Related Experiment Video
Updated: Jun 22, 2026

06:15
Murine Intrapulmonary Tracheal Transplantation: A Model for Investigating Obliterative Airway Disease After Lung Transplantation
Published on: November 10, 2023
[Intravascular lymphomatosis presenting in the lung]
Rui-E Feng1, Hong-Rui Liu, Wei-Xun Zhou
1Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China. feng.ruie@yahoo.com.cn
Summary
Intravascular lymphomatosis primarily in the lung is a rare cancer. Diagnosis requires lung biopsy, as symptoms mimic pneumonia, and T-cell cases show poor prognosis.
Area of Science:
- Pulmonology
- Oncology
- Pathology
Background:
- Intravascular lymphomatosis (IVL) is a rare extranodal non-Hodgkin lymphoma.
- This study focuses on IVL presenting primarily in the lungs, excluding skin and CNS involvement.
Observation:
- A case of T-cell IVL presented with fever and pulmonary shadows.
- Review of 14 similar cases revealed predominantly older male patients.
- Common symptoms included dyspnea, cough, fever, and weight loss.
Findings:
- Pulmonary function tests often showed decreased diffusing capacity.
- Chest CT scans revealed multiple reticular or nodular densities.
- B-cell IVL had a better prognosis than T-cell IVL, with T-cell cases showing poor outcomes.
Implications:
- Pulmonary IVL presents with nonspecific symptoms, mimicking interstitial pneumonia or infection.
- Diagnosis relies on pathological confirmation via lung biopsy (transbronchial or surgical).
- Early diagnosis and appropriate treatment are crucial, especially for T-cell IVL with its poor prognosis.
Related Concept Videos
Lymphatic Vessels and Lymph Transport
Lymphatic vessels, known as lymphatics, are crucial in transporting lymph from peripheral tissues to our venous system. This process begins with lymph entering through tiny capillaries that branch through tissues. These capillaries have unique features such as larger diameters, thinner walls, and a distinctive one-way valve system formed by overlapping endothelial cells.
This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular spaces.
This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular spaces.
Secondary Lymphoid Organs
Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...

