Inflammatory Pseudotumor (Myoblastic Tumor) of the Genitourinary Tract

Park, Sung Bin; Cho, Kyoung‐Sik; Kim, Jeong Kon; Lee, Jong Hwa; Jeong, Ae Kyung; Kwon, Woon Jung; Kim, Hak Hee

doi:10.2214/ajr.07.3663

Cited by 69 publications

(105 citation statements)

References 14 publications

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“…The etiology of IPTs remains unclear, and some possible explanations include trauma, infection, autoimmune disease, and even foreign body-induced inflammation [19][20][21] were mentioned. The clinical symptoms of IPTs are nonspecific and depend on the growth region of lesions and its relations with neighboring structures.…”

Section: Discussionmentioning

confidence: 99%

A Painful Groin Pseudotumor Mimicked an Incarcerated Hernia

Lin¹,

Huang²,

Hsu³

2016

J Clin Case Rep

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Incarcerated inguinal hernia is one of the emergency operations for delay diagnosis may cause serious dreadful effects such as bowel obstruction, bacterial translocation with sepsis, intestinal wall necrosis, bowel perforation, or even death. On the other hand, inflammatory pseudotumors (IPTs) were first described by Brunn, but their cause remains unknown. These benign lesions are common in children and young adults, but they can also occur in elderly adults. An 88-year-old Chinese man was referred to our hospital with a painful mass in his right inguinal region for 3 days. The patient complained about abdominal fullness, poor appetite, and right groin painful and an enlarged lesion in his groin site since five days ago. Physical examination revealed a tender, painful, untouchable, and nonpulsatile mass lesion in the right groin area. Non-specific bowel gas and stool impaction in the KUB. Ultrasound and color Doppler images showed a laminated and well-defined mass on the right inguinal region with a hypoechoic center without blood flow signals and increased peripheral vascularity, which was similar to a bowel loop through the inner ring into the inguinal canal. Computed tomography revealed a soft tissue mass-like lesion in right inguinal area. We performed an emergent exploratory laparotomy under a tentative diagnosis of an incarcerated hernia, but just found a mass in the hernia sac during the operation. Histopathologic examination showed typical findings of the IPT. The patient was followed for 6 months without evidence of local recurrence or distant metastasis. As it is nearly impossible to make a correct judgment prior to operation, surgical resection is usually required for diagnosing IPTs.

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Section: Discussionmentioning

confidence: 99%

A Painful Groin Pseudotumor Mimicked an Incarcerated Hernia

Lin¹,

Huang²,

Hsu³

2016

J Clin Case Rep

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“…The World Health Organization continues to classify inflammatory myofibroblastic tumour as a distinct borderline lesion with uncertainty as to whether it is reactive or neoplastic in nature. 6 IMT was first reported in the lungs and most commonly involves the lung and orbit; it can also occur in almost any location, including the abdomen, retroperitoneum, head and neck, brain and extremities. In the genitourinary tract, IMT is most frequently observed in the bladder, but has also been rarely reported in the kidneys, adrenal, prostate, ureter, epididymis and urethra.…”

Section: Discussionmentioning

confidence: 99%

“…4 Histologically, an IMT includes cells associated with both acute and chronic inflammation, including lymphocytes and plasma cells, myofibroblastic spindle cells, and collagen. 6 Inflammatory myofibroblastic tumour in a female urethra: A rare benign lesion that mimics malignancy case report aslzare et al…”

Section: Discussionmentioning

confidence: 99%

Inflammatory myofibroblastic tumour in a female urethra: A rare benign lesion that mimics malignancy

Aslzare

Jafarian

Ghoreifi

2014

CUAJ

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“…On ecocolor Doppler (or ecopower Doppler), and especially on contrast-enhanced ultrasound examinations, LGMPs may appear as hypervascular nodules. [57][58][59] Computed tomography ( Figure 5) may show either a focal or diffuse bladder-wall thickening and, more rarely, a polypoid mass; the lesion may be hypodense, isodense, or hyperdense and well enhanced after intravenous contrast medium administration. On magnetic resonance imaging, LGMP is characterized by low T1 signal intensity and nonhomogeneous high T2 signal intensity.…”

Section: Imaging Findingsmentioning

confidence: 99%