scholarly journals Gastric Calcifying Fibrous Tumour

2006 ◽  
Vol 20 (7) ◽  
pp. 487-489 ◽  
Author(s):  
Tan Attila ◽  
Dean Chen ◽  
Geoffrey W Gardiner ◽  
Theadore W Ptak ◽  
Norman E Marcon
Keyword(s):  
Smooth Muscle ◽  
Stomach Wall ◽  
Review Of The Literature ◽  
Gastrointestinal Stromal Tumours ◽  
Endoscopic Appearance ◽  
Ultrasound Findings ◽  
Mesenchymal Tumours

Intramucosal gastric tumours are most commonly found to be gastrointestinal stromal tumours or leiomyomas (smooth muscle tumours); however, a variety of other uncommon mesenchymal tumours can occur in the stomach wall. A rare benign calcifying fibrous tumour is reported and the endoscopic appearance, ultrasound findings and morphology are documented. A review of the literature found only two similar cases.

scholarly journals Bladder perivascular epithelioid cell neoplasm: The importance of immunohistochemistry in the diagnosis of an unusual neoplasm

2021 ◽  
Vol 9 ◽  
pp. 2050313X2110008
Author(s):  
Solange De Noon ◽  
Benjamin Ayres ◽  
Uday Patel ◽  
Rami Issa ◽  
Colan Maxwell Ho-Yen
Keyword(s):  
Differential Diagnosis ◽  
Epithelioid Cell ◽  
Review Of The Literature ◽  
Histological Features ◽  
Perivascular Epithelioid Cell Neoplasms ◽  
Perivascular Epithelioid Cell ◽  
Organ Systems ◽  
Cell Neoplasm ◽  
Key Features ◽  
Mesenchymal Tumours

Perivascular epithelioid cell neoplasms represent a group of uncommon mesenchymal tumours with as yet undiscovered benign counterpart. Although perivascular epithelioid cell neoplasms have been described arising in most organ systems as well as in soft tissue and bone, only a small number of perivascular epithelioid cell neoplasms have been reported in the bladder. To date, there is no agreed system for predicting the behaviour of these tumours. We describe a case of a perivascular epithelioid cell neoplasm of the bladder arising in a 57-year-old male and initially diagnosed on biopsy and present a review of the literature focussing on the pathological differential diagnosis and the importance of key histological features in conjunction with a broad immunohistochemical panel. This case report highlights the key features of bladder perivascular epithelioid cell neoplasms that distinguishes these rare neoplasms from other bladder lesions.

Uterine-like Mass With Features of an Extrauterine Adenomyoma Presenting 22 Years After Total Abdominal Hysterectomy–Bilateral Salpingo-oophorectomy: A Case Report and Review of the Literature

2005 ◽  
Vol 129 (8) ◽  
pp. 1041-1043 ◽  
Author(s):  
Rachel Redman ◽  
Edward J. Wilkinson ◽  
Nicole A. Massoll
Keyword(s):  
Smooth Muscle ◽  
Case Report ◽  
Benign Tumor ◽  
Broad Ligament ◽  
Total Abdominal Hysterectomy ◽  
Abdominal Hysterectomy ◽  
Rare Entity ◽  
Review Of The Literature ◽  
Hormonal Stimulation ◽  
Pelvic Organs

Abstract Adenomyoma is a benign tumor composed of smooth muscle and benign endometrium. These tumors typically originate within the uterus. An extrauterine adenomyoma is a rare entity. We report a uterine-like mass consistent with an extrauterine adenomyoma presenting 22 years following a total abdominal hysterectomy and bilateral salpingo-oophorectomy. The mass was pear-shaped with uterine-type smooth muscle and a cavity lined by functional endometrial glands and stroma. To our knowledge, only 4 other cases of an extrauterine uterine-like mass are reported in the literature. Three involved the ovary, while one was located adjacent to the broad ligament with normal pelvic organs. Although none of these other uterus-like masses were described as adenomyomas with uterine-like features, the histologic findings are strikingly similar. An understanding of the müllerian system suggests that either an embryologic malformation or a differential multipotentiality existing in the subcoelomic tissues in response to hormonal stimulation results in a supernumerary müllerian structure like a uterus, as observed in this case. The presence of endometrial glands and stroma in the mass confirms that the tissues in this mass are hormonally responsive. It is most likely that this uterine-like mass arose from the tissues of the secondary müllerian system in response to estrogenic stimulation.

Expression of HSP90 in gastrointestinal stromal tumours and mesenchymal tumours

2010 ◽  
Vol 56 (6) ◽  
pp. 694-701 ◽  
Author(s):  
Gu Hyun Kang ◽  
Eui Jin Lee ◽  
Ki Taek Jang ◽  
Kyoung-Mee Kim ◽  
Cheol Keun Park ◽  
...  
Keyword(s):  
Gastrointestinal Stromal Tumours ◽  
Mesenchymal Tumours

scholarly journals Gastrointestinal Stromal Tumour with Synchronous Bone Metastases: A Case Report and Literature Review

2017 ◽  
Vol 10 (1) ◽  
pp. 66-76 ◽  
Author(s):  
Philippe Rochigneux ◽  
Lénaig Mescam-Mancini ◽  
Delphine Perrot ◽  
Erwan Bories ◽  
Laurence Moureau-Zabotto ◽  
...  
Keyword(s):  
Case Report ◽  
Partial Response ◽  
Literature Review ◽  
Bone Metastases ◽  
Unusual Case ◽  
Gastrointestinal Stromal Tumour ◽  
Gastric Gist ◽  
Gastrointestinal Stromal Tumours ◽  
Exon 11 ◽  
Mesenchymal Tumours

Gastrointestinal stromal tumours (GISTs) are mesenchymal tumours of the digestive tract, derived from Cajal interstitial cells. Bone metastases are very rare, and there is no consensus regarding their treatment. Here, we present the unusual case of a 66-year-old man with a gastric GIST with synchronous bone and liver metastases, fully documented at the pathological and molecular levels with a KIT exon 11 mutation. After 9 months of imatinib, the scanner showed a 33% partial response of target lesions. We also review the literature and describe the characteristics, treatment, and outcome of all cases previously reported.

Adenomyoma Arising in a Meckel Diverticulum: Case Report and Review of the Literature

2000 ◽  
Vol 3 (5) ◽  
pp. 497-500 ◽  
Author(s):  
Jorge L. Yao ◽  
Hong Zhou ◽  
Kevin Roche ◽  
Babu S. Bangaru ◽  
Howard Ginsburg ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Small Intestine ◽  
Case Report ◽  
Young Patient ◽  
Signs And Symptoms ◽  
Histologic Examination ◽  
Meckel Diverticulum ◽  
Review Of The Literature ◽  
Pancreatic Heterotopia

We report a case of adenomyoma of the small intestine arising in a Meckel diverticulum. The patient was a 22-month-old boy who presented with signs and symptoms of intussusception. At surgery, a Meckel diverticulum was found and removed. On histologic examination, a tumor consisting of dilated cystic glands and smooth muscle bundles was identified. A diagnosis of adenomyoma arising in a Meckel diverticulum was made. A review of the literature showed that only six other pediatric cases of adenomyoma of the small intestine have been reported. The presence of an adenomyoma in a young patient within a Meckel diverticulum favors the view that adenomyomas are a variant of pancreatic heterotopia.

scholarly journals Gastrointestinal Schwannoma: An Unusual Colonic Lesion Mimicking Adenocarcinoma

2010 ◽  
Vol 24 (4) ◽  
pp. 233-236 ◽  
Author(s):  
Brent K Wilde ◽  
Jenna-Lynn Senger ◽  
Rani Kanthan
Keyword(s):  
Smooth Muscle ◽  
Spindle Cell ◽  
Therapeutic Strategies ◽  
Accurate Diagnosis ◽  
Colonic Adenocarcinoma ◽  
Gastrointestinal Stromal Tumours ◽  
Colonic Lesion ◽  
S 100 ◽  
Bowel Lesion ◽  
Diffuse Positivity

Gastrointestinal schwannoma is a rare, benign pathological entity that can mimic colonic adenocarcinoma and cause diagnostic dilemmas for treatment. A case of a 68-year-old woman with colonic adenocarcinoma who was discovered to have an incidental synchronous bowel lesion that proved to be a gastrointestinal schwannoma and not a synchronous adenocarcinoma is described. Gastrointestinal schwannomas are uncommon in the colorectal region; they are most often located in the stomach. These spindle cell lesions are distinct from gastrointestinal stromal tumours because the tumour cells have a distinct immunophenotype, with strong diffuse positivity for S-100, glial fibrillary acidic protein and vimentin, and corroborative negative staining of CD34, CD117 and smooth muscle markers. Accurate diagnosis and recognition of this benign entity is, therefore, of immense clinicopathological value for accurate planning of therapeutic strategies.

scholarly journals A Rare Case of Life-Threatening Bleeding Caused by a Jejunal GIST

2019 ◽  
pp. 1-2
Author(s):  
Aloka Liyanage ◽  
Aloka Liyanage ◽  
R Kalaiselvan ◽  
R Rajaganeshan ◽  
S P B Thalgaspitiya
Keyword(s):  
Rare Case ◽  
Haemorrhagic Shock ◽  
Gi Tract ◽  
Gastrointestinal Stromal Tumours ◽  
Cross Sectional ◽  
Male Preponderance ◽  
Cross Sectional Imaging ◽  
Life Threatening ◽  
Intermittent Bleeding ◽  
Mesenchymal Tumours

Gastrointestinal Stromal Tumours (GISTs) are rare mesenchymal tumours that are specific to GI tract. GISTs usually associated with advanced age and have a slight male preponderance. GISTs are commonly found in stomach. Jujunal GISTs are the rarest and account for about 0.1-3% of all GI tumours [1]. The most common clinical manifestation of symptomatic GISTs includes intermittent bleeding due to mucosal ulceration. Massive, life threatening gastrointestinal (GI) bleeding is a rare occurrence. We report a rare case of bleeding Jejunal GIST in a 32-year-old female who presented with haemorrhagic shock that required resuscitative laparotomy. Histopathology and immunohistochemistry confirmed the tumour to have features of GIST with clear margins and post-operative cross-sectional imaging excluded any metastatic deposits.

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