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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

Nodular type of prostate tuberculosis in 63-year-old man.A. Axial T2-weighted image (T2WI) shows multiple extremely low signal intensity nodules in left peripheral zone (arrowheads). B. Coronal T2WI shows multiple nodules in peripheral and transition zones. Images C and D were taken from same slice as image A. Nodules were hypointense on diffusion-weighted image (C) and apparent diffusion coefficient map (D).
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Figure 2: Nodular type of prostate tuberculosis in 63-year-old man.A. Axial T2-weighted image (T2WI) shows multiple extremely low signal intensity nodules in left peripheral zone (arrowheads). B. Coronal T2WI shows multiple nodules in peripheral and transition zones. Images C and D were taken from same slice as image A. Nodules were hypointense on diffusion-weighted image (C) and apparent diffusion coefficient map (D).

Mentions: The nodular type was found in two of six (33%) patients. MRI showed multiple nodules in the peripheral zone (PZ) and the TZ. Seven nodules were found in the PZ and 10 were found in the TZ. Nodule diameter was 4-18 mm. All nodular lesions showed were isointense on T1WI, extremely low signal intensity (similar to that of muscle) on T2WI (Figs. 2A, B, 3A), and low signal intensity on DWI and the ADC map (Fig. 2C, D). None of the nodules protruded into the periprostatic tissue. A hyperintense area was seen in one of the nodules from patient no. 1 on T2WI (Fig. 3B) and showed markedly high signal intensity on DWI (Fig. 3C, D). This patient also presented with an enlarged right seminal vesicle and right epididymis, as well as multiple lymph nodes in the right groin with similar abnormal signal intensity. Abscesses of the epididymis were confirmed during the epididymectomy.


Multiparametric Magnetic Resonance Imaging Characteristics of Prostate Tuberculosis.

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

Nodular type of prostate tuberculosis in 63-year-old man.A. Axial T2-weighted image (T2WI) shows multiple extremely low signal intensity nodules in left peripheral zone (arrowheads). B. Coronal T2WI shows multiple nodules in peripheral and transition zones. Images C and D were taken from same slice as image A. Nodules were hypointense on diffusion-weighted image (C) and apparent diffusion coefficient map (D).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 2: Nodular type of prostate tuberculosis in 63-year-old man.A. Axial T2-weighted image (T2WI) shows multiple extremely low signal intensity nodules in left peripheral zone (arrowheads). B. Coronal T2WI shows multiple nodules in peripheral and transition zones. Images C and D were taken from same slice as image A. Nodules were hypointense on diffusion-weighted image (C) and apparent diffusion coefficient map (D).
Mentions: The nodular type was found in two of six (33%) patients. MRI showed multiple nodules in the peripheral zone (PZ) and the TZ. Seven nodules were found in the PZ and 10 were found in the TZ. Nodule diameter was 4-18 mm. All nodular lesions showed were isointense on T1WI, extremely low signal intensity (similar to that of muscle) on T2WI (Figs. 2A, B, 3A), and low signal intensity on DWI and the ADC map (Fig. 2C, D). None of the nodules protruded into the periprostatic tissue. A hyperintense area was seen in one of the nodules from patient no. 1 on T2WI (Fig. 3B) and showed markedly high signal intensity on DWI (Fig. 3C, D). This patient also presented with an enlarged right seminal vesicle and right epididymis, as well as multiple lymph nodes in the right groin with similar abnormal signal intensity. Abscesses of the epididymis were confirmed during the epididymectomy.

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