background: molecular diversity of leishmania major and its morphological changes have become a controversial issue among researchers. some aspects of polymorphic shapes of amastigotes in clinical manifestations along with molecular variation were evaluated among suspected patients of some exceptional zoonotic cutaneous leishmaniasis locations in northern khuzestan, southwestern iran. methods: ...

To improve the accuracy of thermal characteristics analysis motorized spindle, an online correction model boundary conditions is proposed based on BP neural network (BPNN), experimental data and simulation results are used to construct BPNN correct spindle. Based co-simulation Ansys, Matlab, LabVIEW, a digital twin system for built precisely predict temperature field deformation spindle under v...

According to the situation of multi hole machining with linear circular flange flange parts, a device is analyzed and designed, which can process multiple flange holes at the same time, and the design of the device including fixture design and multi spindle box design. the three dimensional modeling and analysis software is used, make a study on the design and manufacture of the flange hole of ...

Sarcomatoid carcinoma of nasal cavity and paranasal sinuses is an extremely rare malignant neoplasm. We report a case of sarcomatoid carcinoma arising in the left-side nasal cavity and paranasal sinuses in a 65-year-old man who was hospitalized for left-side nasal epistaxis, odor sensation. Histopathologic examination revealed the tumor was composed of pleomorphic spindle and round cells with f...

Scrotal leiomyoma is a benign tumor derived from the scrotal dartos muscle; it is rare in clinical findings. The cause of the disease is not yet clear. Here, we present the case of a patient with no typical clinical features, but with some typical pathological changes. A middle-aged male patient saw a doctor for paroxysmal itching and burning of the scrotum. The physical examination revealed 3 ...

The ultrastructure of neurons and neuroglia in the cerebral and pleuro-pedal ganglia of Haliotis asinina are described. There are four types of neurons (NR1-4) and three types of neuroglia. (NG1-3). The NR1, which is the largest nerve cell, has a round nucleus with a thin rim of heterochromatin attached to the nuclear envelope. The cytoplasm contains numerous rough endoplasmic reticulum, mitoch...

Carotid body tumour (CBT) is a paraganglioma arising from the chief cells of the carotid body, which is situated at the bifurcation of the common carotid artery. We describe the fine needle aspiration cytology findings of one such tumour in a 27-year-old man. The aspirate was haemorrhagic with clusters of round to oval cells showing moderate anisokaryosis. Delicate fibrous strands with spindle ...

A disfiguring and debilitating neoplastic condition known as devil facial tumor disease (DFTD) has been discovered in wild Tasmanian Devils (Sarcophilus harrisii) across 51% of its natural range, with population declines of up to 80% in some areas (C. Hawkins, personal communication). Between 2001 and 2004, 91 cases were examined. The tumors presented as large, solid, soft tissue masses usually...

Mesenchymal chondrosarcoma (MC) is an uncommon tumor with an aggressive behaviour. We present two cases of MC. The first one is a unique case of MC of the maxilla metastasized from the clavicle. The second describes MC in the mandible with extensive involvement of the condyle. A 31-year-old male and a 22-year-old male presented to Saveetha Dental College, with a 2-month history of progressive m...

Anorectal malignant melanoma is a rare disease and has a uniformly poor prognosis. The following are two reported cases from Buddhachinaraj Hospital. A 55-year-old and a 65-year-old female patients presented with rectal bleeding. Large anorectal masses with regional lymph node involvement were detected initially. They exhibited different histological features which were atypical round cell rese...