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Masateru Nagae, Yasuo Mikami, Kentaro Mizuno, Tomohisa Harada, Takumi Ikeda, Hitoshi Tonomura, Ryota Takatori, Hiroyoshi Fujiwara, Toshikazu Kubo
INTRODUCTION: Polymethylmethacrylate (PMMA) cement is useful for spinal reconstruction, but can cause complications including new vertebral fractures, neurological disorders and pulmonary embolism. We report a case in PMMA cement used for spinal reconstruction after tumor curettage dislodged and penetrated the gastrointestinal tract. DIAGNOSES: The patient was diagnosed with a retroperitoneal extragonadal germ cell tumor at age 27 years. After chemotherapy and tumor resection, the tumor remained...
October 2016: Medicine (Baltimore)
Hiroki Sugita, Hideyuki Kuroki, Takahiko Akiyama, Nobuya Daitoku, Rumi Tashima, Hiroshi Tanaka, Shinobu Honda, Masahiko Hirota
INTRODUCTION: In a distal pancreatectomy combined with a distal gastrectomy, the splenic artery and vein must be conserved. However, it is not easy in pure laparoscopic surgery. We performed a hand-assisted laparoscopic spleen-preserving distal pancreatectomy (HALS-SPDP) combined with a laparoscopic distal gastrectomy (LDG) for the treatment of a pancreatic neuroendocrine tumor (NET) with early gastric cancer. PRESENTATION OF CASE: A 67-year-old male was hospitalized with no complaint...
October 8, 2016: International Journal of Surgery Case Reports
Kazuhiro Yokota, Dai Kishida, Hidekazu Kayano, Masahide Yazaki, Yuki Shimada, Yuji Akiyama, Toshihide Mimura
We report the case of a Japanese woman with amyloid light chain (AL) amyloidoma in the abdominal aortic retroperitoneum and mesentery. Irregular soft tissue mass lesions with calcification in the abdominal aortic retroperitoneum and mesentery were initially detected by computed tomography at another hospital. The lesions gradually compressed the duodenum, causing symptoms of bowel obstruction. The patient was clinically diagnosed with retroperitoneal fibrosis, and prednisolone was administered at a dose of 40 mg/day...
2016: Case Reports in Rheumatology
Imen Ben Salha, Shane Zaidi, Jonathan Noujaim, Aisha B Miah, Cyril Fisher, Robin L Jones, Khin Thway
Dedifferentiated liposarcoma (DDL) is a histologically pleomorphic sarcoma, traditionally defined as well-differentiated liposarcoma with abrupt transition to high grade, non-lipogenic sarcoma. It can occur as part of recurrent well-differentiated liposarcoma, or may arise de novo. DDL most frequently occurs within the retroperitoneum, and while it is prone to local recurrence, it usually has a lower rate of metastasis than other pleomorphic sarcomas. We describe a case of retroperitoneal dedifferentiated liposarcoma in a 63-year-old male, who showed MDM2 amplification with fluorescence in situ hybridization, which displayed unusually aggressive behavior, with brain, lung and subcutaneous soft tissue metastases...
September 5, 2016: Rare Tumors
Yusuke Matsuda, Noriko Kimura, Takanobu Yoshimoto, Yoshihiro Sekiguchi, Junzo Tomoishi, Ichiro Kasahara, Yoshihito Hara, Yoshihiro Ogawa
Pheochromocytomas and paragangliomas, which exclusively produce dopamine, are very rare. Herein, we report for the first time a Japanese case of an exclusively dopamine-producing paraganglioma accompanied by detailed immunohistochemical analyses. A 70-year-old Japanese woman was referred to our hospital for functional examination of her left retroperitoneal mass. Her adrenal functions were normal, except for excessive dopamine secretion. After the tumorectomy, her dopamine level normalized. The histopathological diagnosis of the tumor was paraganglioma; this was confirmed by positive immunostaining of chromogranin A (CgA), tyrosine hydroxylase (TH), dopamine β-hydroxylase (DBH), and succinate dehydrogenase gene subunit B (SDHB)...
October 14, 2016: Endocrine Pathology
Kamran Khan, Arun A Mavanur
Mammary myofibroblastoma is a rare, benign, mesenchymal neoplasm that was first described in the breast in 1987. However, extra-mammary-type myofibroblastoma (MTMF) was not described until 2001 as a distinct entity. We report a case of extra-MTMF arising from the retroperitoneum, which was encountered in our clinic. We also completed a review of the literature using PubMed in patients with extra-MTMF.
October 14, 2016: BMJ Case Reports
Junemoe Jeong, Jonghyeok Ko, Hyunjoo Lim, Oh-Kyeong Kweon, Wan Hee Kim
OBJECTIVE: To develop and describe a laparoscopic retroperitoneal access technique, investigate working space establishment, and describe the surgical anatomy in the retroperitoneal space as an initial step for clinical application of retroperitoneal laparoscopy in dogs. STUDY DESIGN: Cadaveric and experimental study. ANIMALS: Cadaveric (n=8) and healthy (n=6) adult dogs. METHODS: The retroperitoneal access technique was developed in 3 cadavers based on the human technique and transperitoneal observation...
October 12, 2016: Veterinary Surgery: VS
Hemonta Kr Dutta, Pronami Borah, Mauchumi Baruah
Extragonadal teratomas are rarely encountered in infants and children. These tumors are reported in retroperitoneum, floor of the mouth, mediastinum, craniofacial region or even in the solid organs of the body. Most of the gluteal teratomas reported in the literature are in fact, lateralized sacrococcygeal teratomas. We are reporting a case of unilateral big gluteal teratoma in a 6-year-old girl. The tumor did not have any connection with the sacrum or coccyx and was successfully removed. Histology showed well-differentiated bowel as well as fetiform structures...
October 2016: Journal of Indian Association of Pediatric Surgeons
Safina Ahmed, Shoaib Naiyar Hashmi
OBJECTIVE: To determine friend leukaemia integration 1 transcription factor protein expression in cases of Ewing sarcoma. METHODS: This retrospective, descriptive study was conducted at the Armed Forces Institute of Pathology, Rawalpindi, Pakistan, and comprised data of diagnosed cases of Ewing sarcoma related to the period from February 2013 to December 2014. Clinico-pathological features, including patient age, gender and site of biopsy were studied. Positivity of immunohistochemical markers such as cluster of differentiation 99(membranous staining) and Friend leukaemia integration 1 transcription factor (nuclear staining) were noted...
October 2016: JPMA. the Journal of the Pakistan Medical Association
Santosh Kumar, Shivanshu Singh, Abhishek Chandna
The retroperitoneum is a closed space harbouring vital organs including the great vessels, kidneys and adrenal glands, ureters, and the ascending and descending colon. Surgical management of retroperitoneal pathologies may need multiorgan resection in order to achieve complete surgical resection while preservation of surrounding organs should be attempted, especially in case of benign tumors. We present a case of 15-year-old girl with an 11 × 6 × 5 cm retroperitoneal ganglioneuroma displacing the right kidney, renal vein, and ureter and abutting the IVC which was excised in toto preserving the right kidney and ureter with careful dissection around the great vessels...
2016: Case Reports in Surgery
Roumina Hasan, Sandeep Kumar, Anuradha Ck Rao, Rajagopal Kadavigere
A 55-year-old woman presented with a mucopurulent sinusal discharge from the right supragluteal region, with symptoms over the previous five months. This abscess began as a slowly swelling growth, which eventually turned into a discharging sinus, and she was diagnosed with a gluteal abscess. The patient underwent incisional drainage, and intra-operatively, the sinus tract could be seen extending to the retroperitoneum. A subsequent CT scan and an MRI of the abdomen revealed a large heterogeneous retroperitoneal cystic mass on the right side of midline, extending inferiorly into the anterior thigh along the iliopsoas...
July 2016: Malaysian Journal of Medical Sciences: MJMS
Benjamin A Farber, Neerav Shukla, Irene Isabel P Lim, Jennifer M Murphy, Michael P La Quaglia
INTRODUCTION: Non-central nervous system (non-CNS) rhabdoid tumors tend to present at a young age and have an extremely aggressive course, with dismal overall survival rates. Inactivation of the tumor suppressor gene SMARCB1 has been shown in rhabdoid tumors regardless of anatomic location, suggesting a common genetic basis. We retrospectively analyzed our institutional experience with non-CNS rhabdoid tumors to determine overall survival and prognostic variables. METHODS: We reviewed records of pediatric patients (age<22y) with non-CNS rhabdoid tumor at our institution between 1980 and 2014...
August 31, 2016: Journal of Pediatric Surgery
Mana Fukushima, Inga-Marie Schaefer, Christopher D M Fletcher
Myolipoma of soft tissue, which was first described by Meis and Enzinger (1991), is a rare benign neoplasm characterized by the admixture of mature adipocytes and well-differentiated smooth muscle cells. Recently, cytogenetic alteration of the HMGA2 gene has been reported in 2 myolipomas. We present the clinicopathologic features of 34 cases of myolipoma of soft tissue, study immunoreactivity for HMGA2, and review the previous literature. In our series, there were 32 women and 2 men, with age at presentation ranging from 35 to 94 years (median, 55 y)...
September 15, 2016: American Journal of Surgical Pathology
Alberto Martínez-Martínez, Jade García-Espinosa
The development of a foreign body granuloma from non-absorbable suture is a relatively uncommon condition, exceptional in the retroperitoneum of patients operated on for colorectal surgery. We report the case of a patient with a history of sigmoid neoplasm showing a retroperitoneal nodule on CT and high activity on PET, mimicking a tumor implant. Pathology found a foreign body granuloma. Foreign body granuloma from suture is a condition that may look identical to tumor relapse or metastatic disease on CT and PET scans, thus requiring pathology confirmation...
September 2016: Revista Española de Enfermedades Digestivas
Silviu Constantinoiu, Ion-Florin Achim, Oana-Eliza Cretu, Tatiana Dumitru, Adrian Constantin, Simona Enache, Ioan Nicolae Mates
Dedifferentiated liposarcoma is a liposarcoma that contains a well-differentiated liposarcoma component juxtaposed to areas of high-grade non-lipogenic sarcoma and was believed to occur from well-differentiated liposarcoma after several years. Dedifferentiated liposarcoma most commonly occurs in the retroperitoneum, while an intraperitoneal location is extremely rare, only seven cases have been reported in literature. Many pathologists recognize that a large number of intra-abdominal poorly differentiated sarcomas are dedifferentiated liposarcomas...
July 2016: Chirurgia
Sun-Young Lee, Jong-Hyun Kim, Dong-Hyu Cho
Paraneoplastic autoimmune multiorgan syndrome (PAMS), also known as paraneoplasic pemphigus, involves the skin, internal organs and mucosa. PAMS-associated mortality may occur as a result of autoantibody formation against internal tumors and their infiltration into organs other than the skin lesions that characterize PAMS. The most common symptoms of PAMS include pain associated with continuous oral ulceration and resistance to pharmacological treatment. The present study reports the case of a 42-year-old female patient who was admitted with an 8-month history of erosive skin lesions within the trunk region, oral mucosa and vaginal mucosa...
September 2016: Experimental and Therapeutic Medicine
Rinaldo Pellicano, Sharmila Fagoonee, Fiorella Altruda, Mauro Bruno, Giorgio M Saracco, Claudio De Angelis
Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are a heterogeneous group of tumors deriving from the gastrointestinal (GI) neuroendocrine system. Since these neoplasms are usually very small, located deeply within the retroperitoneum or into an extramucosal site of the GI tract and, lastly, because they may be multi-sited, radiological imaging modalities, in combination with endoscopy, are the diagnostic workhorses in patients with GEP-NETs. Endoscopic approach is useful for detection, bioptic diagnosis and curative resection of small GEP-NETs of stomach, duodenum, jejuno-ileum, and colon-rectum...
December 2016: Minerva Endocrinologica
İhsan Yıldız, Yavuz Savaş Koca, İbrahim Barut
Foreign body ingestion can be caused by many factors, including hallucination in patients with mental retardation. Most ingested foreign bodies are naturally discharged, though surgical intervention is necessary in some cases. Endoscopic intervention often leads to successful outcome, though open surgery may be required in certain instances. A 29-year-old mentally retarded woman presented to emergency services with a 2-day history of right lumbar pain that increased with movement. Physical examination revealed no specific sign beyond palpable tenderness in the right lumbar region...
July 2016: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
Alessandro Corsi, Mara Riminucci
Heterotopia of liver tissue is uncommon. It has been reported at various sites, more frequently near the orthotopic liver, including gallbladder, hepatic ligaments, omentum, and retroperitoneum, rarely within the diaphragm and the thoracic cavity and never within the head. We report here a 22-year-old patient surgically treated for a maxillary osteosarcoma in which microscopic liver tissue islands were incidentally detected in the respiratory mucosa of the surgical margin. The islands were comprised of well-differentiated HepPar-1 positive hepatocytes and were surrounded by cytokeratin-7 and cytokeratin-19 positive bile duct-like structures...
September 2, 2016: Human Pathology
Guillaume Oldrini, Agnès Leroux, Guillaume Vogin, Maria Rios, Frédéric Marchal, François Sirveaux, Jean-Luc Verhaeghe, Sophie Renard-Oldrini, Grégory Lesanne, Julia Salleron, Philippe Henrot
INTRODUCTION: Suspicious lesions of sarcoma require preoperative biopsies. If surgical biopsies remain the gold standard, radioguided percutaneous microbiopsies are gaining an increasing importance. The purpose of this study was to compare histopathological results of percutaneous biopsies of soft tissues, trunk and retroperitoneal tumors with the histopathological results of operative specimens. METHODS: This is a retrospective study including 84 patients treated in our institution...
September 2, 2016: La Presse Médicale
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