scholarly journals Oral masses in African pygmy hedgehogs

2019 ◽  
Vol 31 (6) ◽  
pp. 864-867
Author(s):  
Gabriela Del Aguila ◽  
Cristian G. Torres ◽  
Francisco R. Carvallo ◽  
Carlos M. Gonzalez ◽  
Federico F. Cifuentes
Keyword(s):  
Oral Cavity ◽  
Clinical Signs ◽  
Surgical Excision ◽  
Gingival Hyperplasia ◽  
Mesenchymal Tumors ◽  
Caudal Portion ◽  
Neural Origin ◽  
Oral Neoplasms ◽  
The Right ◽  
Privately Owned

African pygmy hedgehogs ( Atelerix albiventris) frequently develop oral neoplasms, and most of these neoplasms are malignant. We characterized oral masses detected in hedgehogs at clinical examination. During a 1-y period, we diagnosed oral cavity masses in 27 privately owned hedgehogs; 16 were female and 11 were male, with ages of 2–7 y (mean: 4.3 y). Eight masses were non-neoplastic and were diagnosed as gingival hyperplasia (GH). Nineteen masses were neoplastic, of which 17 were squamous cell carcinomas (SCCs) and 2 were mesenchymal tumors (1 spindle cell tumor of probable neural origin, and 1 hemangiosarcoma). The GHs were noninvasive, exophytic, and did not recur after surgical excision. The SCCs were highly invasive tumors that induced facial deformation and were located in the caudal portion of the oral cavity, with 12 of them arising from the right-caudal maxilla. Thus, clinical signs, growth pattern, and anatomic location can be used to suspect a diagnosis of SCC among the other possible diagnoses, such as GH, in this location. However, histopathology is necessary for confirmation. Also, hemangiosarcoma should be considered among the differential diagnoses.

scholarly journals Oral Myxoma in a Steer

2018 ◽  
Vol 46 ◽  
pp. 4
Author(s):  
Maria Helena Barros Pinto ◽  
Guilherme Reis Blume ◽  
Jussara Teixeira Medeiros ◽  
Ubirajara Oliveira Bilego ◽  
Fabiano José Teixeira De Sant'Ana
Keyword(s):  
Drinking Water ◽  
Oral Cavity ◽  
Alcian Blue ◽  
Clinical Signs ◽  
Surgical Excision ◽  
Northeastern Brazil ◽  
Blue Staining ◽  
Malignant Neoplasms ◽  
Current Case ◽  
Myxoid Matrix

Background: Myxoma is a benign neoplasm of mesenchymal cells producing a myxomatous matrix rich in mucopolysaccharides. This tumor occasionally has been described in older dogs and cats, and rarely occurs in other species. In ruminants myxomas can be found in the rumen and omasum, but there are no reports of these neoplasms involving the oral cavity of cattle. Only one case of myxoma was diagnosed in a 40-year study of 606 neoplasms in cattle in South Africa. Similar retrospective studies done in cattle from southern and northeastern Brazil also detected a single case of cutaneous myxoma. The current study reports the clinical and pathological findings of a rare occurrence of bovine oral myxoma.Case: A 22-month-old male crossbreed steer (Bosindicus) from the municipality of Rio Verde, GO (17°44′42″S 50°55′00″W), Brazil, presented a history of sialorrhea. There is no another affected animal in the herd. Clinical evaluation revealed mild swelling in the lower incisive gum. Treatment with flumetasone IM for three consecutive days was performed. Two months after this procedure, there was a considerable increase in the size to a flat, firm mass of 16x13x9 cm. Other clinical signs included emaciation and severe difficulty in feeding and drinking water. After surgical excision, fragments of the tumor were collected for histopathology. There is no local recurrence within approximately one year of the surgery. Microscopically, the lamina propria was found to be expanded and replaced by a nonencapsulated, moderately cellular, poorly demarcated, neoplastic proliferation. The lesion was composed of numerous loosely arranged bundles of cells in an abundant myxoid matrix. The bulk of the tumor parenchyma was formed by spindle or stellate cells with poorly demarcated borders and scant, eosinophilic cytoplasm. The nuclei were oval and hyperchromatic. Mild anisocytosis and anisokaryosis were present, along with rare mitotic figures. The myxoid matrix presented strong positive labeling to mucin by the Alcian blue staining. Based on the anatomopathological and histochemical findings, a diagnosis of myxoma was established.Discussion: Neoplasms of connective tissue originate from poorly differentiated fibroblasts and can produce collagenous (fibroma/fibrosarcoma) or mucinous (myxoma/myxosarcoma) stroma. In some cases, it is difficult to establish a histopathological classification and to distinguish between benign and malignant neoplasms, for which assessment of cell morphology, mitotic index, and biologic behavior are required. Very few cases of myxoma have been previously reported in cattle, this neoplasm and it was never diagnosed in the oral cavity of this species. Thre majority of neoplasms diagnosed in the oral cavity of cattle are squamous cell carcinomas and papillomas, although sporadic cases of lingual fibroma, lingual mastocytoma, odontoma and ameloblastic fibroma have been described. In the current case, the steer presented weight loss and difficulty in feeding and drinking water, probably due to the large volume of the neoplasm. Similar clinical signs can occur in cattle affected by other types of large neoplasms in the oral cavity. After surgical excision, the animal of the current report presented general improvement and considerable weight gain. The myxoma-related pathologic findings observed in the present case are similar to those described in other studies. Because myxoma is considered an infiltrative neoplasm, postoperative recurrence can occur; however, this was not noted in the current case and reports of myxoma in other species. The main differential diagnosis for myxoma is fibroma; the presence of mucin (Alcian blue positive) in the intercellular matrix as seen in the current case confirms the diagnosis of myxoma.

scholarly journals Oral Epithelioid Hemangioendothelioma — Unusual Location of a Rare Entity

2017 ◽  
Vol 2 (4) ◽  
pp. 349-353
Author(s):  
Alina Iacob ◽  
Sebastian Comișel ◽  
Mariana Tilinca ◽  
Tibor Mezei ◽  
Cecilia Petrovan
Keyword(s):  
Oral Cavity ◽  
Immunohistochemical Analysis ◽  
Surgical Excision ◽  
Vascular Tumor ◽  
Epithelioid Hemangioendothelioma ◽  
Rare Entity ◽  
Oncological Treatment ◽  
The Right ◽  
Ulcerative Stomatitis ◽  
Patient’S History

AbstractIntroduction:Epithelioid hemangioendothelioma is a rare, locally aggressive vascular tumor, originating from soft tissue, bone, skin, and organs such as the liver or lung, exceptionally located in the oral cavity. Most of the cases of oral epithelioid hemangioendothelioma are asymptomatic, and diagnosis is hampered by the fact that the histological features are somewhat between hemangioma and angiosarcoma, with epithelioid cells, intracytoplasmic vacuoles, low mitotic activity, and (rarely) necrosis. Immunohistochemical analysis is required to rule out carcinoma or other epithelioid vascular neoplasms.Case presentation:We present a rare case of a 59-year-old Caucasian male patient with oral epithelioid hemangioendothelioma for which clinical and cytological diagnosis was difficult, in spite of the patient’s history. The lesion was nonspecific, mimicking ulcerative stomatitis, but histological and immunohistochemical evaluation finally managed to establish the right diagnosis. Subsequently, the patient underwent surgical excision of the lesion followed by oncological treatment — chemotherapy.Conclusions:Although at first examination seemed that another lesion has developed, rigorous histology and immunohistochemistry tests proved the presence of epithelioid hemangioendothelioma, a very rare entity located in the oral cavity, which required a proper surgical and oncological approach.

scholarly journals Large solitary neurofibroma of the cheek mucosa: a case report

2021 ◽  
Vol 10 (2) ◽  
pp. e56810212905
Author(s):  
Andre Luis Costa Cantanhede ◽  
Carolinne da Gloria Araújo ◽  
Priscila Mayara Silva de Almeida ◽  
Hassan Lavalier de Oliveira Lima
Keyword(s):  
Case Report ◽  
Oral Cavity ◽  
Schwann Cells ◽  
Histological Examination ◽  
Unusual Case ◽  
Surgical Excision ◽  
Benign Tumors ◽  
Intraoral Approach ◽  
S 100 ◽  
Neural Origin

Neurofibromas are uncommon benign tumors in the oral cavity, which are composed of Schwann cells, perineural-like cells, and fibroblasts. The diagnosis can be confirmed by histological examination and immunopositivity for the S-100 protein indicating its neural origin. Surgical excision is the treatment of choice, and the intraoral approach is the best route for a medium-sized lesion and the prognosis is excellent. This paper aims at to present a unusual case of large neurofibroma located at the cheek mucosa of a young man and review important aspects of this tumor in the oral cavity.

scholarly journals Unusual facial lipoma

2014 ◽  
Vol 62 (4) ◽  
pp. 425-430
Author(s):  
Raphael Oliveira de MENESES ◽  
Sócrates Steffano Silva TAVARES ◽  
Tony Santos PEIXOTO ◽  
Maria do Socorro ARAGÃO ◽  
Gustavo Pina GODOY
Keyword(s):  
Oral Cavity ◽  
Surgical Excision ◽  
Complete Removal ◽  
Benign Tumors ◽  
Mature Adipocyte ◽  
Mesenchymal Neoplasm ◽  
The Face ◽  
Large Maximum ◽  
The Right ◽  
Slow Growing

Lipoma is a benign mesenchymal neoplasm of soft tissue composed of mature adipocyte cells, being among the most common benign tumors. However, it has been reported that they are uncommon in the oral cavity, representing between 15% and 20% of cases involving the head and neck, and between 1% and 5% of all benign neoplasms of the oral cavity. As for their clinical features, lipomas present as slow-growing and asymptomatic, with an associated yellowish submucosal growth, and may not be well circumscribed. Lipomas are known to grow to around 0.5 to 2 cm, but can have very large maximum diameters. Surgical excision is the treatment of choice, recurrence being rare. The reported case is of a 74 year old, female patient, exhibiting a large lipoma in the right genial-masseteric region, which is unusual with the clinic presentation of lipomas occurring on the face. The patient was subjected to the complete removal of the lesion, was monitored for 6 months and presented no signs of recurrence.

scholarly journals Clinical and Complementary Diagnosis of Sinus Neoplasia in Horses

2021 ◽  
Vol 49 ◽  
Author(s):  
Tatiana Yumi Mizucina Akutagawa ◽  
Ricardo De Francisco Strefezzi ◽  
Carla Bargi Belli ◽  
Raquel Yvonne Arantes Baccarin ◽  
Luis Cláudio Lopes Correia Da Silva ◽  
...  
Keyword(s):  
Early Diagnosis ◽  
Oral Cavity ◽  
Clinical Signs ◽  
Surgical Excision ◽  
Anaplastic Carcinoma ◽  
Clinical Aspects ◽  
Ossifying Fibroma ◽  
Complementary Methods ◽  
Poorly Differentiated Carcinoma ◽  
Poorly Differentiated

Background: Sinus neoplasms are reported as low frequency in horses. Its clinical characteristics are often nonspecific, depend on complementary methods for diagnosis, and when diagnosed, generally they are already advanced, limiting therapeutic possibilities. The objective of this case series was to detail clinical aspects and complementary exams for sinus neoplasms for early diagnosis, comparing them with the literature.Cases: Four horses were treated at the College of Veterinary Medicine and Animal Science of the University of São Paulo, with different clinical signs and previous diagnoses, which when evaluated by respiratory endoscopy, radiography, oral cavity evaluation and histopathological exams, revealed the diagnosis of anaplastic carcinoma, poorly differentiated carcinoma, ossifying fibroma and lymphoma. Previous diagnosis, based mainly on clinical signs, were sinusitis secondary to apical infection, ethmoidal hematoma, sinus cyst and sinusitis secondary to periapical disease. The cases of anaplastic carcinoma (case 1) and lymphoma (case 4) presented with an advanced degree of the disease with involvement and destruction of paranasal structures and adjacent tissues, in addition to a poor general condition, which made surgical treatment impossible and led to euthanasia. In these cases, previous treatment was made to apical infection and periodontal disease with secondary sinusitis, but negative evolution led to suspicion of neoplasia, confirmed by histopathological exam of incisional biopsy of the mass in oral cavity. Benign ossifying fibroma (case 3) presented with progressive respiratory difficulty due to occlusion of the lumen of some nasal meatus and radiographic signs of invasion and deformation of the adjacent bones, it was submitted for surgical excision and there was no recurrence until hospital discharge. The poorly differentiated carcinoma (case 2) was a multilobulate neoformation in the ethmoidal region, similar to ethmoid hematoma in endoscopic and radiographic evaluation, it was submitted for excision and two sessions of electrochemotherapy with bleomycin, associated with administration of piroxicam, which obtained a good result until the period of 1 year after discharge.Discussion: It was found that many characteristics are common with these types of neoplasms, and the clinical signs, such as nasal secretions, airway obstruction, increased facial volume, severe alterations in oral cavity, although unspecific, suggest the differential diagnosis for neoplasms. It is important to differentiate from other diseases noting the evolution and growth of these tumors, like in cases 1 and 4, especially the growth to internal tissues, using complementary methods described here, like endoscopic and radiographic examination. Late identification or even manipulation of neoplasms, without proper diagnosis, leads to a few prognoses regarding life. When it is possible to perform surgical excision, complementary methods are important to guide the procedure, and definitive diagnosis is made through histopathologic exam and some need immunohistochemistry analysis. Cases 2 and 3 had surgical access, were submitted to excision and treatment with good results, both with close monitoring in first months and prolonged quality of life. These results highlight the importance of complementary methods for early diagnosis, correct intervention and monitoring of evolution.Keywords: sinus neoplasia, paranasal sinus, tumor, head, horses.

scholarly journals Lung-Digit Syndrome Related to an Adenosquamous Feline Lung Carcinoma

2020 ◽  
Vol 48 ◽  
Author(s):  
Felipe Noleto De Paiva ◽  
Max Ferreira de Andrade ◽  
Dayane Caicó Collares Araújo ◽  
Rafaela Da Silva Goes ◽  
Thiago Souza Costa ◽  
...  
Keyword(s):  
Weight Loss ◽  
Adenosquamous Carcinoma ◽  
Clinical Signs ◽  
Surgical Excision ◽  
Purulent Discharge ◽  
Histopathological Diagnosis ◽  
Squamous Differentiation ◽  
Thoracic Limb ◽  
The Right ◽  
Histopathological Report

Background: The lung-digit syndrome is a rare syndrome characterized by the presence of a primary pulmonar neoplasia manifesting metastasis to the digit, occurring exclusively in felines. The diagnosis is based on the clinical signs, associated with radiographic and histopathological exams. There are no therapeutic protocols well-established, and surgical excision is considered controversial due to high recurrence and metastasis rates. The prognosis is considered poor, with low survival rates. The aim of this paper is to report a case of lung-digit syndrome attended in Rio de Janeiro.Case: A 12-year-old female cat, no defined race, was attend with the complaint of weight loss and injury in the right thoracic limb, already having histopathological diagnosis of squamous differentiation adenocarcinoma through biopsy. Physical examination showed no other clinical signs at first, including no signs of respiratory disease. Laboratory and imaging exams were performed, and the radiographic examination showed alterations in the pulmonary parenchyma showing a nodular area of increased radiographic density. Followed up by the manifestation of breathing noise at rest, as the first respiratory signs. The association of the clinical evaluation, medical history, and histopathological report from the limb lesion, lead to the suspicion diagnostic of lung-digit syndrome. The owners decide for the palliative treatment with chemotherapy, using carboplatin and prednisolone. Only the first session was performed, with the animal being euthanized due to clinical worsening 48 days after the initial manifestation of clinical signs. The diagnosis was confirmed by post mortem exams, and the pulmonary nodule were diagnosed as adenocarcinoma with squamous differentiation in concordance with the limb lesion diagnosis.Discussion: The lung-digit syndrome is still poorly studied in the veterinary medicine, with few reports published. Epidemiological data shows major incidence in elderly cats, with no racial or sexual predisposition, occurring in a 12-year-old cat in the present case. There are few theorys to explain the etiopathogenesis of the syndrome, however, none have been fully comproved. The clinical symptomatology varies from asymptomatic animals to those manifesting nonspecific systemic signs and respiratory signs. In this case the animal initially manifested only the presence of the digit injury and weight loss, with respiratory signs manifesting later. The digital lesion local signs usually include swelling, ulceration, purulent discharge, nail loss, and pain, occurring more frequently in the thoracic limbs, involving weight-bearing digits, as in the present report that occurred in the right thoracic limb, with involvement of the first and third digits. Radiographic findings may help in the diagnosis suspicion, having the confirmation by histopathological examination. The most frequent histological types involved in the syndrome are the adenocarcinoma, bronchoalveolar carcinoma, squamous cell carcinoma and adenosquamous carcinoma. The squamous-differentiated adenocarcinoma or adenosquamous carcinoma, as described in the histopathological report in the present case, is the least frequent. The treatment protocol is not well-established with no proven effective treatment. Surgical excision is not recomended as a palliative method, and the chemotherapy and radiotherapy sucess rates are still unknown. The prognosis is considered extremely unfavorable and early diagnosis represents the best attempt to control the disease.

Acute abdomen in pregnancy: a retrospective study of pregnant patients hospitalised for abdominal pain

2020 ◽  
Vol 99 (3) ◽  
pp. 131-135
Keyword(s):  
Abdominal Pain ◽  
Clinical Signs ◽  
University Hospital ◽  
Diagnostic Process ◽  
Abdominal Emergency ◽  
Lower Abdominal Quadrant ◽  
Abdominal Emergencies ◽  
The Right ◽  
Abdominal Quadrant ◽  
In Pregnancy

Introduction: Abdominal emergencies occur in pregnant women with the rate of 1:500−635 pregnancies. Such conditions usually develop from full health and worsen rapidly. Symptoms are often similar to those in physiological pregnancy (abdominal pain, vomiting, constipation). The diagnostic process is thus difficult and both the mother and her child are at risk. Our aim was to evaluate the frequency of abdominal emergencies in the Department of Surgery, University Hospital in Pilsen and to consider their impact on pregnancy and on the newborn. Methods: We acquired a set of patients by retrograde collection of data. We searched for pregnant patients suspected of developing an abdominal emergency admitted to the Department of Surgery, Faculty of Medicine, Pilsen between 2004 and 2015. We evaluated a number of clinical signs to statistically describe the set. Results: The set included 121 patients; 42 of the patients underwent a surgical procedure and 79 received conservative treatment. 38 patients underwent appendectomy; 6 appendixes were with no pathologies. McBurney’s incision was an approach of choice in most cases. The most frequent symptom was pain in the right lower abdominal quadrant. The foetus has been lost in none of the cases. Conclusion: Acute appendicitis was the most frequent abdominal emergency in our set and also the most frequent reason for surgical intervention. The most specific sign was pain in the right lower abdominal quadrant. No impact of appendicitis or appendectomy on the health of the newborn has been observed. Even though abdominal emergencies in pregnancy are relatively rare, the results of the department are very good.

Treatment Methods Conditioned by the Gravity of Drug-Induced Gingival Hyperplasias

2017 ◽  
Vol 68 (11) ◽  
pp. 2618-2622
Author(s):  
Alina Mihaela Calin ◽  
Mihaela Debita ◽  
Raluca Dragomir ◽  
Ovidiu Mihail Stefanescu ◽  
Cristian Budacu ◽  
...  
Keyword(s):  
Dental Treatment ◽  
Histopathological Examination ◽  
Transplant Rejection ◽  
Surgical Excision ◽  
Channel Blockers ◽  
Gingival Hyperplasia ◽  
Drug Induced ◽  
Treatment Methods ◽  
Systemic Medication ◽  
Bacterial Plaque

The first drug discovered to be involved in the development of gingival hyperplasia is phenytoin, which is indicated in the treatment of epileptic patients. The other drugs are calcium channel blockers with vasodilating effect. The most important one is Nifedipine, while Ciclosporin A, which is used as an immunosuppressant in the prevention of transplant rejection, causes gingival hyperplasia as a secondary effect. Gingival hyperplasia can reach an impressive volume, completely covering the dental crown and affecting the masticatory and physiognomic functions. The elucidation of the mechanism, by which drug-induced gingival hyperplasia occurs, favoring factors and the choice of conservative or surgical treatment methods, emphasizing the prophylactic treatment. The study batch was subject to intraoral and extraoral clinical examinations and the data were included in the dental treatment sheet of each patient, 11 patients aged over 60 years, who came to the Clinic ... in the period 2014-2016. The diagnosis was based on the anamnesis, the clinical aspect of the lesions and the histopathological examination. After the surgical excision of the hyperplasia affected area, recurrence was prevented by dispensarizing the patients and controlling the bacterial plaque through rigorous oral hygiene. Treatment depends on the severity of the lesions, as well as on the physionomic and masticatory functions. Conservative etiological therapy is attempted, by removing the bacterial plaque and local irritant factors, by reducing the dose of drugs, or by changing the systemic medication.

Multidisciplinary Approach of a Very Rare Infected Verrucous Carcinoma of the Scrotum

2019 ◽  
Vol 70 (4) ◽  
pp. 1476-1478
Author(s):  
Laura Raducu ◽  
Adelaida Avino ◽  
Cristina-Nicoleta Cozma ◽  
Sorin Nedelea ◽  
Andra-Elena Balcangiu-Stroescu ◽  
...  
Keyword(s):  
Adjuvant Therapy ◽  
Rare Disease ◽  
Chronic Inflammation ◽  
Male Patient ◽  
Multidisciplinary Approach ◽  
Verrucous Carcinoma ◽  
Surgical Excision ◽  
Diagnosis And Treatment ◽  
Wide Surgical Excision ◽  
The Right

Verrucous carcinoma of the scrotum is an extremely rare disease and most cases are thought to result from poor hygiene and chronic inflammation. Currently, it has not been well characterized, the etiology, diagnosis and treatment remaining poorly understood. We present the case of a 50-year-old male patient diagnosed with verrucous carcinoma of the right hemiscrotum. Wide surgical excision was performed. Favorable outcomes can be achieved by surgery, even without any adjuvant therapy, but patients should be carefully followed up.

Hepatic brucelloma: a rare complication of a common zoonotic disease

2020 ◽  
Vol 13 (12) ◽  
pp. e237076
Author(s):  
George Vatidis ◽  
Eirini I Rigopoulou ◽  
Konstantinos Tepetes ◽  
George N Dalekos
Keyword(s):  
Rare Complication ◽  
Surgical Excision ◽  
Coombs Test ◽  
Inflammation Markers ◽  
Laboratory Findings ◽  
Ct Guided ◽  
Rare Manifestation ◽  
Bone Marrow Cultures ◽  
History Of ◽  
The Right

Hepatic brucelloma (HB), a rare manifestation of brucellosis, refers to liver involvement in the form of abscess. A 35-year-old woman stockbreeder was admitted due to 1-month history of evening fever, sweating and weight loss, while she was on 3-week course of rifampicin/doxycycline for suspected brucellosis. On admission, she had hepatosplenomegaly and a systolic murmur, while cholestasis, increased inflammation markers and a strong-positive Wright-Coombs test were the main laboratory findings. As blood and bone marrow cultures were unrevealing, further investigation with CT imaging showed a central liver calcification surrounded by heterogeneous hypodense area being compatible with HB. Material from CT-guided drainage tested negative for Brucella spp. After failure to improve on a 10-week triple regiment, surgical excision was decided and Brucella spp were identified by PCR. Our case highlights challenges in establishing HB diagnosis, which should be considered on the right epidemiological context and when serological and radiological evidence favour its diagnosis.

Sign in / Sign up

Export Citation Format

Share Document