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Disseminate and recurrent infundibulofolliculitis, also called disseminate and recurrent infundibular folliculitis or Hitch and Lund disease, is a rare follicular skin condition that presents with irregularly shaped papules pierced by hair, is mildly itchy at times, and is chronic with recurrent exacerbations.
Strains of Fusobacterium can cause several human diseases and infections, including periodontal diseases, Lemierre's syndrome, [8] oral, head, and neck infections, as well as colorectal cancer and topical skin ulcers. [9] It has been tied [clarification needed] to HIV infection and suboptimal immune recovery. [10]
Follicular dendritic cells (FDC) are cells of the immune system found in primary and secondary lymph follicles (lymph nodes) of the B cell areas of the lymphoid tissue. [ 1 ] [ 2 ] [ 3 ] Unlike dendritic cells (DC), FDCs are not derived from the bone-marrow hematopoietic stem cell , but are of mesenchymal origin. [ 4 ]
Image at right shows influx of inflammatory cells including eosinophils and neutrophils in the dermis (solid arrow) and blister cavity (dashed arrows), and deposition of fibrin (asterisks). [15] However, the diagnosis of bullous pemphigoid consist of at least 2 positive results out of 3 criteria: [19] Pruritus and/or predominant cutaneous blisters
For years, a man from Bangladesh lived with "tree man" syndrome.. Abul Bajandar's hands and feet grew foot-long "roots" that left him unable to feed himself, move around, work or wear normal clothing.
GC B cells that are best able to present antigen to T follicular helper cells and produce the strongest B cell receptor signal are positively selected in the light zone of the germinal center. [4] Therefore, positive selection of GC B cells in the light zone results in B cells that express antibodies with high affinity for the antigen. [3]
Birt–Hogg–Dubé syndrome affects the skin and increases the risk of tumors in the kidneys and lungs. The condition is characterized by multiple noncancerous, dome-shaped tumors of the hair follicles (fibrofolliculomas), particularly on the face, neck, and more rarely, the upper chest. [2]
Doctors refer to this as a change in your stool caliber. If your stools are regularly much thinner than before, this may suggest a tumor in the colon, Inra said. Watch for other changes in your ...