Comparison of clinicopathological features and treatment outcomes for cutaneous melanomas of the head and neck and melanomas arising at other sites: Implications for systemic therapy.

Background: Melanoma is increasingly recognized as a heterogeneous disease, with conflicting evidence regarding whether cutaneous head and neck melanoma (CHNM) represents a distinct entity.

Objective: Comparison of clinicopathological features and treatment outcomes of CHNM and cutaneous melanomas of other sites (CMOS).

Methods: Patients with CHNM and CMOS diagnosed between 2000 and 2018 were included.

Spontaneous Extrusion of a Conjunctivolith Containing Herpes Virus Confirmed by Electron Microscopy and Energy Dispersive Spectroscopy.

: This report describes the spontaneous extrusion from between the eyelids of a presumed conjunctivolith in a patient with resolving severe herpes zoster ophthalmicus. A 57-year-old man presented for ophthalmologic assessment and management due to severe left herpes zoster ophthalmicus. At one subsequent ophthalmologic assessment, a conjunctivolith spontaneously egressed the lateral commissure of the OS when the lateral fornix was inspected.

Apparent Defective Abduction Without Diplopia.

Sixth nerve palsies present with horizontal diplopia and typically have a neurological or neurovascular aetiology. They can be confirmed by clinically evaluating the velocity of the abducting saccade, which is slowed. Three cases are presented in which the patients had apparent defective abduction of one eye, resulting from not only neurological causes but also orbital causes.