Multiseptated Cystic Mass Research Articles

The Recurrent Psoas Abscess Caused by Two Different Pathogens - A Case Report -

We report a case of a recurrent psoas abscess caused by two different pathogens. The abdominal CT scans revealed a multiseptated cystic mass along the right psoas-iliacus muscle. The patient was treated with antibiotics treatment in combination with CT-guided percutaneous aspiration and drainage using a catheter. The microbiological examination revealed Klebsiella pneumoniae. Six months later, the patient presented with anorexia, malaise, epigastric pain, lower back pain and fever of 37.8oC for a one-week duration. The abdominal CT scans revealed an abscess cavity on the inferior side of the right psoaos-iliacus muscle. This was accompanied by retrocecal appendicitis and a periappendiceal abscess. Magnetic resonance imaging of the pelvis showed that the psoas abscess was located on the right psoas-iliacus muscle. We performed an appendectomy and laparotomy. Subsequently, the culture yielded Escherichia coli in the psoas abscess. To our knowledge, this is the first case of a recurrent psoas abscess caused by two different pathogens.

Unusual Presentation of Cystic Lymphangioma of the Gallbladder

Cystic lymphangioma of the gallbladder is quite a rare tumor with only a few cases having been reported in the literature. We describe here a rare case of cystic lymphangioma of the gallbladder, which was unusual in that the patient presented with biliary pain and an abnormal liver test. Ultrasonography and computed tomography of the abdomen showed a multi-septated cystic mass in the gallbladder fossa and an adjacent compressed gallbladder. Endoscopic retrograde cholangiography showed there was no communication between the bile tract and the lesion, and there were no other abnormal findings with the exception of a laterally compressed gallbladder. After performing endoscopic sphincterotomy, a small amount of sludge was released from the bile duct. The histological findings were consistent with a cystic lymphangioma originating from the subserosal layer of the gallbladder. This unusual clinical presentation of a gallbladder cystic lymphangioma was attributed to biliary sludge, and this was induced by gallbladder dysfunction that was possibly from compression of the gallbladder due to the mass.

Renal Cell Carcinoma: Unusual Imaging Manifestations

Unusual radiologic manifestations of a renal cell carcinoma (RCC) can present a diagnostic challenge. These manifestations include bilateral synchronous multifocal tumors, a small RCC with synchronous adrenal metastasis, and RCC associated with bulky abdominal lymphoma. Less common manifestations include multiseptated cystic carcinoma simulating a moderately complex renal cyst at ultrasonography (US), paraaortic metastatic adenopathy as the only sign of an undetectable primary renal neoplasm, RCC causing a large arteriovenous fistula, RCC simulating angiomyolipoma, and a nonfunctioning kidney due to transparenchymal renal propagation of cancer associated with a tumor thrombus occluding the renal vein. Radiologists should be aware of the possibility of tumor multifocality or of adrenal metastases from a high-grade small renal tumor, as well as of the association of RCC with lymphoma. They should also be aware of the importance of following up a multiseptated cystic mass found at US or a Bosniak category IIF renal cyst, since these lesions can serve as early indicators of cystic carcinoma. Because the clinical implications of and therapeutic strategies for RCC vary depending on imaging characterization of the nature and extent of the disease, familiarity with its more unusual radiologic manifestations facilitates accurate diagnosis and management.

Cystic Lymphangioma Arising from the Mesoappendix: A Case Report

Intra-abdominal lymphangiomas are a rare entity. We report a case of cystic lymphangioma arising from the mesoappendix of a 21-year-old female patient. Barium enema examination revealed a pliable submucosal lesion at the cecal base, without contrast filling in the appendiceal lumen. US and CT demonstrated a multiseptated cystic mass in the pericecal and periappendiceal areas.

Prenatal magnetic resonance imaging assisting in differentiating between large degenerating intramural leiomyoma and complex adnexal mass during pregnancy

We present an unusual case in which a 36-year-old patient was referred due to increasing upper left quadrant abdominal pain and a possible left adnexal mass at 22 weeks' gestation. Ultrasonography demonstrated a multiseptated cystic mass, with solid components measuring 12 cm in diameter. A thin sonolucency was thought to separate the mass from the uterus and thus the mass was considered consistent with an adnexal mass, possibly a mucinous cystadenoma. A large degenerating leiomyoma could not be ruled out with certainty and magnetic resonance (MR) imaging was performed which depicted a thin band of myometrium encompassing the complex mass and was therefore diagnostic of a degenerating uterine leiomyoma. We discuss the contribution of MR imaging in the noninvasive diagnosis of undetermined solid pelvic masses visualized ultrasonographically. J. Matern.-Fetal Med. 9:186–189, 2000. © 2000 Wiley-Liss, Inc.

Desmoplastic Infantile Ganglioglioma: A Case Report

Desmoplastic infantile ganglioglioma is an uncommon variety of ganglioglioma that shows evidence of glial andganglionic differentiation accompanied by an extreme desmoplastic reaction. A 16-month-old girl was ad-mitted witha six-day history of left hemiparesis. MR imaging demonstrated a large multiseptated cystic mass, with a solidportion, in the white matter of the right frontotemporoparietal lobe. After contrast injections, the solid portionwas clearly enhanced. The presence of desmoplastic infantile ganglioglioma was confirmed by surgical resection. Wedescribe the characteristic radiologic and pathologic features of desmoplastic infantile ganglioglioma, andinclude a a review of the literature.

Pseudoascites: Unusual presentation of omental cyst

An unusual case of omental cyst is described. The child initially presented with a unilocular intraperitoneal fluid collection on CT. After paracentesis, CT showed freely layering peritoneal fluid, with eventual complete resolution of fluid. CT eight months later demonstrated re-appearance of a multi-septated cystic mass. At surgery, an omental cyst was found.