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Surgical histopathology

Michael G Z Ghali, Ayman Samkari, J Steve Hou, Manjula Balasubramanian, Sherri Besmer, Matthew Keisling, Prithvi Narayan
Primary central nervous system lymphoma (PCNSL) is rare in children with immunocompromise as an important risk factor. A 7-year-old girl with unspecified T-cell immunodeficiency presented with left-sided weakness and was found to have a right-sided frontal lobe mass on imaging. The mass was resected; histopathology and molecular studies evidenced diffuse large B-cell lymphoma. Prior chest imaging had revealed left upper lobe mass, and repeat chest imaging revealed multiple pulmonary nodules, initially concerning for metastasis...
August 15, 2018: Pediatric Neurosurgery
Min Wang, Fang Yuan, Yi Wei, Chunchao Xia, Fubi Hu, Bin Song
INTRODUCTION: It is urgent to find an effective method to diagnose and prognose early hepatocellular carcinoma (HCC). The purpose of this study was to investigate the correlation between HCC histological degree and water percentage (WP) obtained from magnetic resonance imaging 3D-VIBE multiecho Dixon, and to evaluate the feasibility of WP in the postoperative prediction of early HCC recurrence. METHODS AND MATERIALS: From June 2016 to July 2017, 76 patients with diagnostic HCC all underwent 3D-VIBE Multiecho Dixon and ultrahigh b value diffusion-weighted imaging (DWI) examination...
August 15, 2018: Cancer Biotherapy & Radiopharmaceuticals
Christine L Cain, Stephen D Cole, Charles W Bradley Ii, Michael S Canfield, Elizabeth A Mauldin
BACKGROUND: The Burkholderia cepacia complex (Bcc) is an emerging cause of opportunistic infections. Deep pyoderma associated with Bcc infection has been reported previously in dogs receiving ciclosporin. OBJECTIVE: To report the clinical and histopathological features of four additional cases of Bcc dermatitis in dogs, one of which progressed to septicaemia. ANIMALS: Four dogs with a skin culture yielding growth of Bcc and skin biopsies for histopathological investigation...
August 14, 2018: Veterinary Dermatology
Bao Yang, Chenlong Yang, Yilin Sun, Jiang Du, Pinan Liu, Guijun Jia, Wang Jia, Yazhuo Zhang, Jisheng Wang, Yulun Xu, Shuo Wang
BACKGROUND: Mixed gangliocytoma-pituitary adenoma is an extremely rare tumor occurring in the sellar region, histologically composed of both gangliocytic and pituitary adenomatous architectures. The histogenesis of these tumors remains unknown, and the diagnosis, treatment, and prognosis are yet to be fully understood. METHODS: We retrospectively reviewed the clinical, radiological, and histopathological profiles from a series of 20 patients with sellar mixed gangliocytoma-pituitary adenomas...
August 14, 2018: Acta Neurochirurgica
Jeon Mi Lee, Jin Woo Joo, Sung Huhn Kim, Jae Young Choi, In Seok Moon
Carcinoma of the external auditory canal (EAC) is a rare tumor and little information is available regarding parotid gland in surgically treating EAC carcinomas. This study aimed to investigate the mode of parotid involvement in EAC carcinoma through staging and histopathological analysis, and to establish surgical guidelines for the parotid gland management when there is no clinical evidence of parotid involvement. Sixty-five patients with EAC carcinoma who underwent temporal bone resection and any type of parotidectomy simultaneously were retrospectively reviewed...
August 14, 2018: Scientific Reports
Nicholas T Gamboa, Michael Karsy, Joseph T Gamboa, Nam K Yoon, Meghan J Driscoll, Joshua A Sonnen, Karen L Salzman, Randy L Jensen
Background: Ependymomas are rare neuroepithelial tumors thought to arise from radial glial precursor cells lining the walls of the ventricles and central canal of the brain and spinal cord, respectively. Histopathological classification, according to World Health Organization criteria, has only recently defined the RELA-fusion positive ependymoma. These tumors may account for 70% of supratentorial ependymomas in children and represent an aggressive entity distinct from other ependymomas...
2018: Surgical Neurology International
Gerald B Fogarty, Angela Hong, Alex Economides, Pascale Guitera
Lentigo maligna (LM) is a form of melanoma in situ that occurs on exposed, sun-damaged skin; LM can progress to invasive melanoma. Conventional surgical treatment is the preferred management option as it is usually a one-treatment episode and generates a histopathology report that records completion of excision. Some patients may not be surgical candidates due to comorbidities, patient preference, impact on function, and cosmesis or they have failed surgery with a positive margin. Other therapies, including radiotherapy (RT) and topical medicines, may then become appropriate...
2018: Dermatology Research and Practice
Ophélie Cojean, Isabelle Langlois, Magaly Bégin-Pépin, Pierre Hélie
A 3-year-old intact female guinea pig (Cavia porcellus) was presented for acute anorexia. Medical and surgical treatments for cystitis and ovarian cysts, respectively, did not prevent continuous weight loss. Computed tomography and histopathological analysis revealed a chondroblastic osteosarcoma of the right middle ear, which has not been reported in this species.
August 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
Musa AlHarbi, Nahla Ali Mobark, Latifa AlMubarak, Rasha Aljelaify, Mariam AlSaeed, Amal Almutairi, Fatmah Alqubaishi, M Emarat Hussain, Ali Abdullah O Balbaid, Amal Said Marie, Lamia AlSubaie, Saeed AlShieban, Nada alTassan, Shakti H Ramkissoon, Malak Abedalthagafi
Primary brain tumors are a leading cause of cancer-related morbidity and mortality in children. Glioblastoma (GBM) is a high-grade astrocytoma that occurs in both children and adults and is associated with a poor prognosis. Despite extensive study in recent years, the clinical management of these tumors has remained largely unchanged, consisting of surgical resection, conventional chemotherapy, and radiotherapy. Although the etiology and genomic drivers in GBM are diverse, constitutional mismatch repair-deficiency (CMMRD) syndrome is a rare, recessively inherited disease with a predisposition to gliomagenesis...
August 13, 2018: Oncologist
Omar Toumi, Badii Hamida, Manel Njima, Amal Bouchrika, Houssem Ammar, Amira Daldoul, Sonia Zaied, Sadok Ben Jabra, Rahul Gupta, Faouzi Noomen, Khadija Zouari
INTRODUCTION: Adenosquamous carcinoma is a rare colorectal tumor with both an adenocarcinoma and a squamous cell carcinoma component. To the best of our knowledge, only few cases have been reported in the literature. CASE PRESENTATION: We report a case of a 46-year-old woman, hospitalized for large bowel obstruction syndrome. Computed tomography scan showed an irregular mass of the right colic angle, responsible for an occlusive syndrome with distension of the right colon, the appendix and the terminal ileum...
July 11, 2018: International Journal of Surgery Case Reports
Bridget E Shields, Misha Rosenbach, Zoe Brown-Joel, Anthony Berger, Bradley A Ford, Karolyn A Wanat
Angioinvasive fungal infections cause significant morbidity and mortality due to their propensity to invade blood vessel walls, resulting in catastrophic tissue ischemia, infarct, and necrosis. While occasionally seen in immunocompetent hosts, opportunistic fungi are emerging in immunosuppressed hosts, including patients with hematologic malignancy, acquired immunodeficiency syndrome (AIDS), organ transplant, and poorly controlled diabetes mellitus. The widespread use of antifungal prophylaxis has led to an "arms race" of emerging fungal resistance patterns...
August 10, 2018: Journal of the American Academy of Dermatology
Radek P Kindl, Krunal Patel, Rikin A Trivedi
Brachial plexus tumors are uncommon lesions in young adults. The majority of these are benign peripheral sheath tumors. In this 3-dimensional video, we present a case of a 19-yr-old female who presented to the neurosurgical outpatients with an anterior neck lump. It has been present for months, causing occasional numbness and paraesthesia in the distribution of the left ring finger. There was no objective weakness in finger flexion with normal long flexors reflexes. The cervical spine and supraclavicular brachial plexus were investigated with a magnetic resonance imaging (Gadolinium) scan (Figure 1)...
August 8, 2018: Operative Neurosurgery (Hagerstown, Md.)
Tobias Röck, Hans-Christian Bösmüller, Karl Ulrich Bartz-Schmidt, Daniel Röck
Purpose: Nevi of the conjunctiva are usually benign pigmented tumorous lesions located in the bulbar conjunctiva. In most conjunctival nevus cases, the patient wants the lesion to be removed for cosmetic reasons, but excisional biopsies are best for lesions suspicious for malignancy. This case report illustrates the intraoperative surgical management, histological findings, and the course of healing in a conjunctival nevus patient. Case report: A 26-year-old man was referred to our eye hospital with a large bulbar conjunctival nevus of the right eye...
2018: International Medical Case Reports Journal
David Muchuweti, Edwin G Muguti, Bothwell A Mbuwayesango, Simbarashe Gift Mungazi, Rudo Makunike-Mutasa
INTRODUCTION: Pheochromocytomas are catecholamine producing tumours which arise from chromaffin cells within the adrenal medulla. Patients with these tumours commonly present with a triad of headache, palpitations and hypertension. CASE PRESENTATION: We present a case of a 37-year-old male patient who presented with dull left sided abdominal pain and discomfort for 6 weeks. A preoperative Computed tomography (CT) scan showed a huge left suprarenal tumour but urinary vanillylmandelic acid (VMA) were negative...
August 1, 2018: International Journal of Surgery Case Reports
G García de Oteyza, J Betancourt, M Benedetti Sandner, K A Vázquez-Romo, I Hernández-Ayuso, N Ramos-Betancourt
An 11 year-old girl presented with a recent growth pigmented conjuntival lesion in the bulbar conjunctiva of left eye. Due to the the biomicroscopic and ultrasound findings, an excisional biopsy was performed on the lesion using the «no touch» technique, as well as cryo-coagulation of surgical margins. Histopathological examination revealed an inflammatory compound nevus. Melanotic conjunctival tumours are mostly benign. However, the recent growth of a lesion, its vascularisation, irregularities of the margins, and colour change must suggest it has turned malignant...
August 8, 2018: Archivos de la Sociedad Española de Oftalmología
Pramod Nepal, Shinichiro Mori, Yoshiaki Kita, Kan Tanabe, Kenji Baba, Yasuto Uchikado, Hiroshi Kurahara, Takaaki Arigami, Masahiko Sakoda, Kosei Maemura, Shoji Natsugoe
BACKGROUND: Rectal gastrointestinal stromal tumor (GIST) is a very rare tumor of gastrointestinal tract. Surgical management of rectal GIST requires special attention for preserving of anal and urinary functions. Transanal minimal invasive surgery (TAMIS) is a well-developed minimally invasive technique for local excision of benign and early malignant rectal tumors; however, the application of TAMIS for rectal GIST is rarely and inadequately reported. We report the novel application of TAMIS for rectal GIST with considerations for anal and urinary functions...
August 11, 2018: World Journal of Surgical Oncology
Karen Tran-Harding, Rashmi T Nair, Adrian Dawkins, Andres Ayoob, Joseph Owen, Sarah Deraney, James T Lee, Scott Stevens, Halemane Ganesh
The manifestations of endometriosis commonly present a diagnostic challenge to the gynecologist and radiologist. Familiarity with its varied presentations may allow for a more accurate diagnosis. The goal of this review is to the present the imaging spectrum of endometriosis, less common sites of involvement as well as the potential rare complications. Relevant surgical and histopathological correlation is also provided. In addition to clinical evaluation and sonography, MRI is a highly accurate imaging modality in the diagnosis of endometriosis...
July 31, 2018: Clinical Imaging
Jinah Kim, Jung Hwa Hwang, Bo Da Nam, Young Woo Park, Yoon Mi Jeen
RATIONALE: Mediastinal and retroperitoneal fibrosis as a manifestation of metastasis from malignancies is rare disease and particularly, cases of mediastinal fibrosis have been rarely reported. PATIENT CONCERNS: A 60-year-old woman presented with dyspnea and bilateral flank pain. The patient had no previous history of malignancy. DIAGNOSES: A contrast-enhanced chest computed tomography scan revealed a left breast mass and infiltrative soft tissue masses in the mediastinum and retroperitoneum, which showed high fluorodeoxyglucose uptake on positron emission tomography scan...
August 2018: Medicine (Baltimore)
Michael D Cearns, Samantha Hettige, Paolo De Coppi, Dominic N P Thompson
OBJECTIVE It is well established that Currarino syndrome (CS) may be associated with spinal dysraphism. Here, the authors report on 10 CS patients with dysraphic anomalies who had undergone a combined neurosurgical and general surgical approach to repair the dysraphic anomalies and resect the presacral mass in a single operation. They discuss the spectrum of spinal dysraphism that may coexist in CS in the context of its developmental etiology. METHODS Children with a confirmed CS diagnosis who had undergone the combined operative approach were identified from a departmental database...
August 10, 2018: Journal of Neurosurgery. Pediatrics
Reinhard Angermann, Martin Stattin, Claus Zehetner
PURPOSE: To describe the challenging diagnosis of ocular nocardiosis in a patient with anaplastic astrocytoma Methods: A 56-year-old patient with recurrent cerebral anaplastic astrocytoma and a history of surgical resection, who underwent radiotherapy and chemotherapy, presented with a unilateral white subretinal mass at the posterior pole of his left eye. Vitrectomy and fine-needle biopsy of the vitreous as well as the subretinal mass were performed. RESULTS: Magnetic resonance imaging verified progression of the lesion's size at follow-up...
August 10, 2018: Ocular Immunology and Inflammation
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