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Takashi Oide, Kazuhiro Yasufuku, Kiyoshi Shibuya, Ichiro Yoshino, Yukio Nakatani, Kenzo Hiroshima
We report a 38-year-old woman with a left lung tumor presenting as obstructive pneumonia. Bronchoscopic examination revealed a polypoid tumor filling the left main bronchus. The tumor was partially resected by a snaring procedure for diagnostic purposes. Microscopic examination revealed a submucosal tumor located underneath normal bronchial epithelium. The tumor was composed of sheets of uniform oval to cuboidal cells encompassing numerous blood vessels. Immunohistochemically, the tumor cells exhibited smooth muscle markers, but were negative for neuroendocrine markers...
2016: Respiratory Medicine Case Reports
Ajay K Rai
No abstract text is available yet for this article.
September 2016: Indian Dermatology Online Journal
Mohan Liu, Jian Sun, Yang Li, Yan Xiao
This study aimed to explore whether nitrogen availability could influence mycorrhizal function and their associations with host plants in Cd-contaminated acidic soils or not. A greenhouse pot experiment was conducted to assess the effects of mycorrhizal inoculation (non-mycorrhizal inoculation (NM), Glomus aggregatum (Ga), G. tortuosum (Gt) and G. versiforme (Gv)) and inorganic N amendment on the growth, nutrient and Cd uptake of Medicago sativa grown in Cd-contaminated acidic soils (10 mg Cd kg(-1) soil)...
October 6, 2016: Chemosphere
Joseph F Woodward, Neil F Jones
Background: Glomus tumors are uncommon vascular tumors of the hand. Malignant glomus tumors, known as glomangiosarcomas, are very rare and offer management challenges. Methods: A review of the diagnosis and treatment of malignant glomus tumors is presented in along with a report of the largest malignant glomus tumor of the hand to date. Results: The review illustrates the management of glomangiosarcomas. Only 6 previous such cases have been reported. Conclusion: The rare nature of malignant glomus tumors mandates case presentation and longitudinal analysis to help guide surgical management an optimize outcomes...
September 2016: Hand: Official Journal of the American Association for Hand Surgery
Yu Fu, Xiaolin Li, Qiang Li, Haowei Wu, Chuan Xiong, Qi Geng, Honghu Sun, Qun Sun
Tuber pseudoexcavatum, Tuber sinoaestivum, and Tuber indicum are the 3 most important truffles growing in southeast China; however, their cultivation is still inefficient owing to the lack of understanding regarding the composition and function of the bacterial and fungal communities from the soils around the fruit bodies and the ectomycorrhiza of these truffles. The aim of this study was to disclose the microbial communities in truffle-producing soils in Huidong County, Sichuan, China, by using barcoded pyrosequencing...
June 27, 2016: Canadian Journal of Microbiology
Dimitrinka Y Atanasova, Nikolay D Dimitrov, Nikolai E Lazarov
The carotid body (CB) is a major peripheral arterial chemoreceptor organ that evokes compensatory reflex responses so as to maintain gas homeostasis. It is dually innervated by sensory fibers from petrosal ganglion (PG) neurons, and autonomic fibers from postganglionic sympathetic neurons of the superior cervical ganglion (SCG) and parasympathetic vasomotor fibers of intrinsic ganglion cells in the CB. The presence of nitric oxide (NO), a putative gaseous neurotransmitter substance in a number of neuronal and non-neuronal structures, was examined in the CB, PG and SCG of the rat using nicotinamide adenine dinucleotide phosphate diaphorase (NADPH-d) histochemistry, nitric oxide synthase (NOS) immunohistochemistry and retrograde tracing...
September 28, 2016: Acta Histochemica
A K Jha, R Sinha, A Kumar, P Bhadani, S Kumar
Longitudinal splitting of the nails can occur as a result of any growth arising in the nail matrix. We present a case of a 50-year-old woman who presented with an 18-month history of longitudinal splitting of the nail on her right little finger, along with pain in the proximal nail fold region, which was extremely tender to touch. Magnetic resonance imaging revealed an intensely enhancing lesion, while colour Doppler imaging revealed hypervascularity within the mass. A provisional diagnosis of glomus tumour was considered...
October 2016: Clinical and Experimental Dermatology
Lien Devuyst, Luc Defreyne, Marleen Praet, Sven Geukens, Ingeborg Dhooge
PURPOSE: The purpose of this study was to evaluate the effectiveness on function preservation and tumor control of the treatment of glomus tympanicum tumors with pre-operative embolization followed by total surgical resection. MATERIAL AND METHODS: We describe a series of 6 patients with a glomus tympanicum tumor who were treated in our hospital using the same technique: the day before surgery selective tumor embolization due to denaturation with 96% ethanol. Following parameters were considered: tumor classification, tumor control, clinical and audiological outcome, effectiveness of embolization, percentage of tumor necrosis and treatment complications...
September 7, 2016: American Journal of Otolaryngology
Y H Wu, H Y Su, Y H Zheng, C N Zheng
No abstract text is available yet for this article.
September 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Wioletta Pijacka, Fiona McBryde, Anthony P Ford, Julian F R Paton
OBJECTIVE: Arterial hypertension is associated with increases in both peripheral chemoreceptor reflex sensitivity and sympathetic nerve activity (SNA). We have shown that CB resection in SH rats reduces arterial pressure (AP; McBryde et al. 2013). Since P2X3 receptors exist in the rat CB and P2X3 receptor activity is associated with afferent hyperreflexia (Ford et al. 2015), we hypothesized that P2X3 receptor would be upregulated in the CB of SH vs normotensive (Wistar) control rats and that a selective P2X3 receptor antagonist (AF-219) would reduce chemoreflex hypersensitivity, AP and SNA in SH rats...
September 2016: Journal of Hypertension
Ayse Nur Deger, Hakki Deger, Mahir Tayfur, Mecdi Gurhan Balcioglu, Emine Kadioglu
Glomus tumours are benign lesions which are frequently seen on hand (particularly subungual region). In this report a 52-year-old male patient with glomangiomyoma on the left forearm has been presented. With a preliminary diagnosis of haemangioma, a subcutaneous well-circumscribed nodular lesion of the patient was excised. On histomorphological examination glomus cells, vascular structures and spindle-shaped smooth muscle cells were seen around it. Immunohistochemistry of smooth muscle cells and glomus cells showed positivity for smooth muscle actin...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Bharat Durgia, Anuj Jain, Shekhar Agarwal
Osteoid Osteoma is benign bone forming tumor which commonly occurs in long bones of lower limb. Presence of these rare tumors in the distal phalanx of the digits of the hand is considered a rare phenomenon. In hand, they usually present as chronic pain, swelling, nail enlargement and increase in size of digit. Diagnosis is challenging with clinical examination and usual imaging modalities and often confused with glomus tumor, enchondroma, infection, trauma and rheumatic disease. Surgical excision of the tumor, if present in hand, is the treatment of choice that aids in coming to the exact diagnosis too...
October 2016: J Hand Surg Asian Pac Vol
Rohit Singh, Akshay Malhotra, Gillian Cribb, Paul Cool, Stuart Hay
Impingement syndrome is usually caused by irritation of the rotator cuff within the sub acromial space and this includes the coraco-acromial arch (Acromion and Coraco-acromial ligament), the acromio-clavicular joint and occasionally the coracoid. Iatrogenic causes such as sutures, pins, plates or wires left from previous surgery can cause similar symptoms. We present a series of four cases mimicking "classical" impingement symptoms/signs in which the causal pathology was identified outside the sub-acromial space...
September 2016: Annals of Medicine and Surgery
Justin E Friske, Vipul Sharma, Stephanie A Kolpin, Nicholas P Webber
Glomus tumors are rare benign hamartomas arising from the neuromyoarterial glomus body, a highly specialized arteriovenous anastomosis responsible for thermoregulation. Although classically associated with a subungual location, less common extradigital glomus tumors can present a diagnostic challenge because of their rarity and nonspecific presentation. This case report adds to the literature of proven extradigital glomus tumors with documented pathologic and magnetic resonance imaging characteristics and describes their place in the differential for soft tissue mass of the wrist...
September 2016: Radiology case reports
Keiichiro Nakajo, Akimichi Chonan, Rumiko Tsuboi, Kousuke Nihei, Tomoyuki Iwaki, Hajime Yamaoka, Shun Sato, Tomomi Matsuda, Masato Nakahori, Mareyuki Endo
A 56-year-old woman who was found to have a submucosal tumor (SMT) of the stomach in a medical check-up was admitted to our hospital for a detailed investigation of the SMT. Upper gastrointestinal endoscopy revealed an SMT of 20mm at the anterior wall of the antrum of the stomach. Endoscopic ultrasonography showed a hyperechoic tumor in the fourth layer of the stomach wall. CT examination showed a strongly enhancing tumor on arterial phase images and persistent enhancement on portal venous phase images. Laparoscopy endoscopy cooperative surgery was performed with a diagnosis of SMT of the stomach highly suspicious of a glomus tumor...
September 2016: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
Annikka Weissferdt, Neda Kalhor, Cesar A Moran
Fourteen cases of primary intrathoracic glomus tumor and glomangiosarcoma are presented. The patients were 9 men and 5 women aged 36 to 63 years (mean, 49.5 years). Clinically, 11 patients presented with nonspecific symptoms including cough, hemoptysis, chest pain, and back pain while 3 patients were asymptomatic. Anatomically, 9 tumors were in an intrapulmonary location, 3 in the mediastinum, and 2 in the trachea. Surgical resection was performed in all cases, and grossly the tumors varied in size from 1...
September 3, 2016: Virchows Archiv: An International Journal of Pathology
Jessica Lunn, Jeremy Stanton, Anand Arya
Glomus tumours of the elbow remain a challenge to diagnose correctly and efficiently. We present a case of a glomus tumour as a complication of elbow surgery. This has not been described previously. This case highlights the possibility of injury as a causative factor in these tumours and the difficulty in differentiating them from postoperative neuromas by clinical presentation and ultrasound imaging alone.
July 2016: Shoulder & Elbow
Patricia Ortega-Sáenz, David Macías, Konstantin L Levitsky, José A Rodríguez-Gómez, Patricia González-Rodríguez, Victoria Bonilla-Henao, Ignacio Arias-Mayenco, José López-Barneo
KEY POINTS: Biotin, a vitamin whose main role is as a coenzyme for carboxylases, accumulates at unusually large amounts within cells of the carotid body (CB). In biotin-deficient rats biotin rapidly disappears from the blood; however, it remains at relatively high levels in CB glomus cells. The CB contains high levels of mRNA for SLC5a6, a biotin transporter, and SLC19a3, a thiamine transporter regulated by biotin. Animals with biotin deficiency exhibit pronounced metabolic lactic acidosis...
August 28, 2016: Journal of Physiology
Z S Jairajpuri, M J Hasan, G B Madan, S Jetley
Myopericytoma are uncommon, slow-growing benign perivascular neoplasms that show hemangiopericytoma-like vascular pattern. We report a 52-year-male patient with a painless palpable nodule in the left thumb for the past 9 months. The mass, on the thenar aspect, was 15x12mm in size. X-ray revealed a soft tissue swelling with no bony association. The excised nodule was a non-capsulated, well-circumscribed vascular neoplasm composed of proliferating spindle to ovoid bland cells with eosinophilic cytoplasm. A concentric perivascular arrangement of the cells was seen interspersed by thin-walled, branching, staghorn blood vessels...
August 2016: Malaysian Journal of Pathology
Zhina Fan, Gang Wu, Bing Ji, Cunfeng Wang, Shuaiwei Luo, Yinlong Liu, Jianjun Yuan
OBJECTIVE: The aim of this study was to investigate the value of color Doppler flow imaging (CDFI) in the diagnosis of glomus tumors in the extremities. METHODS: Sonography results of 62 nodules of 50 patients with glomus tumors in the extremities confirmed by surgery and pathology were analyzed retrospectively. RESULTS: The sex ratio in the group of 50 patients was (female:male) = 5.25:1. Glomus tumors were more common in women aged 30-40 years...
2016: SpringerPlus
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