Cartwheel pattern

Histopathology of cartwheel pattern in dermatofibrosarcoma protuberans, annotated

Cartwheel Pattern refers to a distinctive arrangement observed in various contexts, including astronomy, biology, and medical imaging. This pattern is characterized by a central point from which features radiate outward in a manner reminiscent of the spokes of a cartwheel. The significance and implications of the cartwheel pattern vary widely depending on the field of study.

Astronomy

In astronomy, the Cartwheel Galaxy (also known as ESO 350-40) is a lenticular galaxy and a prime example of the cartwheel pattern. This galaxy underwent a dramatic transformation following a high-speed collision with a smaller galaxy. This event triggered intense star formation around the galaxy's rim, creating the appearance of a cartwheel. The central core of older stars is surrounded by a ring where new stars are being formed, with spokes of star formation connecting the core to the ring.

Biology

In biology, the cartwheel pattern can refer to the structural organization observed in certain cellular components, such as the centrioles found in animal cells. Centrioles are crucial for the process of cell division, and their microtubules are arranged in a way that resembles a cartwheel. This structure is essential for the proper segregation of chromosomes during cell division.

Medical Imaging

In medical imaging, particularly in radiology and ultrasound, a cartwheel pattern may be observed in the imaging of certain types of tumors or lesions. For example, in musculoskeletal imaging, a cartwheel pattern can indicate the presence of a specific type of benign bone tumor known as an osteochondroma. Similarly, in the imaging of soft tissue tumors, this pattern might suggest specific diagnoses based on the arrangement of tumor cells or fibrous tissues.

Pathology

In pathology, the cartwheel pattern is often associated with the histological appearance of certain types of tumors, such as sarcomas. The pattern describes the arrangement of cells or fibers in a radial fashion, emanating from a central point, which can be indicative of the tumor's growth pattern and might have diagnostic significance.

Conclusion

The cartwheel pattern is a fascinating phenomenon that crosses the boundaries of several scientific disciplines. Its presence can signal important processes, from the cosmic scale of galaxy formation to the microscopic scale of cellular organization. Understanding the implications of this pattern can provide valuable insights into the underlying mechanisms of galaxy evolution, cellular function, and disease pathology.

Cartwheel pattern Resources
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