scholarly journals Ileocecal Intussusception in an Adult Secondary to a Colon Adenocarcinoma: A Case Report and Literature Review

2020 ◽  
pp. 1-4
Author(s):  
Carlos Hernández Brito ◽  
Carlos Hernández Brito ◽  
Martha Audelo Guzmán ◽  
Pedro Arredondo Ruiz ◽  
Álvaro Cuauhtémoc Sánchez Trujillo ◽  
...  
Keyword(s):  
Colon Adenocarcinoma ◽  
Distal Segment ◽  
Histopathological Study ◽  
Emergency Laparotomy ◽  
Imaging Studies ◽  
Rectosigmoid Colon ◽  
Loss Of Weight ◽  
Palpable Tumor ◽  
Ileocecal Intussusception ◽  
Cell Dissemination

Intussusception is defined as telescoping of a proximal segment of the gastrointestinal tract into a distal segment caused by an organic lesion usually on the bowel that functions as a guiding point been pulled towards a distal segment due to normal peristalsis. It is rare in adults, and it represents only 5% of all intussusceptions which for the most part has been reported in the rectosigmoid colon and mostly diagnosed during surgery. We present a patient with intermittent abdominal pain and intermittent mild symptoms of bowel obstruction who reveals in imaging studies an ileocecal intussusception and due to his age, loss of weight, and a palpable tumor, a malignancy as the cause of intussusception was suspected. The histopathological study reported a colon adenocarcinoma. Although it is possible to reduce an intussusception, this should be avoided in adults due to a high malignancy rate and a perforation risk of the piece that might cause tumor cell dissemination. Taking in consideration what has been reported in literature and the colon cancer epidemiology, we should always keep in mind the possibility of a malignant tumor in a colonic intussusception finding, regardless if it is diagnosed during preoperative by imaging studies in a scheduled patient or if it is found during an emergency laparotomy.

scholarly journals Peritoneal gliomatosis: a case report

2021 ◽  
Vol 8 (9) ◽  
pp. 2789
Author(s):  
Enrique Vaca ◽  
Claudia V. Ventura ◽  
Jefferson Nieves ◽  
Camilo Acuña ◽  
Daniel A. Rivera
Keyword(s):  
Clinical Presentation ◽  
Mature Teratoma ◽  
Abdominal Distension ◽  
Immature Teratoma ◽  
Emission Tomography ◽  
Histopathological Study ◽  
Imaging Studies ◽  
Positron Emission ◽  
Elevated Tumor Marker ◽  
Ovary Tumor

Peritoneal gliomatosis is the mature neuroglial tissue in peritoneum, this is commonly associated with immature teratoma. Can be associated with ascites alone or ascites and pleural effusion in which case it is called pseudo Meigs syndrome, the lymph node invasion has been described. In the imaging studies such computed tomography they can be show as multiple peritoneal nodules, the positron emission tomography has shown utility in cases of doubt of recurrence of mature teratoma without evidence of primary tumor with elevated tumor marker. The initial treatment depends on the treatment of the teratoma, reserving the surgical treatment of the peritoneal gliomatosis in the presence of complications related to the implants. A 21-year-old woman without chronic degenerative disease story with clinical presentation of abdominal distension, a CT scan is performed that shows a right ovary tumor; a laparotomy was performed in which ascites and peritoneal nodules were evidenced suggesting the presence of carcinomatosis. Histopathological study demonstrated peritoneal gliomatosis.

scholarly journals Atraumatic Splenic Rupture is a Rare Complication of Acute Myeloid Leukemia: A Case Report and Literature Review

2021 ◽  
Keyword(s):  
Abdominal Pain ◽  
Splenic Rupture ◽  
Rare Complication ◽  
Bone Marrow Aspiration ◽  
Underlying Disease ◽  
Free Fluid ◽  
Histopathological Study ◽  
Emergency Laparotomy ◽  
Limited Information ◽  
Atraumatic Splenic Rupture

Introduction: Atraumatic Splenic Rupture (ASR) is a rare but life-threatening clinicopathological phenomenon with limited information on patient features, occurrence, or etiology. Case presentation: A 48-year-old man with no history of the underlying disease presented to the emergency department with abdominal pain. He was admitted with leukocytosis 145x103/µl, hemoglobin 6.4 g/dl, and platelets 15x103/µl, ESR 89mm/h, D-Dimer 1043ng/FEU ml. Sputum test (PCR) ruled out SARS-CoV-2 infection. Due to peripheral blood smear and bone marrow aspiration/biopsy, AML was diagnosed for the patient. On the third day of hospitalization, the patient's abdominal pain intensifies. Ultrasound revealed medium free fluid inside the abdomen and pelvis. The patient was transferred to the operating room to undergo an emergency laparotomy. There was a large hematoma in the spleen with a rupture in its posterior surface. Splenectomy was performed. The histopathological study of the spleen showed leukemic involvement, capsular ruptures, and subcapsular hematomas. Discussion: ASR is an uncommon and lethal complication that is seen in infectious diseases (mainly mononucleosis) and hematological diseases (mainly malignant homeopathies) in more than half of cases. Mortality is approximately around 20%. Some deaths occur before the diagnosis is confirmed, while others occur after surgery, as a result of delayed management and poor patient status. Conclusion: ASR can occur for a variety of reasons, including non-traumatic or idiopathic factors. In the absence of significant trauma, emergency physicians should be aware that splenic rupture can occur. ASR is more likely to present with symptoms similar to the underlying disease.

scholarly journals Primary Ewing sarcoma of squamous temporal bone with intracranial extension: a case report

2016 ◽  
Vol 30 (2) ◽  
pp. 296-299 ◽  
Author(s):  
Somil Jaiswal ◽  
Pooja Jaiswal ◽  
Bal Krishna Ojha ◽  
Anil Chandra
Keyword(s):  
Temporal Bone ◽  
Ewing Sarcoma ◽  
Intracranial Extension ◽  
Histopathological Study ◽  
Eastern India ◽  
Imaging Studies ◽  
Sporadic Cases ◽  
The Right ◽  
Radio Chemotherapy

Abstract Primary Cranial Ewing sarcoma (ES) is rare and that of temporal bone is even rarer entity. Only a few sporadic cases have been reported and no such case has been reported from Eastern India In this report we describe a case of 18 yrs old male with primary cranial ES of squamous temporal bone involving intracranial and extracranial compartment. The patient presented with swelling in zygomatic fossa and imaging studies showed a mass originating in the right temporal bone. Gross total resection of the tumor was done and sent for histopathological study. The case was referred for radio-chemotherapy and had no recurrence up to eight months of follow up.

scholarly journals Fecal Impaction in the Rectum and Rectosigmoid Colon Secondary to Sunflower Seed Ingestion

2021 ◽  
Vol 2021 ◽  
pp. 1-3
Author(s):  
Alexander Lyons ◽  
Jamie Lee ◽  
Kristen Cares
Keyword(s):  
Sunflower Seed ◽  
Distal Segment ◽  
The United States ◽  
Fecal Impaction ◽  
Sunflower Seeds ◽  
Fecal Material ◽  
Rectosigmoid Colon ◽  
Stool Softener ◽  
Abdominal Radiographs ◽  
Seed Ingestion

A 35-month-old male who had eaten a bag of sunflower seeds initially presented to the emergency department (ED) with visible seeds in the anus and was discharged home with a stool softener after manual disimpaction. He then returned to the hospital 2 days later, and abdominal radiographs confirmed significant fecal material within the rectum and rectosigmoid colon. After failed oral and rectal laxative therapy attempts, subsequent disimpaction under anesthesia revealed an undigested sunflower seed bezoar in the rectum extending to the distal segment of his sigmoid colon. This case highlights the dangers and possible complications of seed ingestion even in small quantities in children along with the pathophysiology of impaction. This is one of the youngest cases reported in the United States involving the rectum and rectosigmoid colon with a sunflower bezoar.

scholarly journals Intussusception of Rectosigmoid Colon Cancer Mimicking a Pedunculated Tumor

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Susumu Saigusa ◽  
Masaki Ohi ◽  
Hiroki Imaoka ◽  
Tadanobu Shimura ◽  
Yasuhiro Inoue ◽  
...  
Keyword(s):  
Low Anterior Resection ◽  
Anal Verge ◽  
Digital Rectal Examination ◽  
Colon Adenocarcinoma ◽  
Peritoneal Reflection ◽  
Rectosigmoid Colon ◽  
Palpable Mass ◽  
Postoperative Course ◽  
Pedunculated Tumor

Intussusception in adults is a rare phenomenon involving the colon in approximately 20% of cases. A 65-year-old man was hospitalized with anorexia, anemia, dehydration, and melena. Digital rectal examination revealed a palpable mass approximately 5 cm from the anal verge. The mass moved between the rectosigmoid colon and the rectum below the peritoneal reflection during radiographic examinations and during sigmoidoscopy. We strongly suspected a rectosigmoid pedunculated tumor and performed a low anterior resection. Intraoperatively we observed intussusception of the rectosigmoid colon with easy manual reduction. The tumor was palpable in the rectosigmoid colon. The postoperative course was uneventful. This case illustrates intussusception of a rectosigmoid type 1 colon adenocarcinoma mimicking a pedunculated tumor.

scholarly journals Cellular uptake and imaging studies of glycosylated silica nanoprobe (GSN) in human colon adenocarcinoma (HT 29 cell line)

2013 ◽  
pp. 3209 ◽  
Author(s):  
Bita Mehravi ◽  
Mostaar ◽  
Mehdi Shafiee Ardestani ◽  
Ghalandarlaki ◽  
Amanlou Massoud ◽  
...  
Keyword(s):  
Cell Line ◽  
Cellular Uptake ◽  
Colon Adenocarcinoma ◽  
Human Colon ◽  
Imaging Studies ◽  
Ht 29 ◽  
Human Colon Adenocarcinoma

scholarly journals A suspected insulinoma with the unexpected histopathological finding of a nesidioblastosis – A case report and literature review

2020 ◽  
pp. 169
Author(s):  
Keyword(s):  
Histopathological Examination ◽  
Frozen Section ◽  
Pancreatic Insufficiency ◽  
Hyperinsulinemic Hypoglycemia ◽  
Histopathological Study ◽  
Imaging Studies ◽  
Case Presentation ◽  
Glucose Levels ◽  
Hypervascular Lesion ◽  
Level Of Consciousness

Introduction: Nesidioblastosis is a hyperplasia of the beta cells that causes persistent hyperinsulinemic hypoglycemia, unfortunately, it is difficult to diagnose through imaging studies. Case presentation: A 68-year-old woman with palpitations, diaphoresis, dizziness and alterations in the level of consciousness that improve with food intake. Laboratories: glucose 35.0 mg/dl, insulin 12.5 mUI/ml, proinsulin 14.1 pmol/L and peptide C 2.55 ng/ml. Octreoscan reveals an abnormal epigastric uptake area and the tomography shows a focal hypervascular lesion in pancreatic body of 12×11 mm. A distal pancreatectomy was performed without palpating the tumor in transoperative period, and a diffuse nesiodioblastosis was reported in the histopathological study. The patient persists with hypoglycemia and an additional pancreatic resection was performed, resecting 90% of the organ. Although an insulinoma was not located in the piece, an area surrounded by connective tissue was observed where islet hyperplasia was more accentuated. Discussion: The pathophysiology of nesidioblastosis is unknown, its main differential diagnosis is insulinoma and this should be suspected when the tumor can not be identified. Most agree that a pancreatectomy that involves 60-80% of the total organ can control glucose levels with low risk of diabetes and pancreatic insufficiency. Conclusion: The nesidioblastosis should be suspected when a hyperinsulinemic hypoglycemia is difficult to control and when a tumor can not be identified. The extension of the pancreatectomy should be individualized and if an insulinoma is not localized and a nesidioblastosis is suspected, an intraoperative histopathological examination with frozen section evaluation for the margins could determine the extent of pancreatectomy.

Surface ultrastructure of danazol treated rat endometrium: A SEM study

1983 ◽  
Vol 41 ◽  
pp. 556-557
Author(s):  
R.P. Apkarian ◽  
J.S. Sanfilippo
Keyword(s):  
Cross Sections ◽  
Reproductive Tract ◽  
Preliminary Investigation ◽  
Breast Disease ◽  
Distal Segment ◽  
Uterine Horn ◽  
Female Reproductive Tract ◽  
Ultrastructural Changes ◽  
Cycle Phase ◽  
Sprague Dawley

The synthetic androgen danazol, is an isoxazol derivative of ethisterone. It is utilized in the treatment of endometriosis, fibrocystic breast disease, and has a potential use as a contraceptive. A study was designed to evaluate the ultrastructural changes associated with danazol therapy in a rat model. The preliminary investigation of the distal segment of the rat uterine horn was undertaken as part of a larger study intended to elucidate the effects of danazol on the female reproductive tract.Cross-sections (2-3 mm in length) of the distal segment of the uterine horn from sixteen Sprague-Dawley rats were prepared for SEM. Ten rats in estrus served as controls and six danazol treated rats were noted to have alterations of the estrus cycle i.e. a lag in cycle phase or noncycling patterns. Specimens were fixed in 3% glutaraldehyde in 0.05M phosphate buffer containing CaCl2 at pH 7.0-7.4 and chilled to 4°C. After a brief wash in distilled water, specimens were passed through a graded series of ethanol, critical point dryed in CO2 from absolute ethanol, and coated with 6nm Au. Observations were made with an IS1-40 SEM operated at 15kV.

Differentiation Processes of the Ocellar Retina of the Honeybee (Apis Mellifera L.)

1990 ◽  
Vol 48 (3) ◽  
pp. 430-431
Author(s):  
Maria Anna Pabst
Keyword(s):  
Apis Mellifera ◽  
Distal Part ◽  
Cell Layer ◽  
Single Layer ◽  
Photoreceptor Cells ◽  
Distal Segment ◽  
Compound Eyes ◽  
Thin Sections ◽  
Ultrastructural Studies ◽  
Adult Worker

In addition to the compound eyes, honeybees have three dorsal ocelli on the vertex of the head. Each ocellus has about 800 elongated photoreceptor cells. They are paired and the distal segment of each pair bears densely packed microvilli forming together a platelike fused rhabdom. Beneath a common cuticular lens a single layer of corneagenous cells is present.Ultrastructural studies were made of the retina of praepupae, different pupal stages and adult worker bees by thin sections and freeze-etch preparations. In praepupae the ocellar anlage consists of a conical group of epidermal cells that differentiate to photoreceptor cells, glial cells and corneagenous cells. Some photoreceptor cells are already paired and show disarrayed microvilli with circularly ordered filaments inside. In ocelli of 2-day-old pupae, when a retinogenous and a lentinogenous cell layer can be clearly distinguished, cell membranes of the distal part of two photoreceptor cells begin to interdigitate with each other and so start to form the definitive microvilli. At the beginning the microvilli often occupy the whole width of the developing rhabdom (Fig. 1).

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