellular glycolysis. [7][8][9] However, the possibility of a huge hypermetabolic malignant carcinoma developing without lymphatic involvement and distant metastasis is extremely unlikely. 10 All of these features help to differentiate malignant and inflammatory diseases in this case.…”
mentioning
confidence: 99%