Case report: A rare case of Rosai-Dorfman-Destombes disease after the COVID-19 infection.

Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is known to cause immune dysregulation and, therefore, has varied and often rare presentations. Rosai-Dorfman-Destombes disease (RDD) is an unusual non-Langerhans cell (non-LC) histiocytosis presenting with massive lymphadenopathy and various systemic symptoms. A 55-year-old Asian-American woman with no significant medical history or recent use of new drugs initially presented with cervical lymphadenopathy and urticarial rash 1 week after receiving the COVID-19 messenger RNA (mRNA) vaccine (Moderna, mRNA-1273) against SARS-CoV-2.

Cutaneous metastasis of PD-L1 positive cervical carcinoma.

•Cutaneous metastases in cervical cancer are rare and associated with a poor prognosis.•Treatment is typically palliative, utilizing chemotherapy and radiation.•We report a case of PD-L1 positive cervical cancer with cutaneous metastases that developed after initial recurrence.

Diffuse Large B-Cell Lymphoma Germinal Center B-Cell Subtype of the Thyroid.

Non-Hodgkin lymphoma is one of the most common hematological malignancies having both nodal and extranodal sites of involvement. The thyroid gland is one of the rarest primary sites. Most cases of primary thyroid lymphoma are diffuse large B-cell in nature; thus, aggressive and in extreme cases can rapidly lead to airway compromise, especially in patients who have been living with goiter for years.