Histopathological Examination
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Author(s):  
Sushmitha S ◽  
V Ramesh ◽  
B Premalatha ◽  
K Ramadoss

Dentinogenic ghost cell tumors (DGCTs) are uncommon neoplasms classified as a solid variant of the calcifying odontogenic cyst and defined as a locally invasive neoplasm, characterized histologically by an ameloblastomatous epithelium with an area of ghost cell formation and a varying amount of dentinoid. Herein, we present the case of a 22-year old man who was referred to us due to recurrent swelling of right posterior mandibular region. The diagnosis of a DGCT was made by the use of advanced radiographic imaging and detailed histopathological examination.


Author(s):  
Sushmitha S ◽  
V Ramesh ◽  
B Premalatha ◽  
K Ramadoss

Dentinogenic ghost cell tumors (DGCTs) are uncommon neoplasms classified as a solid variant of the calcifying odontogenic cyst and defined as a locally invasive neoplasm, characterized histologically by an ameloblastomatous epithelium with an area of ghost cell formation and a varying amount of dentinoid. Herein, we present the case of a 22-year old man who was referred to us due to recurrent swelling of right posterior mandibular region. The diagnosis of a DGCT was made by the use of advanced radiographic imaging and detailed histopathological examination.


2021 ◽  
Vol 11 (3) ◽  
pp. 403-408
Author(s):  
Islam H. Shidakov ◽  
Bakhtiyar M. Kalniyazov ◽  
Maryam N. Urusova

BACKGROUND: One of the rare causes of abdominal pain in children is an omental infarction. In the literature, there are few descriptions of this pathology in childhood. The disease is often diagnosed only intraoperatively because of its nonspecific clinical picture. Therefore, the clinical cases presented in the article may be of interest to pediatric surgeons. CASES REPORT: In the pediatric surgical department of our clinic, two patients aged five and six years old were treated after being admitted with abdominal pain syndrome, the clinical picture of which did not allow to exclude an acute surgical pathology. A laparoscopy was performed to clarify the diagnosis. Isolated lesions of the segments of the greater omentum were revealed without signs of torsion and pathology of other organs. The operations were completed by resection of the altered omental sections. Histopathological examination revealed hemorrhages and tissue necrosis. DISCUSSION: The localization of pain in the right abdomen necessitates differentiating the disease from acute appendicitis, cholecystitis, and acute gynecological pathology. In the treatment of patients with omental infarction, there are supporters of conservative and surgical strategies. We performed a resection of the affected omental segment, which enabled us to achieve complete recovery in both cases. CONCLUSION: Laparoscopy in unclear diagnostic situations permits the timely diagnosis of an omental infarction, and surgical minimally invasive intervention leads to a successful cure.


2021 ◽  
Vol 8 (10) ◽  
pp. 224
Author(s):  
Jun Kwon ◽  
Sang Wha Kim ◽  
Sang Guen Kim ◽  
Hyoun Joong Kim ◽  
Sung Bin Lee ◽  
...  

A two-year-old ball python with a submandibular mass was evaluated. Fine needle aspiration resulted in debris containing purulent materials and bacterial cells on cytology. Radiography demonstrated multi-focal radiopaque lesions in the mass, which were suspected to be mineralization; there was an absence of mandibular invasion or lung involvement. Gross examination of the surgically excised mass revealed a multi-nodular, well-circumscribed lesion with purulent material. The postoperative recovery was uneventful. The histopathological examination followed by immunohistochemistry analysis gave a diagnosis of leiomyosarcoma. As tumors containing purulent materials can be confused with an abscess, diagnostic confirmation with various diagnostical tools should be considered.


Author(s):  
Suppapong Tirakunwichcha ◽  
Lalana Sansopha ◽  
Chaturong Putaporntip ◽  
Somchai Jongwutiwes

A 59-year-old female living in Rayong Province, eastern Thailand, presented with painless, right upper eyelid nodule for 3 months. Upon removal of the eyelid mass, a well-circumscribed, firm globular mass with diameter about 1 cm was found. Histopathological examination revealed an immature female dirofilarial worm reminiscent of Dirofilaria repens, characterized by prominent sharp longitudinal ridges at external surface of the cuticle. Analysis of the mitochondrial 12S rRNA sequence showed that the worm belongs to Candidatus Dirofilaria hongkongensis. It is likely that some infections previously reported as D. repens based on histological examination may have actually been due to Candidatus D. hongkongensis.


2021 ◽  
Vol 11 (19) ◽  
pp. 9325
Author(s):  
Jin-Mo Koo ◽  
Mi-Jin Yang ◽  
Bo-Kyung Kim ◽  
Jeong Eun Yoo ◽  
Jang-Kyung Park ◽  
...  

Yeosinsan, an herbal formula composed of roots of Paeonia lactiflora and tubers of Cyperus rotundus, was reported as a possible anti-inflammatory and pro-fertility drug. However, the safety of Yeosinsan has not yet been previously investigated. The possible acute and chronic oral toxicity of Yeosinsan was estimated using female and male Sprague Dawley rats. During the administration period, rats were monitored for mortality, body weight changes, food intake, clinical signs, and gross findings. Hematological analysis, serum biochemistry analysis, urinalysis, organ weight measurement, and histopathological examination were also conducted after sacrifice. Acute and chronic oral administration of Yeosinsan did not result in any signs of toxicity in the animals during the observation period. However, in the histopathological examination, several significant changes were observed in the stomach and spleen. In the high‑dose group, extramedullary hematopoiesis and increased pigmentation in the spleen and squamous cell hyperplasia in the forestomach were observed. In conclusion, the no observed adverse effect level (NOAEL) of the test material, Yeosinsan, was estimated at 1000 mg∙kg−1∙d−1 for both male and female rats. Therefore, our data suggest that Yeosinsan might be safe to use for treating female infertility.


2021 ◽  
Vol 28 (5) ◽  
pp. 4016-4030
Author(s):  
Katarzyna Steinhof-Radwańska ◽  
Andrzej Lorek ◽  
Michał Holecki ◽  
Anna Barczyk-Gutkowska ◽  
Anna Grażyńska ◽  
...  

Background: The multifocality and multicentrality of breast cancer (MFMCC) are the significant aspects that determine a specialist’s choice between applying breast-conserving therapy (BCT) or performing a mastectomy. This study aimed to assess the usefulness of mammography (MG), contrast-enhanced spectral mammography (CESM), and magnetic resonance imaging (MRI) in women diagnosed with breast cancer before qualifying for surgical intervention to visualize other (additional) cancer foci. Methods: The study included 60 breast cancer cases out of 630 patients initially who underwent surgery due to breast cancer from January 2015 to April 2019. MG, CESM, and MRI were compared with each other in terms of the presence of MFMCC and assessed for compliance with the postoperative histopathological examination (HP). Results: Histopathological examination confirmed the presence of MFMCC in 33/60 (55%) patients. The sensitivity of MG in detecting MFMCC was 50%, and its specificity was 95.83%. For CESM, the sensitivity was 85.29%, and the specificity was 96.15%. For MRI, all the above-mentioned parameters were higher as follows: sensitivity—91.18%; specificity—92.31%. Conclusions: In patients with MFMCC, both CESM and MRI are highly sensitive in the detection of additional cancer foci. Both CESM and MRI change the extent of surgical intervention in every fourth patient.


Author(s):  
Sapna Soni ◽  
K.K. Jakhar ◽  
Gauri A. Chandratre ◽  
Surjeet Singh

Background: There is scanty literature on evaluation of oxidative stress and alpha antitrypsin marker expression in canine TVT to know its histiocytic behaviour. Since venereal transmissible tumor is one of most important tumor affecting large population of canine, thus, study was conducted to investigate the above based on clinicopathology. Methods: The study was conducted on dogs suffering from transmissible venereal tumor (TVT) for evaluation of clinicopathological alterations, oxidative stress and expression pattern of alpha antitrypsin. Ten bitches and five male dogs with tumour masses seen on the external genitalia were used for the study. Detailed alterations due to TVT with respect to haematobiochemistry, oxidative stress, pathomorphology, proliferation and expression pattern of alpha antitrypsin were assessed. Result: Grossly tumors on the genital area were either pedunculated or sessile and of various shape such as cauliflower, filiform and irregular. Hematological alterations such as normocytic normochromic type of anaemia, thrombocytopenia, neutropenia and lymphocytopenia in TVT cases indicated immunosuppression. Significant alterations in liver enzymes, hypercalcemia and hypoglycaemia were also observed in TVT affected dogs. Increased level of MDA and decreased in concentration of antioxidant enzymes indicated association of oxidative stress in proliferation of tumor and reduction in number of T lymphocytes. Cytological examination revealed characteristic punctuate basophilia and vacuolation in tumour cells. Histopathological examination showed characteristic round cells with a little fibrous septa in a sheet like manner. AgNOR staining indicated moderate proliferative capacity as evidenced by scattered AgNOR dots. TVT cells showed moderate type of immunoreactivity with alpha anti-trypsin confirming its histiocytic origin upon immunohistochemistry.


2021 ◽  
Vol 8 (2) ◽  
Author(s):  
Neethu Mary George ◽  
Onnarayil Thomas George

Introduction: Amputation can disturb the quality of life, and it can be worsened when the amputated stump suffers from any dermatoses. It is mandatory for an amputee and the doctor to know about the common dermatoses that an amputated limb can suffer from. The prosthesis should be properly fitting, and hygiene has to be maintained. Case Presentation: A 49-year-old male presented with a warty lesion over the amputated limb. Histopathological examination revealed verrucous hyperplasia, and further examination showed improperly fitted prosthesis. A well-fitted prosthesis with proper padding cured his lesion. Conclusions: The case report highlights how a properly fitted prosthesis corrects the lymphatic flow and thereby reduces complications. It is also important to maintain stump hygiene, as the humid, relatively anaerobic environment inside the prosthesis can trigger the growth of various organisms.


Author(s):  
Volkan Yılmaz ◽  
Nüvit Coşkun ◽  
M. Özkan Timurkan ◽  
Emin Karakurt ◽  
Hilmi Nuhoğlu ◽  
...  

Background: Canine distemper virus (CDV) is highly contagious disease that affects dogs despite several control measures. This study was aimed at investigating the presence of CDV nucleic acid in different clinical and tissue materials, from naturally infected dogs, by reverse transcriptase-polymerase chain reaction (RT-PCR) and to molecularly characterize distemper strains according to the partial Nucleoprotein (NP) gene sequence. Furthermore, tissue samples under went histopathological examination for distemper infection. Methods: A total of 202 different diagnosis materials were collected from dogs (n=60) in the Kars region in northeastern Turkey. The samples were tested for CDV using RT-PCR with primers designed for the CDV NP gene. Samples determined as positive for CDV (n=7) were sequenced. Tissue samples underwent histopathological examination. Result: Most of the cases were in animals aged 0-6 months. The most common clinical finding was severe respiratory system infection. This finding was accompanied by gastrointestinal and nervous system infections. CDV nucleic acid was detected in 112 of 202 materials by RT-PCR. According to RT-PCR results, positivity rates of 88.2% (30/34), 72.2% (13/18), 60% (3/5), 55.5% (10/18), 55.5% (10/18), 51.6% (16/31), 45.5% (5/11), 37.8% (14/37) and 36.7% (11/30) were detected in nasal swab, lung, footpad, kidney, spleen, rectal swab, cerebrospinal fluids (CSF), leuokocyte and cerebellum samples, respectively. Viral nucleic acids were detected at higher rates in nasal swabs. The phylogenetic assessment of the amplicon sequences revealed a 97.7%-100% similarity among the Turkish CDV strains, which are independent from vaccine strains, were found to be more closely related to the European lineage. Intranuclear and intracytoplasmic inclusion bodies were detected by histopathology. This is the first study to investigate CDV in naturally infected dogs from northeastern Turkey and to provide novel and updated epidemiological information.


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