Cutaneous columnar cyst

Cutaneous Columnar Cyst

File:Cutaneous columnar cyst.jpg

Micrograph of a cutaneous columnar cyst, H&E stain.

A Cutaneous columnar cyst is a rare type of skin cyst that is characterized by its unique histological features. It was first described in the medical literature in 2009 by Kazakov, Michal, and Kacerovska.

Clinical Presentation

Cutaneous columnar cysts typically present as solitary, asymptomatic, slow-growing nodules. They are most commonly found on the face, particularly on the lower eyelid. However, they can also occur on other parts of the body, such as the neck and trunk.

Histopathology

Histologically, cutaneous columnar cysts are characterized by a cystic lesion lined by a single layer of columnar epithelium. The epithelial cells have a pale eosinophilic cytoplasm and basally located nuclei. The cyst wall is composed of fibrous tissue and may contain smooth muscle fibers.

Diagnosis

The diagnosis of a cutaneous columnar cyst is primarily based on its histopathological features. Other skin cysts, such as epidermoid cysts and trichilemmal cysts, may need to be ruled out.

Treatment

The treatment of choice for cutaneous columnar cysts is surgical excision. This is usually curative, and recurrence is rare.

Epidemiology

Cutaneous columnar cysts are rare, with only a few cases reported in the medical literature. They can occur in individuals of any age, but are most commonly seen in adults. There is no known gender or racial predilection.