Hypernatremia in a Cat with Toxoplasma-Induced Panencephalitis

2016 ◽  
Vol 52 (1) ◽  
pp. 63-67 ◽  
Author(s):  
Christiane Weingart ◽  
Achim D. Gruber ◽  
Mathias Brunnberg ◽  
Barbara Kohn
Keyword(s):  
Pituitary Gland ◽  
Diabetes Insipidus ◽  
Water Intake ◽  
Poor Prognosis ◽  
Histopathological Examination ◽  
Clinical Signs ◽  
Imaging Studies ◽  
Laboratory Examination ◽  
Neurological Signs

A 12 yr old female neutered Carthusian crossbreed cat was presented due to progressive neurological signs. Clinical signs included dehydration, stupor, and anisocoria. Laboratory examination revealed severe hypernatremia, azotemia, hyperglobulinemia, and an erythrocytosis. Clinical signs and hypernatremia suggested an intracranial process. Imaging studies revealed a loss of structure in the cerebrum, hypothalamus, and pituitary gland. Due to a poor prognosis, the cat was euthanatized. Histopathological examination revealed a subacute granulomatous and necrotizing panencephalitis with Toxoplasma-typical protozoa. The Toxoplasma-induced dysfunction of the hypothalamus and pituitary gland led to diabetes insipidus, which was, in combination with insufficient water intake, the most likely cause for the hypernatremia.

scholarly journals The First Report of Elaphostrongylus cervi Infection in Two Imported Wapitis (Cervus canadensis) in Slovenia

2022 ◽  
Vol 9 (1) ◽  
pp. 19
Author(s):  
Petra Bandelj ◽  
Polona Juntes ◽  
Gorazd Vengušt ◽  
Diana Žele Vengušt
Keyword(s):  
Cross Sections ◽  
Cervus Elaphus ◽  
Red Deer ◽  
Histopathological Examination ◽  
Clinical Signs ◽  
Small Ruminants ◽  
Neurological Signs ◽  
Nematode Parasites ◽  
Cervus Canadensis ◽  
The Brain

This study describes two female wapitis (Cervus canadensis) with neurological signs associated with an Elaphostrongylus cervi (E. cervi) infection. The original host of the nematode parasite is the Eurasian red deer (Cervus elaphus), although other cervids and small ruminants may also be affected. The two wapitis imported from Canada were kept in an enclosure with the Slovenian red deer herd. After developing debilitating neurological signs, the wapitis were euthanized and examined for possible causes. A histopathological examination of the brain of the first wapiti revealed severe diffuse perivascular meningoencephalitis with chronic vasculitis, and some cross-sections of nematodes were found in the leptomeninges. A necropsy of the second wapiti revealed severe pachymeningitis and leptomeningitis, where several adult nematode parasites were found. E. cervi was confirmed by molecular methods. The prevalence of E. cervi in the European red deer population is high, but no study has been conducted to assess its prevalence in Slovenia. This was the first confirmation of E. cervi in Slovenia and the first infection with this parasite described in Europe in a wapiti. Elaphostrongylus cervi should also be considered as a differential diagnosis in Europe for all ruminants grazing on pastures frequented by red deer and showing neurological clinical signs.

Primary cardiac hemangiosarcoma in a dog – case report

2018 ◽  
Vol XXIII (134) ◽  
pp. 58-66
Author(s):  
Tayane Oliveira de Andrade ◽  
Carla F. P. de Moura Carvalho ◽  
Flavio Guilherme Costa Lima ◽  
Cintia Silva Corrêa da Veiga
Keyword(s):  
Heart Failure ◽  
Poor Prognosis ◽  
Genetic Factors ◽  
Histopathological Examination ◽  
Clinical Signs ◽  
Cardiac Tumors ◽  
Cardiac Neoplasms ◽  
Initial Stage ◽  
The Right ◽  
Therapeutic Alternatives

Cardiac tumors are uncommon in dogs. Their etiology is unknown, and it is believed that genetic factors may have an influence on the appearance of this type of neoplasia. At the initial stage, they do not cause relevant clinical signs, but as the primary tumor progresses, cardiac function is affected. These tumors may be confused with congestive heart failure. Hemangiosarcoma is one of the most frequent cardiac neoplasms and may have several locations, but it usually affects the right atrium. Cardiac neoplasms do not usually metastasize, but have poor prognosis for patients. Therapeutic alternatives, when possible, include surgery and chemotherapy. The objective of the present study was to report a case of primary cardiac hemangiosarcoma in an eight-year-old Dachshund bitch, presenting the clinical alterations found, the complementary exams performed and the final diagnostic confirmation through necropsy and histopathological examination.

Gamma knife surgery of the pituitary: new treatment for thalamic pain syndrome

2005 ◽  
Vol 102 (Special_Supplement) ◽  
pp. 38-41 ◽  
Author(s):  
Motohiro Hayashi ◽  
Takaomi Taira ◽  
Taku Ochiai ◽  
Mikhail Chernov ◽  
Yuichi Takasu ◽  
...  
Keyword(s):  
Pituitary Gland ◽  
Diabetes Insipidus ◽  
Gamma Knife ◽  
Pain Syndrome ◽  
Pain Reduction ◽  
Gamma Knife Surgery ◽  
Content Type ◽  
Thalamic Pain Syndrome ◽  
Thalamic Pain ◽  
Fine Print

Object. Although reports in the literature indicate that thalamic pain syndrome can be controlled with chemical hypophysectomy, this procedure is associated with transient diabetes insipidus. It was considered reasonable to attempt gamma knife surgery (GKS) to the pituitary gland to control thalamic pain. Methods. Inclusion criteria in this study were poststroke thalamic pain, failure of all other treatments, intolerance to general anesthetic, and the main complaint of pain and not numbness. Seventeen patients met these criteria and were treated with GKS to the pituitary. The target was the pituitary gland together with the border between the pituitary stalk and the gland. The maximum dose was 140 to 180 Gy. All patients were followed for more than 3 months. Conclusions. An initial significant pain reduction was observed in 13 (76.5%) of 17 patients. Some patients experienced pain reduction within 48 hours of treatment. Persistent pain relief for more than 1 year was observed in five (38.5%) of 13 patients. Rapid recurrence of pain in fewer than 3 months was observed in four (30.8%) of 13 patients. The only complication was transient diabetes insipidus in one patient. It would seem that GKS of the pituitary might have a role to play in thalamic pain arising after a stroke.

scholarly journals Small cell carcinoma of the cervix complicated by syndrome of inappropriate antidiuretic hormone secretion: a case report

2021 ◽  
Vol 49 (2) ◽  
pp. 030006052098565
Author(s):  
Cai-Fu Zhao ◽  
Su-Fen Zhao ◽  
Ze-Qing Du
Keyword(s):  
Cell Carcinoma ◽  
Antidiuretic Hormone ◽  
Small Cell Carcinoma ◽  
Poor Prognosis ◽  
Hormone Secretion ◽  
Clinical Manifestations ◽  
Small Cell ◽  
Laboratory Examination ◽  
Inappropriate Antidiuretic Hormone Secretion ◽  
Antidiuretic Hormone Secretion

Small cell carcinoma of the cervix is a rare malignant tumor in the clinical setting. Clinical manifestations of this tumor are mostly similar to those of normal types of cervical cancer. Small cell carcinoma of the cervix only shows symptoms of neuroendocrine tumors, such as syndrome of inappropriate antidiuretic hormone secretion (SIADH). Most of the hyponatremia caused by SIADH can be managed after removal of the cause. Hyponatremia is a predictor of poor prognosis and can be used as an indicator of partial recurrence. We report a case of small cell carcinoma of the cervix complicated by SIADH. Our patient presented with irregular vaginal bleeding after menopause. After one cycle of chemotherapy, there was trembling of the limbs, and a laboratory examination showed low Na+ and low Cl− levels. After limited water intake, intravenous hypertonic saline, and intermittent diuretic treatment, the patient’s blood Na+ levels returned to normal. After a radical operation, the above-mentioned symptoms disappeared.

scholarly journals Metastases to the pituitary gland

2004 ◽  
Vol 16 (4) ◽  
pp. 1-4 ◽  
Author(s):  
Daniel R. Fassett ◽  
William T. Couldwell
Keyword(s):  
Pituitary Gland ◽  
Diabetes Insipidus ◽  
Skull Base ◽  
Survival Rates ◽  
Tumor Resection ◽  
Sella Turcica ◽  
Pituitary Tumors ◽  
Visual Field Defects ◽  
Malignant Neoplasms ◽  
Pituitary Metastases

Only 1% of all pituitary surgeries are performed to treat tumors that have metastasized to the pituitary gland; however, in certain cases of malignant neoplasms pituitary metastases do occur. Breast and lung cancers are the most common diseases that metastasize to the pituitary. Breast cancer metastasizes to the pituitary especially frequently, with reported rates ranging between 6 and 8% of cases. Most pituitary metastases are asymptomatic, with only 7% reported to be symptomatic. Diabetes insipidus, anterior pituitary dysfunction, visual field defects, headache/pain, and ophthalmoplegia are the most commonly reported symptoms. Diabetes insipidus is especially common in this population, occurring in between 29 and 71% of patients who experience symptoms. Differentiation of pituitary metastasis from other pituitary tumors based on neuroimaging alone can be difficult, although certain features, such as thickening of the pituitary stalk, invasion of the cavernous sinus, and sclerosis of the surrounding sella turcica, can indicate metastasis to the pituitary gland. Overall, neurohypophysial involvement seems to be most prevalent, but breast metastases appear to have an affinity for the adenohypophysis. Differentiating metastasis to the pituitary gland from bone metastasis to the skull base, which invades the sella turcica, can also be difficult. In metastasis to the pituitary gland, surrounding sclerosis in the sella turcica is usually minimal compared with metastasis to the skull base. Treatment for these tumors is often multimodal and includes surgery, radiation therapy, and chemotherapy. Tumor invasiveness can make resection difficult. Although surgical series have not shown any significant survival benefits given by tumor resection, the patient's quality of life may be improved. Survival among these patients is poor with mean survival rates reported to range between 6 and 22 months.

Comparison of immunohistochemical profiles of ovarian germ cells in dysgerminomas of a captive maned wolf and domestic dogs

2021 ◽  
pp. 104063872110199
Author(s):  
Rafael B. Rosa ◽  
Matheus V. Bianchi ◽  
Paula R. Ribeiro ◽  
Fernando F. Argenta ◽  
Andréia Vielmo ◽  
...  
Keyword(s):  
Germ Cells ◽  
Poor Prognosis ◽  
Expression Profiles ◽  
Clinical Signs ◽  
Domestic Dogs ◽  
Domestic Dog ◽  
Placental Alkaline Phosphatase ◽  
Immunohistochemical Expression ◽  
Cytoplasmic Expression ◽  
Maned Wolf

We characterized the immunohistochemical expression profiles of dysgerminomas from a 16-y-old maned wolf and 13 domestic dogs using the following biomarkers: Sal-like protein 4 (SALL4), octamer-binding transcription factor 3/4 (OCT3/4), placental alkaline phosphatase (PLAP), c-kit, and vimentin. The maned wolf had nonspecific and long-standing clinical signs of lethargy, anorexia, and weight loss, and was euthanized because of poor prognosis. At autopsy, the left ovary was effaced by a 12 × 8 × 6 cm mass, comprised of anaplastic cells with a mitotic count of 20 mitoses in 10 high power fields. Dysgerminomas from 7 of 13 domestic dogs had nuclear expression of SALL4. Dysgerminomas from the maned wolf and 2 domestic dogs had both nuclear and cytoplasmic expression of SALL4. Cytoplasmic expression of PLAP and OCT3/4 was present in dysgerminomas from the maned wolf and 3 (PLAP) or 4 (OCT3/4) domestic dogs. All dysgerminomas expressed vimentin. Membranous c-kit expression was rare in the dysgerminoma from the maned wolf, and variable in dysgerminomas from 4 domestic dogs. A dysgerminoma from a domestic dog had cytoplasmic expression of c-kit. SALL4 is a useful marker to confirm germ cell origin of dysgerminoma in canids.

Clinical, MRI, and Histopathological Features of Hypothalamic Neuronal Hamartoma in a Young Vizsla

2021 ◽  
Author(s):  
Leonardo Bibbiani ◽  
Sara Canal ◽  
Daiana Marabese ◽  
Maria T. Mandara ◽  
Greta Foiani ◽  
...  
Keyword(s):  
Congenital Malformations ◽  
Histopathological Examination ◽  
Middle Cranial Fossa ◽  
Clinical Imaging ◽  
First Report ◽  
Histopathological Features ◽  
Neurological Signs ◽  
Cranial Fossa ◽  
The Brain ◽  
Clinical Mri

ABSTRACT Human hypothalamic neuronal hamartomas are rare, nonprogressive, congenital malformations of the hypothalamus that do not expand or metastasize to other locations. A 1 yr old female vizsla was presented for progressive intracranial multifocal neurological signs already present since adoption at 3 mo of age. MRI of the brain showed an ill-defined, intra-axial, space-occupying, nonenhancing lesion located in the ventral middle cranial fossa. Histopathological examination was consistent with hypothalamic neuronal hamartoma. This is the first report describing clinical, imaging, and histopathological features of a hypothalamic neuronal hamartoma in a dog. These findings are compared with the human counterparts.

scholarly journals Autoinfarction of Giant Parathyroid Adenoma after Preoperative Withdrawal of Anticoagulants

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Raoul Verzijl ◽  
Pim J. Bongers ◽  
Geetha Mukerji ◽  
Ozgur Mete ◽  
Karen M. Devon ◽  
...  
Keyword(s):  
Parathyroid Adenoma ◽  
Elective Surgery ◽  
Histopathological Examination ◽  
Neck Mass ◽  
Bone Lesions ◽  
Imaging Studies ◽  
Cystic Change ◽  
Parathyroid Adenomas ◽  
History Of ◽  
Brown Tumors

A 71-year-old man with known history of atrial fibrillation (treated with routine rivaroxaban therapy) was found to have incidental biochemical elevated calcium and parathyroid hormone (PTH) levels. His physical examination demonstrated the presence of a palpable right neck mass. Subsequent imaging studies revealed a large parathyroid mass as well as multiple bone lesions, raising the suspicion of parathyroid carcinoma. The anticoagulant therapy was stopped 5 days prior to his elective surgery. The night before his elective surgery, he presented to the emergency room with profound hypocalcemia. The surgery was postponed and rescheduled after calcium correction. Intraoperative findings and detailed histopathological examination revealed an infarcted 4.0 cm parathyroid adenoma with cystic change. His bony changes were related to brown tumors associated with long-standing hyperparathyroidism. Autoinfarction of a large parathyroid adenoma causing severe hypocalcemia is a rare phenomenon and may be considered in patients with large parathyroid adenomas after withdrawal of anticoagulants.

scholarly journals Key-Gaskell syndrome in Brazil: first case report

2014 ◽  
Vol 66 (4) ◽  
pp. 1046-1050
Author(s):  
B.B.J. Torres ◽  
G.C. Martins ◽  
P.E. Ferian ◽  
B.C. Martins ◽  
M.A. Rachid ◽  
...  
Keyword(s):  
Case Report ◽  
Poor Prognosis ◽  
Neuronal Degeneration ◽  
Clinical Signs ◽  
Definitive Treatment ◽  
Autonomic Ganglia ◽  
Nervous Systems ◽  
First Case ◽  
The World

Feline dysautonomia is a devastating disease characterized by neuronal degeneration in autonomic ganglia that results in clinical signs related to dysfunction of the sympathetic and parasympathetic nervous systems. The cause is unknown and this disease has a poor prognosis and no definitive treatment. Most reports have been described in few countries around the world, but the prevalence may be underestimated in countries like Brazil. This study describes the progression and clinicopathological changes of dysautonomia in a 17-month-old female Brazilian shorthair cat.

scholarly journals Glioblastoma multiforme subterfuge as acute cerebral hemorrhage: A case report and literature review

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Seidu A. Richard ◽  
Yunxia Ye ◽  
Hao Li ◽  
Lu Ma ◽  
Chao You
Keyword(s):  
Glioblastoma Multiforme ◽  
Cerebral Hemorrhage ◽  
Immunohistochemical Staining ◽  
Imaging Studies ◽  
Intracranial Hematoma ◽  
Who Grade ◽  
Neurological Signs ◽  
Frontal Horn ◽  
Vascular Origin ◽  
Hemorrhagic Lesion

Hemorrhagic related Glioblastoma multiforme (GBM) are rare and characterizes with severe clinical scuffle. The etiology of this presentation although not well known is believed to be multifactorial. We present a case as well as review on the pathogenesis of evolution of the hematoma into ring enhancing features of GBM on imaging studies. We present a case of 28 years old man who suddenly went into coma for 9 hours preceded with seizures that latest for 10 minutes. He had no focal neurological signs. CT-Scans images indicated acute cerebral hemorrhage near the frontal horn of the left ventricle with brain edema about the hemorrhagic lesion and MRI done a week later revealed a cerebral ring enhancing lesion. The lesion was partially resected during surgery and immunohistochemical staining confirmed GBM (WHO, grade 4). The diagnosis of intratumoral hemorrhage in GBM was very challenging at the initial stages but with time the hematoma evolved into ring enhancing images typical of GBM. It’s not every intracranial hematoma that is of pure vascular origin.

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