Lymphomatoid papulosis

Some patients with disease confined to the skin have a different and more indolent disorder that has been termed cutaneous anaplastic large T/null cell lymphoma and might be related to lymphomatoid papulosis.

Wegener's granulomatosis must also be differentiated from lymphomatoid granulomatosis, the latter also being a part of the spectrum of AIL. Lymphomatoid granulomatosis is characterized by lung, skin, central nervous system, and kidney involvement in which atypical lymphocytoid and plasmacytoid cells infiltrate tissue in an angioinvasive manner.

Lymphomatoid Granulomatosis - This multisystem disorder of unknown etiology is an angiocentric malignant lymphoma characterized by a polymorphic lymphoid infiltrate, an angiitis, and granulomatosis.

Although it may affect virtually any organ, it is most frequently characterized by pulmonary, skin, and central nervous system involvement.

Amyloidosis
Connective tissue naevi
Dermatofibroma
Dermatofibrosarcoma protuberans
Ehler's Danlos syndrome
Elastosis perforans serpiginosa
Keloids & hypertrophic scars
Lipodystrophy
Lipoma
Mastocytoma
Neurofibroma
Pseudoxanthoma elasticum
Reactive perforating collagenosis
Striae (stretch marks)
Eosinophilic fasciitis
Erythema multiforme
Histiocytoses
Jessner's lymphocytic infiltrate
Langerhans cell histiocytosis
Lymphocytoma cutis
Lymphomatoid papulosis
Mastocytosis
Morphoea
Non-Langerhans cell histiocytosis
Panniculitis
Reticulohistiocytosis
Sweet's disease
Systemic sclerosis
Atypical mycobacterial infection
Granuloma faciale
Granuloma annulare
Cutaneous tuberculosis
Leprosy
Pyogenic granuloma
Sarcoidosis