Acanthoma fissuratum

Signs and symptoms

In its classic form, it manifests as a single, hard, folded coin-shaped lesion, flesh-colored papule, nodule, or plaque that has a central groove that splits it in half (a look similar to a coffee bean). The retroauricular sulcus, superior auricular sulcus, and the lateral portion of the nose bridge at the inner canthus are common sites for acanthoma fissuratum affecting the ear when it occurs in people wearing poorly fitting spectacle frames. Nonetheless, there have also been reports of involvement at other locations, including the penis, outer auditory canal, and posterior forchette of the vulva.

Causes

The lesions develop as a result of various factors, including improperly fitting eyeglass frames, the weight of the spectacles, concurrent skin diseases, and deformities in the anatomy.

Diagnosis

Acanthosis, hyperkeratosis, and varied parakeratosis are seen in the histopathology. The longitudinal groove, which is matched by central attenuation in the epidermis, may be filled with keratinous debris or inflammatory cells. Variable perivascular nonspecific chronic inflammatory infiltration is seen in the dermis.

Treatment

The mainstay of treatment for acanthoma fissuratum consists of removing the persistently irritating stimuli, which typically causes the lesion to reverse. In severe situations, further techniques like electrosurgery, intralesional corticosteroids, and surgical excision may be employed.

References

References

1. Rapini, Ronald P.. (2007). "Dermatology: 2-Volume Set". Mosby.
2. Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). McGraw-Hill. {{ISBN. 0-07-138076-0.
3. EPSTEIN, ERVIN. (1965-06-01). "Granuloma Fissuratum of the Ears". American Medical Association (AMA).
4. (2017). "Acanthoma fissuratum: Lest we forget". Medknow.
5. (2011-09-14). "Acanthoma fissuratum on the penis". Wiley.
6. (October 1989). "Acanthoma fissuratum of the outer auditory canal from a hearing aid.". Journal of Cutaneous Pathology.
7. (2005). "Vulvar Granuloma Fissuratum: A Description of Fissuring of the Posterior Fourchette and the Repair". Ovid Technologies (Wolters Kluwer Health).