scholarly journals Late-onset osteosarcoma after onychectomy in a cat

2019 ◽  
Vol 5 (1) ◽  
pp. 205511691984239
Author(s):  
Katrina Breitreiter
Keyword(s):  
Late Onset ◽  
Purulent Discharge ◽  
Bone Fragment ◽  
Cut Edge ◽  
Case Summary ◽  
Thoracic Limb ◽  
History Of ◽  
Phalangeal Bone ◽  
Associated Mass ◽  
Gross Examination

Case summary A 12-year-old neutered male onychectomized Ragdoll cat presented for a 3 day history of swelling and hemorrhagic purulent discharge on the first digit of the left manus. Radiographs revealed fragments of the third phalangeal bone (P3) present in the partially amputated digits with swelling adjacent to the P3 fragment on the first digit of the left manus. Thoracic radiographs revealed no evidence of primary or metastatic neoplasia. Surgery was performed to remove all P3 fragments and the associated swelling on the diseased digit. On gross examination of the excised swelling, a mass was present at the cut edge of P3. The bone fragment and associated mass were submitted for histopathological evaluation. Osteosarcoma was diagnosed. Because neoplastic cells extended to the surgical margins, amputation of the left thoracic limb was performed. The cat recovered from surgery, and survival time at the time of writing was 8 months. Relevance and novel information To our knowledge, this is the first reported case of onychectomy-associated osteosarcoma. Trauma from partial P3 amputation during onychectomy is suspected to have played a role in osteosarcoma development in this case. Malignant transformation may be considered a potential complication of onychectomy achieved by partial P3 amputation.

scholarly journals Cerebral gliosarcoma with perivascular involvement in a cat

2019 ◽  
Vol 5 (2) ◽  
pp. 205511691987978
Author(s):  
Patricia Álvarez ◽  
Annette Wessmann ◽  
Mireia Pascual ◽  
Oriol Comas ◽  
Dolors Pi ◽  
...  
Keyword(s):  
Histopathological Examination ◽  
Septum Pellucidum ◽  
Soft Mass ◽  
Case Summary ◽  
Fluid Attenuated Inversion Recovery ◽  
History Of ◽  
High Degree ◽  
The Brain ◽  
Clinical Mri ◽  
Gross Examination

Case summary A 5-year-old neutered male domestic shorthair cat presented with an 18-month history of facial tics, and progressive general ataxia, weakness, lethargy and anorexia of 2 weeks’ duration. MRI of the brain showed a well-defined heterogeneous hyperintense mass on T1-weighted and T2-weighted images, with central hypointensity in the rostral commissure and septum pellucidum, and perilesional hyperintensity in fluid-attenuated inversion recovery, suggestive of perilesional oedema. Gross examination in a transverse section of the brain at the level of the septum pellucidum revealed a 0.2 cm brown soft mass. Histopathological examination identified a biphasic neoplastic proliferation of mesenchymal and neuroepithelial cell populations. Fusiform cells were predominately distributed in bundles showing a high degree of anisocytosis and marked immune-positive reaction to vimentin immunochemistry, confirming a sarcomatous origin. Additionally, high numbers of astrocytic cells were identified by an intense immunopositive reaction to glial fibrillary acidic protein and negative reaction to oligodendrocyte transcription factor 2 immunochemistry. Vascular invasion of the neoplasia into the wall of a medium branch of the rostral cerebral artery was present (secondary Scherer structures). Based on these characteristics, the tumour was defined as a gliosarcoma. Gliosarcoma is a recognised astrocytoma grade IV anaplastic glial cell tumour with sarcomatous differentiation. Relevance and novel information To our knowledge, this is the first report describing a cerebral gliosarcoma in a cat including clinical, MRI, macroscopic and histopathological features and immunolabelling characteristics.

An Obscure Colon Dilatation and its Underlying Cause: Case Report and Literature Review

2020 ◽  
pp. 1-5
Author(s):  
Anton Stift ◽  
Kerstin Wimmer ◽  
Felix Harpain ◽  
Katharina Wöran ◽  
Thomas Mang ◽  
...  
Keyword(s):  
Case Report ◽  
Sigmoid Colon ◽  
Immunohistochemical Staining ◽  
Late Onset ◽  
Hirschsprung Disease ◽  
Endoscopic Examination ◽  
Case Presentation ◽  
Idiopathic Megacolon ◽  
History Of ◽  
Cells Of Cajal

Introduction: Congenital as well as acquired diseases may be responsible for the development of a megacolon. In adult patients, Clostridium difficile associated infection as well as late-onset of Morbus Hirschsprung disease are known to cause a megacolon. In addition, malignant as well as benign colorectal strictures may lead to intestinal dilatation. In case of an idiopathic megacolon, the underlying cause remains unclear. Case Presentation: We describe the case of a 44-year-old male patient suffering from a long history of chronic constipation. He presented himself with an obscurely dilated large intestine with bowel loops up to 17 centimeters in diameter. Radiological as well as endoscopic examination gave evidence of a spastic process in the sigmoid colon. The patient was treated with a subtotal colectomy and the intraoperative findings revealed a stenotic stricture in the sigmoid colon. Since the histological examination did not find a conclusive reason for the functional stenosis, an immunohistochemical staining was advised. This showed a decrease in interstitial cells of Cajal (ICC) in the stenotic part of the sigmoid colon. Discussion: This case report describes a patient with an idiopathic megacolon, where the underlying cause remained unclear until an immunohistochemical staining of the stenotic colon showed a substantial decrease of ICCs. Various pathologies leading to a megacolon are reviewed and discussed.

Pseudo-Parkinson Disease Secondary to Ritonavir–Buspirone Interaction

2003 ◽  
Vol 37 (2) ◽  
pp. 202-205 ◽  
Author(s):  
Patrick G Clay ◽  
Molly M Adams
Keyword(s):  
Drug Interaction ◽  
Inhibitory Effect ◽  
Hiv Positive ◽  
High Dose ◽  
Resting Tremor ◽  
Case Summary ◽  
History Of ◽  
Drug Drug Interaction ◽  
To Receive

OBJECTIVE: To report a case of Parkinson-like symptoms appearing in a patient after introduction of ritonavir to buspirone therapy. CASE SUMMARY: A 54-year-old HIV-positive white man presented to the clinic with a 2-week history of ataxia, shuffling gait, cogwheel rigidity, resting tremor, and sad affect with masked features. This patient had been receiving high-dose buspirone (40 mg every morning and 30 mg every evening) for 2 years prior to the introduction of ritonavir/indinavir combination therapy (400 mg/400 mg twice daily) 6 weeks prior to initiation of the above symptoms. Buspirone was decreased to 15 mg 3 times daily, ritonavir/indinavir was discontinued, and amprenavir 1200 mg twice daily was added. The patient's symptoms began to subside after 1 week, with complete resolution after about 2 weeks. The patient continued to receive buspirone for an additional 12 months without recurrence of symptoms. DISCUSSION: This is the first reported interaction of buspirone and antiretrovirals. Buspirone, extensively metabolized by CYP3A4, was likely at supratherapeutic levels due to the inhibitory effect of ritonavir and, secondarily, indinavir. The Parkinson-like symptoms developed rapidly and severely, impacted this patient's quality of life, and necessitated significant clinic expenditures to identify this drug–drug interaction. CONCLUSIONS: This case demonstrates a severe drug–drug interaction between buspirone and ritonavir and further demonstrates the need for awareness of the metabolic profile for all agents an HIV-infected patient is receiving.

scholarly journals Locked twins—remote from term: a case report

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Abraham Fessehaye ◽  
Ferid A. Abubeker ◽  
Mekdes Daba
Keyword(s):  
Gestational Age ◽  
Twin Pregnancy ◽  
Caesarian Section ◽  
Obstetric Complication ◽  
Second Stage ◽  
Case Summary ◽  
History Of ◽  
Twin Pregnancies ◽  
Abdominal Delivery ◽  
First Stage Of Labor

Abstract Background Locked twins is a rare and hazardous obstetric complication, which occurs in approximately 1:100 twin pregnancies. One of the known etiologic factors for locked twins is size of the twins. We report a case of chin-to-chin locked twins that occurred at gestational age of 30 weeks pus 6 days. Case summary A 27 years-old primigravida Oromo mother presented with a history of pushing down pain and passage of liquor of 6 hours duration at gestational age of 30 weeks plus 6 days. With a diagnosis of twin pregnancy (first twin non-vertex), abdominal delivery was decided in latent first stage of labor but mother refused caesarian delivery and she was allowed to labor with the hope of achieving a vaginal delivery. In second stage, interlocking twin was encountered and a low vertical cesarean section was done to effect delivery of twins without the need to decapitate the first twin. Conclusion Locked twin is a rare obstetric complication. Whenever it is encountered, successful delivery can be achieved without the need to have decapitation of the first twin during caesarian section.

scholarly journals Clinical, Pathological and Molecular Characteristics of Chilean Patients with Early-, Intermediate- and Late-Onset Colorectal Cancer

Cells ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 631
Author(s):  
Karin Alvarez ◽  
Alessandra Cassana ◽  
Marjorie De La Fuente ◽  
Tamara Canales ◽  
Mario Abedrapo ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Family History ◽  
Age Of Onset ◽  
Late Onset ◽  
Molecular Characteristics ◽  
Family History Of Cancer ◽  
Molecular Features ◽  
Age Of Diagnosis ◽  
History Of ◽  
History Of Cancer

Colorectal cancer (CRC) is the second most frequent neoplasm in Chile and its mortality rate is rising in all ages. However, studies characterizing CRC according to the age of onset are still lacking. This study aimed to identify clinical, pathological, and molecular features of CRC in Chilean patients according to the age of diagnosis: early- (≤50 years; EOCRC), intermediate- (51–69 years; IOCRC), and late-onset (≥70 years; LOCRC). The study included 426 CRC patients from Clinica Las Condes, between 2007 and 2019. A chi-square test was applied to explore associations between age of onset and clinicopathological characteristics. Body Mass Index (BMI) differences according to age of diagnosis was evaluated through t-test. Overall (OS) and cancer-specific survival (CSS) were estimated by the Kaplan–Meier method. We found significant differences between the age of onset, and gender, BMI, family history of cancer, TNM Classification of Malignant Tumors stage, OS, and CSS. EOCRC category was characterized by a family history of cancer, left-sided tumors with a more advanced stage of the disease but better survival at 10 years, and lower microsatellite instability (MSI), with predominant germline mutations. IOCRC has shown clinical similarities with the EOCRC and molecular similarities to the LOCRC, which agrees with other reports.

Ceftriaxone-Induced Acute Pancreatitis

1993 ◽  
Vol 27 (1) ◽  
pp. 36-37 ◽  
Author(s):  
Anthony E. Zimmermann ◽  
Brian G. Katona ◽  
Joginder S. Jodhka ◽  
Richard B. Williams
Keyword(s):  
Acute Pancreatitis ◽  
Abdominal Pain ◽  
Acute Abdominal Pain ◽  
Signs And Symptoms ◽  
Etiologic Agent ◽  
Antibiotic Regimen ◽  
Intravenous Injections ◽  
Case Summary ◽  
Catheter Sepsis ◽  
History Of

OBJECTIVE: To report a case of probable ceftriaxone-induced acute pancreatitis. CASE SUMMARY: A patient with a history of short-bowel syndrome on home total parenteral nutrition developed fever, chills, and right flank pain. She was diagnosed with gram-negative catheter sepsis and prescribed antibiotic therapy to be administered for four weeks. After completion of the first week of therapy, the antibiotic regimen was changed to intravenous injections of ceftriaxone to be given daily at home. Prior to discharge the patient developed acute abdominal pain, leukocytosis, jaundice, and markedly elevated lipase and amylase concentrations consistent with acute pancreatitis. The patient's condition improved upon discontinuation of the ceftriaxone and the remainder of her stay was uneventful. DISCUSSION: There is only one other case report in the literature of probable ceftriaxone-induced pancreatitis. Multiple other medications have been implicated in causing acute pancreatitis. The exact mechanism of this uncommon adverse effect of ceftriaxone is unknown. CONCLUSIONS: There was a temporal relationship between the development of this patient's signs and symptoms and the administration of ceftriaxone. We could not identify any other factors that may have been responsible for the development of her acute pancreatitis. Ceftriaxone should be considered as a possible etiologic agent in patients who present with acute abdominal pain and elevated lipase and amylase concentrations.

scholarly journals Dynamic chronic rectal obstruction causing a severe colonic dilatation in a cat

2017 ◽  
Vol 3 (2) ◽  
pp. 205511691772522
Author(s):  
Sofia García-Pertierra ◽  
Esteban Gonzàlez-Gasch ◽  
Carmen Catalá Puyol ◽  
Jose María Closa Boixeda
Keyword(s):  
Dynamic Compression ◽  
Dynamic Nature ◽  
Referral Centre ◽  
Canal Stenosis ◽  
Case Summary ◽  
Abdominal Radiographs ◽  
History Of ◽  
Colonic Distension ◽  
The Right ◽  
Rectal Obstruction

Case summary A 5-year-old male neutered domestic shorthair cat was presented to our referral centre with a 13 month history of chronic tenesmus due to malunion of the right caudal iliac body. Constipation and pelvic canal stenosis were initially addressed by the referring veterinarian with a right femoral head and neck excision and a right acetabulectomy without observable clinical improvement. At admission, abdominal radiographs revealed severe colonic distension and a narrowed pelvic canal caused by the right proximal femur. Rectal examination and colonography revealed a dynamic compression of the rectum, which worsened with femoral abduction and improved with femoral adduction. A right hindlimb amputation was performed to relieve the obstruction. The cat defaecated 2 days postoperatively and was discharged uneventfully. Neither faecal tenesmus nor dyschaezia were observed over the following 10 months. Relevance and novel information The dynamic nature of the rectal obstruction most likely prevented the development of an irreversible colonic dilatation leading to a megacolon. This is the first report describing a chronic dynamic rectal compression, which was successfully managed with a right hindlimb amputation without the need for subtotal colectomy.

scholarly journals Management of Phantom Limb Pain through Thalamotomy of the Centro-Median Nucleus

2021 ◽  
Vol 13 (4) ◽  
pp. 587-593
Author(s):  
Ramiro A. Pérez de la Torre ◽  
Job J. Rodríguez Hernández ◽  
Ali Al-Ramadan ◽  
Abeer Gharaibeh
Keyword(s):  
Phantom Limb Pain ◽  
Phantom Limb ◽  
Limb Pain ◽  
Surgical Interventions ◽  
Burning Pain ◽  
A Value ◽  
Thoracic Limb ◽  
History Of ◽  
One Year ◽  
The Right

Background: Phantom limb syndrome is defined as the perception of intense pain or other sensations that are secondary to a neural lesion in a limb that does not exist. It can be treated using pharmacological and surgical interventions. Most medications are prescribed to improve patients’ lives; however, the response rate is low. In this case report, we present a case of phantom limb syndrome in a 42-year-old female with a history of transradial amputation of the left thoracic limb due to an accidental compression one year before. The patient underwent placement of a deep brain stimulator at the ventral posteromedial nucleus (VPM) on the right side and removal secondary to loss of battery. The patient continued to have a burning pain throughout the limb with a sensation of still having the limb, which was subsequently diagnosed as phantom limb syndrome. After a thorough discussion with the patient, a right stereotactic centro-median thalamotomy was offered. An immediate response was reported with a reduction in pain severity on the visual analogue scale (VAS) from a value of 9–10 preoperative to a value of 2 postoperative, with no postoperative complications. Although phantom limb pain is one of the most difficult to treat conditions, centro-median thalamotomy may provide an effective stereotactic treatment procedure with adequate outcomes.

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