The lymphatic system is the part of the immune system that acts as a strategic filter and vessel with the circulatory system - providing a location for the yuck to accumulate, and allowing the body to create soldiers against the yuck.

Lymphoma occurs when there's an overwhelming accumulation in the lymph node. This can build up and cause severe infection, sepsis or can grow cancerous over time.

Non-Hodgkin Lymphoma Developed Shortly after mRNA COVID-19 Vaccination: Report of a Case and Review of the Literature - PMC
We report on a 66-year-old man who presented with a right axillary lymphadenopathy approximately 10 days after receiving the third dose of the BNT162b2 vaccine. The lymphadenopathy gradually enlarged, and physical examination and ultrasound (US)…
Rare COVID-19 vaccine side effects got lost in the shuffle. Primary cutaneous lymphomas following COVID-19 vaccination: a systematic review - PMC
COVID-19 vaccines are generally safe and effective; however, they are associated with various vaccine-induced cutaneous side effects. Several reported cases of primary cutaneous lymphomas (CLs) following the COVID-19 vaccination have raised concerns…
Two cases of axillary lymphadenopathy diagnosed as diffuse large B‐cell lymphoma developed shortly after BNT162b2 COVID‐19 vaccination - PMC

So logically, if a bunch of your cells were producing spike proteins with no off switch until they die, and by the way these spike proteins are for a non-existent but possible danger, the spike proteins could accumulate faster than the body is able to break them down and flush them out.

In a normal immune system, lymph nodes will reach a tipping point and call clean house, triggering a fever and symptoms the body will use to help clear everything out. When the immune system goes into full attack, it produces acute symptoms that usually last 7 to 14 days, sometimes 21.

The immune system is powered by your circadian rhythm and it functions in cycles of 7. But with vaccination, your immune system can't mount an acute response - by dulling the symptoms we actually disadvantage our bodies natural function.

Seven-month persistence of COVID-19 vaccine-induced lymphadenopathy: a case report - PubMed
After reviewing the history, imaging, and pathology, it was concluded through a diagnosis of exclusion that the observed enlarged left axillary lymph nodes with reactive histology were probably related to the coronavirus disease-2019 vaccine administration and not to ductal carcinoma in situ or an u …
Rapid Progression of Angioimmunoblastic T Cell Lymphoma Following BNT162b2 mRNA Vaccine Booster Shot: A Case Report - PubMed
Since nucleoside-modified mRNA vaccines strongly activate T follicular helper cells, it is important to explore the possible impact of approved SARS-CoV-2 mRNA vaccines on neoplasms affecting this cell type. Herein, we report and discuss unexpected rapid progression of lymphomatous lesions after adm …
COVID-19 vaccine-associated lymphadenopathy: a review - PubMed
Following the introduction of RNA-based vaccines, COVID-19 vaccine-associated clinical lymphadenopathy (C19-LAP) has been reported as a side effect. Moreover, subclinical lymphadenopathy detected on imaging (SLDI) has also been observed, mainly as incidental findings while performing screening tests …
Frontiers | Rapid progression of marginal zone B-cell lymphoma after COVID-19 vaccination (BNT162b2): A case report
B-cell lymphomas are neoplastic diseases occasionally associated with chronic inflammation. mRNA vaccines for coronavirus disease 2019 (COVID-19) induce infl…
Lymphadenopathy after the Anti-COVID-19 Vaccine: Multiparametric Ultrasound Findings - PubMed
<span><i>Background</i>: Post-anti-COVID-19 vaccine lymphadenopathy has recently been described in the literature. In this study, we investigated the multiparametric US findings of patients with post-vaccine lymphadenopathy and compared these findings among different anti-COVID-19 vaccines. <i>Methods</i></span> …
Seven-month persistence of COVID-19 vaccine-induced lymphadenopathy: a case report - PubMed
After reviewing the history, imaging, and pathology, it was concluded through a diagnosis of exclusion that the observed enlarged left axillary lymph nodes with reactive histology were probably related to the coronavirus disease-2019 vaccine administration and not to ductal carcinoma in situ or an u …
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