Reverse Koebnerization in a linear oral lichenoid lesion: A case report

Spontaneous eruptive disseminated lobular capillary haemangioma

Lobular capillary haemangioma (LCH), previously known as pyogenic granuloma, is a benign vascular tumour of the skin or mucosa. We report a patient with spontaneous eruption of LCH, a rare occurrence, which resolved probably due to reverse koebnerisation.

Psoriasis, Is It a Microdamage of Our "Sixth Sense"? A Neurocentric View

Psoriasis is considered a multifactorial and heterogeneous systemic disease with many underlying pathologic mechanisms having been elucidated; however, the pathomechanism is far from entirely known. This opinion article will demonstrate the potential relevance of the somatosensory Piezo2 microinjury-induced quad-phasic non-contact injury model in psoriasis through a multidisciplinary approach. The primary injury is suggested to be on the Piezo2-containing somatosensory afferent terminals in the Merkel cell−neurite complex, with the concomitant impairment of glutamate vesicular release machinery in Merkel cells. Part of the theory is that the Merkel cell−neurite complex contributes to proprioception; hence, to the stretch of the skin. Piezo2 channelopathy could result in the imbalanced control of Piezo1 on keratinocytes in a clustered manner, leading to dysregulated keratinocyte proliferation and differentiation. Furthermore, the author proposes the role of mtHsp70 leakage from damaged mitochondria through somatosensory terminals in the initiation of autoimmune and autoinflammatory processes in psoriasis. The secondary phase is harsher epidermal tissue damage due to the primary impaired proprioception. The third injury phase refers to re-injury and sensitization with the derailment of healing to a state when part of the wound healing is permanently kept alive due to genetical predisposition and environmental risk factors. Finally, the quadric damage phase is associated with the aging process and associated inflammaging. In summary, this opinion piece postulates that the primary microinjury of our “sixth sense”, or the Piezo2 channelopathy of the somatosensory terminals contributing to proprioception, could be the principal gateway to pathology due to the encroachment of our preprogrammed genetic encoding.

A Holistic Intervention for Oral Lichen Planus

Oral lichen planus (OLP) is a chronic immune-mediated, inflammatory, and psychosomatic condition that frequently affects the oral mucosa in a typical bilateral pattern, often noticed in middle-aged females.1 It involves the buccal, lingual, and/or gingival mucosa and is also an oral potentially malignant disorder (OPMD). OLP is associated with etiological factors ranging from viruses like hepatitis C, systemic factors like thyroid disorders,2 local factors like dental plaque, calculus and cuspal trauma, to deep rooted, often underestimated, psychological triggers. OLP is routinely encountered in oral medicine clinics and is sometimes accompanied by the simultaneous involvement of skin, nails, genitals, and/or mucous membranes. Although OLP is multifactorial in origin, a large share of these presentations can be attributed chiefly to psychological factors like stress, anxiety, and depression. OLP is even more striking as its genesis, progression, and exacerbation closely mirror the dynamics of emotional disturbance.