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Multiparametric Magnetic Resonance Imaging Characteristics of Prostate Tuberculosis.

Cheng Y, Huang L, Zhang X, Ji Q, Shen W - Korean J Radiol (2015)

Bottom Line: The histopathological results were obtained from biopsies in four men and from transurethral resection of the prostate in two men after the MRI examination.The T2WI signal intensity of the diffuse lesions was low but higher than that of muscle, which showed high signal intensity on diffusion weighted imaging and low signal intensity on an apparent diffusion coefficient map.Abscesses were found in one patient with the nodular type and in one with the diffuse type.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Tianjin First Central Hospital, Tianjin 300192, China.

ABSTRACT

Objective: To describe the multiparametric magnetic resonance imaging (MRI) appearance of prostate tuberculosis.

Materials and methods: Six patients with prostate tuberculosis were analyzed retrospectively. The mean age of the patients was 60.5 years (range, 48-67 years). The mean prostate specific antigen concentration was 6.62 ng/mL (range, 0.54-14.57 ng/mL). All patients underwent a multiparametric MRI examination.

Results: The histopathological results were obtained from biopsies in four men and from transurethral resection of the prostate in two men after the MRI examination. Nodular (33%, 2/6 patients) and diffuse lesions (67%, 4/6 patients) were seen on MRI. The nodular lesions were featured by extremely low signal intensity (similar to that of muscle) on T2-weighted imaging (T2WI). The T2WI signal intensity of the diffuse lesions was low but higher than that of muscle, which showed high signal intensity on diffusion weighted imaging and low signal intensity on an apparent diffusion coefficient map. MR spectroscopic imaging of this type showed a normal-like spectrum. Abscesses were found in one patient with the nodular type and in one with the diffuse type.

Conclusion: The appearance of prostate tuberculosis on MRI can be separated into multiple nodular and diffuse types. Multiparametric MRI may offer useful information for diagnosing prostate tuberculosis.

No MeSH data available.


Related in: MedlinePlus

Diffuse type prostate tuberculosis in 67-year-old man.(A) Bilateral peripheral zone shows diffuse hypointensity (arrowheads) on T2-weighted image, high signal intently on diffusion weighted image (DWI), (B) low signal intensity on apparent diffusion coefficient (ADC) map (C) (arrowheads), and small patchy area (arrow) with markedly high signal intensity on DWI and markedly low signal intensity on ADC. (D) Magnetic resonance spectroscopic imaging of left peripheral zone reveals high peak of citrate and low peak of choline.
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Figure 4: Diffuse type prostate tuberculosis in 67-year-old man.(A) Bilateral peripheral zone shows diffuse hypointensity (arrowheads) on T2-weighted image, high signal intently on diffusion weighted image (DWI), (B) low signal intensity on apparent diffusion coefficient (ADC) map (C) (arrowheads), and small patchy area (arrow) with markedly high signal intensity on DWI and markedly low signal intensity on ADC. (D) Magnetic resonance spectroscopic imaging of left peripheral zone reveals high peak of citrate and low peak of choline.

Mentions: Diffuse lesions were found in four (67%) of six patients. Only the PZ was involved in three patients; two and one diffuse lesions were seen in bilateral and unilateral PZs, respectively. Both the PZ and TZ were involved in the fourth patient. All diffuse lesions showed isointense signal on T1WI and low signal intensity on T2WI (but higher than that of muscle) (Fig. 4A). Restricted diffusion was identified on DWI. No diffuse lesion extended into the periprostatic tissue. Multiple nodules were detected in the TZ of patient no. 4, which showed markedly high and low signal intensities on DWI and the ADC map, respectively (Fig. 4B, C). This patient also underwent a MRS examination, the CC/C ratios from the hypointense areas were within the normal range (< 0.86) (Fig. 4D).


Multiparametric Magnetic Resonance Imaging Characteristics of Prostate Tuberculosis.

Cheng Y, Huang L, Zhang X, Ji Q, Shen W - Korean J Radiol (2015)

Diffuse type prostate tuberculosis in 67-year-old man.(A) Bilateral peripheral zone shows diffuse hypointensity (arrowheads) on T2-weighted image, high signal intently on diffusion weighted image (DWI), (B) low signal intensity on apparent diffusion coefficient (ADC) map (C) (arrowheads), and small patchy area (arrow) with markedly high signal intensity on DWI and markedly low signal intensity on ADC. (D) Magnetic resonance spectroscopic imaging of left peripheral zone reveals high peak of citrate and low peak of choline.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4499549&req=5

Figure 4: Diffuse type prostate tuberculosis in 67-year-old man.(A) Bilateral peripheral zone shows diffuse hypointensity (arrowheads) on T2-weighted image, high signal intently on diffusion weighted image (DWI), (B) low signal intensity on apparent diffusion coefficient (ADC) map (C) (arrowheads), and small patchy area (arrow) with markedly high signal intensity on DWI and markedly low signal intensity on ADC. (D) Magnetic resonance spectroscopic imaging of left peripheral zone reveals high peak of citrate and low peak of choline.
Mentions: Diffuse lesions were found in four (67%) of six patients. Only the PZ was involved in three patients; two and one diffuse lesions were seen in bilateral and unilateral PZs, respectively. Both the PZ and TZ were involved in the fourth patient. All diffuse lesions showed isointense signal on T1WI and low signal intensity on T2WI (but higher than that of muscle) (Fig. 4A). Restricted diffusion was identified on DWI. No diffuse lesion extended into the periprostatic tissue. Multiple nodules were detected in the TZ of patient no. 4, which showed markedly high and low signal intensities on DWI and the ADC map, respectively (Fig. 4B, C). This patient also underwent a MRS examination, the CC/C ratios from the hypointense areas were within the normal range (< 0.86) (Fig. 4D).

Bottom Line: The histopathological results were obtained from biopsies in four men and from transurethral resection of the prostate in two men after the MRI examination.The T2WI signal intensity of the diffuse lesions was low but higher than that of muscle, which showed high signal intensity on diffusion weighted imaging and low signal intensity on an apparent diffusion coefficient map.Abscesses were found in one patient with the nodular type and in one with the diffuse type.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Tianjin First Central Hospital, Tianjin 300192, China.

ABSTRACT

Objective: To describe the multiparametric magnetic resonance imaging (MRI) appearance of prostate tuberculosis.

Materials and methods: Six patients with prostate tuberculosis were analyzed retrospectively. The mean age of the patients was 60.5 years (range, 48-67 years). The mean prostate specific antigen concentration was 6.62 ng/mL (range, 0.54-14.57 ng/mL). All patients underwent a multiparametric MRI examination.

Results: The histopathological results were obtained from biopsies in four men and from transurethral resection of the prostate in two men after the MRI examination. Nodular (33%, 2/6 patients) and diffuse lesions (67%, 4/6 patients) were seen on MRI. The nodular lesions were featured by extremely low signal intensity (similar to that of muscle) on T2-weighted imaging (T2WI). The T2WI signal intensity of the diffuse lesions was low but higher than that of muscle, which showed high signal intensity on diffusion weighted imaging and low signal intensity on an apparent diffusion coefficient map. MR spectroscopic imaging of this type showed a normal-like spectrum. Abscesses were found in one patient with the nodular type and in one with the diffuse type.

Conclusion: The appearance of prostate tuberculosis on MRI can be separated into multiple nodular and diffuse types. Multiparametric MRI may offer useful information for diagnosing prostate tuberculosis.

No MeSH data available.


Related in: MedlinePlus