This list of autoimmune diseases is categorized by organ and tissue type to help locate diseases that may be similar. Autoimmune diseases qualifiers
Overview of the qualifiers for the list. Autoimmune diseases
Major organs
Glands
Digestive system
Tissue
Autoimmune comorbidities
This list includes conditions that are not diseases but signs common to autoimmune disease. Some, such as chronic fatigue syndrome, are controversial. These conditions are included here because they are frequently listed as autoimmune diseases but should not be included in the list above until there is more consistent evidence. Non-autoimmune
At this time, there is not sufficient evidence—direct, indirect, or circumstantial—to indicate that these diseases are caused by autoimmunity. These conditions are included here because:

The disease was listed in the prior version of this table
The disease is included in several widely used lists of autoimmune disease and is shown here to ensure that a person visiting this page does not conclude that the disease was not considered. Before moving a condition from here to the list of autoimmune diseases, references should be provided in the Wikipedia page for the condition that point to evidence, direct or indirect, that it is an autoimmune disease. See also
Autoimmune Autonomic Ganglionopathy (AAG)


== References ==
Histology
The criteria for the disease are established on the skin biopsy by the presence of the following:
Presence of cancer cells with twisted contours (cerebriform nuclei)
In the patch and plaque stages, the cancer cells are seen in the epidermis (the most superficial layer of skin). This is referred to as epidermotropism. Pautriers microabcesses, aggregates of four or more atypical lymphocytes arranged in the epidermis. Pautrier microabcesses are characteristic of mycosis fungoides but are generally absent. In the tumour stage, the cancer cells move into the dermis (the deeper layer of skin)
Large cell transformation, where clonally identical lymphocytes in the lesion exhibit hypertrophy. In transformed cells, presence of the CD30 receptor is associated with improved survivalTo stage the disease, various tests may be ordered, to assess nodes, blood and internal organs, but most patients present with disease apparently confined to the skin, as patches (flat spots) and plaques (slightly raised or wrinkled spots). Peripheral smear will often show buttock cells. Staging
Traditionally, mycosis fungoides has been divided into three stages: premycotic, mycotic and tumorous. The premycotic stage clinically presents as an erythematous (red), itchy, scaly lesion. Microscopic appearance is non-diagnostic and represented by chronic nonspecific dermatosis associated with psoriasiform changes in epidermis.In the mycotic stage, infiltrative plaques appear and biopsy shows a polymorphous inflammatory infiltrate in the dermis that contains small numbers of frankly atypical lymphoid cells. These cells may line up individually along the epidermal basal layer. The latter finding if unaccompanied by spongiosis is highly suggestive of mycosis fungoides.