Midline Prostatic Cysts in Healthy Men: Incidence and Transabdominal Sonographic Findings
Masahito Ishikawa1,
Hiroshi Okabe1,
Takaki Oya2,
Mari Hirano2,
Masanori Tanaka2,
Machiko Ono2,
Kenichi Kawamura2,
Nozomu Fujimoto2 and
Keisuke Sakurada2
1 Department of Clinical Laboratory, Sapporo Teishin Hospital, 14-1-5 Kawazoe,
Minami-ku, Sapporo 005-8798, Japan.
2 Department of Health Care, Sapporo Teishin Hospital, Sapporo 005-8798,
Japan.
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Fig. 1A. —45-year-old asymptomatic man with midline prostatic cyst.
Transverse sonogram shows cystic lesion (arrow) in midline of
prostate gland.
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Fig. 1B. —45-year-old asymptomatic man with midline prostatic cyst.
Longitudinal sonogram shows cystic lesion (arrow) within prostate
gland.
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Fig. 2A. —62-year-old asymptomatic man with small midline prostatic
cyst. Transverse (A) and longitudinal (B) sonograms show cystic
lesion (arrows) in midline of prostate gland (3 x 3 mm).
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Fig. 2B. —62-year-old asymptomatic man with small midline prostatic
cyst. Transverse (A) and longitudinal (B) sonograms show cystic
lesion (arrows) in midline of prostate gland (3 x 3 mm).
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Fig. 3A. —Growth of midline prostatic cyst during 12 months in
46-year-old man with urologic symptoms. Hematospermia had been noticed
immediately after initial examination in our study. Transverse sonogram shows
midline prostatic cyst (arrow) in 2001, before complaints of
hematospermia. Cyst size (8 x 8 x 11 mm) had not changed since
original discovery in 1996.
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Fig. 3B. —Growth of midline prostatic cyst during 12 months in
46-year-old man with urologic symptoms. Hematospermia had been noticed
immediately after initial examination in our study. Longitudinal sonogram of
A shows posterior echo enhancement.
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Fig. 3C. —Growth of midline prostatic cyst during 12 months in
46-year-old man with urologic symptoms. Hematospermia had been noticed
immediately after initial examination in our study. Transverse sonogram of
midline prostatic cyst (arrow) obtained in 2002, at follow-up
examination after development of hematospermia, shows cyst growth (10 x
8 x 14 mm) compared with that in 2001.
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Fig. 3D. —Growth of midline prostatic cyst during 12 months in
46-year-old man with urologic symptoms. Hematospermia had been noticed
immediately after initial examination in our study. Longitudinal sonogram of
C shows posterior echo enhancement.
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Fig. 4A. —Growth of midline prostatic cyst during 8 months in
58-year-old asymptomatic man. B, Transverse (A) and longitudinal
(B) sonograms obtained in 2000 show beaklike midline cyst
(arrow, A and B) in prostate (10 x 10
mm).
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Fig. 4B. —Growth of midline prostatic cyst during 8 months in
58-year-old asymptomatic man. Transverse (A) and longitudinal
(B) sonograms obtained in 2000 show beaklike midline cyst
(arrow, A and B) in prostate (10 x 10
mm).
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Fig. 4C. —Growth of midline prostatic cyst during 8 months in
58-year-old asymptomatic man. Transverse sonogram obtained 8 months after
A and B shows no change in cyst size (10 x 10 mm).
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Fig. 4D. —Growth of midline prostatic cyst during 8 months in
58-year-old asymptomatic man. Longitudinal sonogram shows slight cyst growth
(arrowhead) of 15 mm toward seminal vesicles.
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Copyright © 2003 by the American Roentgen Ray Society.
