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Related Concept Videos

Pulse01:16

Pulse

2.0K
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
2.0K
Pulse01:05

Pulse

3.5K
The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls...
3.5K
Muscles of the Pelvic Floor and Perineum01:26

Muscles of the Pelvic Floor and Perineum

4.5K
The muscles of the pelvic floor and perineum are crucial for supporting the pelvic organs, controlling continence, and aiding in sexual function, childbirth, and core stability. They are typically divided into the superficial perineal layer and the deep pelvic floor layer.
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
4.5K
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

1.7K
A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
1.7K
Pulse Oximetry01:24

Pulse Oximetry

1.3K
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
1.3K
Regulation of Pulse01:20

Regulation of Pulse

2.2K
Pulse regulation involves physiological mechanisms that ensure adequate blood flow throughout the body. The heartbeat, regulated by the autonomic nervous system, is influenced by hormonal balance, physical activity, and emotional state.
2.2K

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Related Experiment Video

Updated: Jan 24, 2026

Robotic Left Hepatectomy using Indocyanine Green Fluorescence Imaging for an Intrahepatic Complex Biliary Cyst
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Robotic Left Hepatectomy using Indocyanine Green Fluorescence Imaging for an Intrahepatic Complex Biliary Cyst

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Pulse granuloma presenting as a complex pelvic cyst.

Yuto Maeda1, Kazuhiko Uematsu2, Aya Matsubayashi2

  • 1Department of Obstetrics, National Center for Child Health and Development, Tokyo, Japan.

The Journal of Obstetrics and Gynaecology Research
|May 21, 2019
PubMed
Summary

Pulse granuloma, a rare benign lesion from food particles, can manifest as a recurrent pelvic mass. This case highlights its potential to mimic serious conditions like ovarian cancer.

Keywords:
acute abdomengranulomaovarian neoplasmpulse granulomatuberculosis

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Area of Science:

  • Gastroenterology
  • Pathology
  • Surgical Oncology

Background:

  • Pulse granuloma is a rare, benign granulomatous lesion typically caused by foreign body reactions to ingested food particles.
  • While usually occurring in the abdominal cavity, it has not been previously reported as a pelvic mass or a recurrent condition.

Observation:

  • A 37-year-old woman presented with abdominal pain and imaging revealed a complex pelvic cyst with disseminated nodules, raising suspicion for ovarian cancer or tuberculous peritonitis.
  • Laparotomy showed an inflammatory mass encased in adhesions, leading to a biopsy for diagnosis.

Findings:

  • Pathology confirmed the diagnosis of pulse granuloma.
  • A subsequent review of prior records indicated the previous granulomatous lesion contained vegetable matter, suggesting a recurrent or persistent foreign body reaction.

Implications:

  • This case demonstrates that pulse granuloma can present as a pelvic mass and may recur, expanding its known clinical spectrum.
  • Pulse granuloma should be considered in the differential diagnosis of complex cystic pelvic lesions with solid components, especially in patients with a history of granulomatous disease.