Histological and ultrastructural observations on the secondary scolex and strobila of Haplobothrium globuliforme (Cestoda: Haplobothrioidea)

1985 ◽  
Vol 63 (8) ◽  
pp. 1995-2000 ◽  
Author(s):  
Barbara M. MacKinnon ◽  
Michael D. B. Burt
Keyword(s):  
Neck Region ◽  
Adhesive Organs ◽  
Apical Area ◽  
Secretory Ducts

The strobila attached to the primary scolex of Haplobothrium globuliforme fragments to produce numerous secondary scolices. These secondary scolices develop mature and gravid proglottides. The secondary scolex consists of four shallow disclike bothria which surround a raised apical area. The tegument bears small microtriches, 0.6 μm long, and the tegumental cytoplasm is filled with electron-dense discs and mitochondria. Ducts filled with electron-dense secretory bodies were seen in the scolex and occasionally were seen to fuse with the tegument. The tegument of the neck region is similar to that of the scolex. More posteriorly, the strobilar tegument bears elongated, uniform microtriches, 1.2–1.5 μm long with pronounced electron-dense tips. The anterior-most proglottides, attached to the secondary scolex, each terminate in four skirtlike appendages. The inner, posterior surfaces of these appendages bear robust, clublike microtriches or spines. Adjacent to these microtriches secretory ducts release electron-dense secretory bodies to the surface of the tegument. It is suggested that these appendages may function as accessory adhesive organs.

Six Cases of Stab Wound to the Neck Region

2020 ◽  
Vol 71 (4) ◽  
pp. 311-318
Author(s):  
Yukiomi Kushihashi ◽  
Sawa Kamimura ◽  
Shunya Egawa ◽  
Naokazu Fujii ◽  
Hitome Kobayashi ◽  
...  
Keyword(s):  
Stab Wound ◽  
Neck Region

The examination of biophysical parameters of skin (transepidermal water loss, skin hydration and pH value) in different body regions of ponies

2012 ◽  
Vol 15 (3) ◽  
pp. 553-559 ◽  
Author(s):  
M.P. Szczepanik ◽  
P.M. Wilkołek ◽  
M. Pluta ◽  
Ł.R. Adamek ◽  
Z.J.H. Pomorski
Keyword(s):  
Water Loss ◽  
Ph Value ◽  
Neck Region ◽  
Transepidermal Water Loss ◽  
Skin Hydration ◽  
Lumbar Region ◽  
Biophysical Parameters ◽  
Body Regions ◽  
Skin Ph

Abstract The purpose of this study was to evaluate transepidermal water loss, skin hydration and skin pH in normal ponies. Sixteen ponies of both sexes were examined in the study. Measurements were taken from seven different sites: the neck region, the shoulder, thorax, lumbar, inguinal, lip region and the auricle. In each of the regions transepidermal water loss (TEWL), skin hydration and skin pH were measured. For transepidermal water loss, the lowest values were observed in the lumbar region (9.71g/hm2), while the highest values were observed in the lip region (22.35 g/hm2). In the case of skin hydration the lowest values were observed for the thorax region (2.13 CU), and the highest for the lip region (41.81 CU). For skin pH, the lowest results were obtained in the lumbar region (6.93), and the highest in the lip region (7.96).

A family with pheochromocytoma-paraganglioma inherited tumour syndrome

2016 ◽  
Vol 55 (01) ◽  
pp. 34-40 ◽  
Author(s):  
P. Zschieschang ◽  
V. Prasad ◽  
D. Moskopp ◽  
B. Knie ◽  
M. Plotkin
Keyword(s):  
Early Detection ◽  
Neck Region ◽  
Hereditary Disease ◽  
Head And Neck Region ◽  
Pet Ct ◽  
Highly Sensitive ◽  
Hereditary Pheochromocytoma ◽  
Genetically Determined ◽  
Mass Lesions ◽  
Pet Ct Scan

SummaryAim: Hereditary pheochromocytoma-paraganglioma syndromes are characterized by multiple pheochromocytomas (PCC) and paragangliomas (PGLs), inherited in an autosomal dominant manner. Early detection and removal of tumours may prevent or minimize complications related to mass effects and malignant transformation. Having confirmed the diagnosis, it is important to localize the tumours and reveal their extent preoperatively. This study aimed to introduce 18F-DOPA PET/CT as a highly sensitive noninvasive diagnostic tool for early detection of mass lesions in patients with pheochromocytoma-paraganglioma inherited tumour syndrome and to report about its impact on patient management. Patients, methods: We are currently supervising one of the largest documented families in Germany with genetically determined SDHD gene mutation. We performed 18F-DOPA PET/CT in order to detect tumours in asymptomatic gene carriers and enable subsequent surgical therapy. Results: In seven patients undergoing 12 18F-DOPA PET/CT scans 17 lesions have been detected. Three of these lesions, located in the head and neck region, have had no morphologic correlate in CT and one had also no morphologic correlate in MRI. Of the six histologically analyzed lesions five have been tumors (PGL or PCC) and one has been a nodular hyperplasia. This means the 18F-DOPA PET/CT scan in our study group had a sensitivity of 83%. 18F-DOPA PET/CT investigations lead to change in the management in 5/7 studied patients (70%). Conclusion: The benefits of PET/ CT in detection of pheochromocytoma and paraganglioma are well documented, but we are the first to use this technique for screening of a rare hereditary disease (estimated prevalence 0.3/100 000).

scholarly journals Leiomyosarcoma of the Tracheostomy Site in a Patient with History of Laryngeal Squamous Cell Carcinoma

2021 ◽  
pp. 912-917
Author(s):  
Zainub Ajmal ◽  
Abdul Moiz Khan ◽  
Lezah McCarthy ◽  
Allison Lupinetti ◽  
Syed Mehdi
Keyword(s):  
Risk Factors ◽  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Head And Neck ◽  
Squamous Cell ◽  
English Literature ◽  
Neck Region ◽  
Multiple Risk Factors ◽  
History Of ◽  
Rare Malignancy

Leiomyosarcoma (LMS) of the trachea is an extremely rare malignancy with only a few reported cases in English literature. As such the diagnosis can be frequently missed or delayed. We present a case of a 69-year-old male who underwent tracheostomy for airway obstruction secondary to glottic squamous cell carcinoma and treated definitely with radiation therapy. Subsequently, the patient developed LMS of the tracheostomy site. The case further details multiple risk factors that could contribute to development of LMS including radiation exposure, prior malignancy, and chronic inflammation. These risk factors have been well established for LMS in other sites but less so in the head and neck region, which is the subject of our discussion. We also review the current guidelines for head and neck as well as limb sarcomas and discussed role of surgery or radiation and their accompanying challenges in management of this rare malignancy.

scholarly journals Rituximab Treatment in a Patient with Kimura Disease and Membranous Nephropathy: Case Report

2021 ◽  
pp. 116-123
Author(s):  
Roald Vissing-Uhre ◽  
Alastair Hansen ◽  
Susanne Frevert ◽  
Ditte Hansen
Keyword(s):  
Case Report ◽  
Membranous Nephropathy ◽  
Neck Region ◽  
Renal Diseases ◽  
Kimura’S Disease ◽  
Inflammatory Disorder ◽  
Kimura Disease ◽  
Chronic Inflammatory Disorder ◽  
Eosinophil Granulocytes ◽  
Anti Cd20

Kimura disease (KD) is a chronic, inflammatory disorder with slowly developing subcutaneous tumor-like swellings, often occurring in the head and neck region. KD is diagnosed based on histology, elevated levels of immunoglobulin type E, and increased peripheral eosinophil granulocytes. KD may coexist with glomerular renal diseases, and this case report is based on a patient with KD-associated membranous nephropathy. Patients with membranous nephropathy without KD have demonstrated responsiveness to treatment with monoclonal anti-CD20 antibodies. This case report is the first to investigate the effect of rituximab treatment in a patient with KD-associated membranous nephropathy. A 30-year-old Italian man living in Denmark was diagnosed with Kimura’s disease based on subcutaneous nodules with eosinophil angiolymphoid hyperplasia. The patient was admitted to the hospital due to nephrotic syndrome. Serology showed eosinophil granulocytosis and negative PLA2-receptor antibody. Renal biopsy showed membranous nephropathy, and the patient was treated with systemic methylprednisolone followed by cyclosporin and then cyclophosphamide with only partial remission. Ultimately, treatment with intravenous rituximab was initiated, which resulted in overall remission and no nephrotic relapses at 30 months of follow-up. Thus, intravenous rituximab effectively decreased proteinuria and prevented nephrotic relapses in a patient with treatment-refractory membranous nephropathy due to KD.

scholarly journals The effectiveness of oral propranolol for infantile hemangioma on the head and neck region: A case series

2021 ◽  
pp. 106120
Author(s):  
Prasetyanugraheni Kreshanti ◽  
Nandya Titania Putri ◽  
Valencia Jane Martin ◽  
Chaula Luthfia Sukasah
Keyword(s):  
Head And Neck ◽  
Case Series ◽  
Neck Region ◽  
Infantile Hemangioma ◽  
Head And Neck Region ◽  
Oral Propranolol
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