melanoma

Melanoma is a serious form of skin cancer that, if not caught early, can be deadly. While Melanoma only accounts for 5% of skin cancer diagnoses, it’s responsible for 75% of skin cancer deaths. Houston dermatologist Dr. Perri first became interested in the field of dermatology when an early Melanoma diagnosis saved his father’s life. […]

If you have moles on your body and perform regular self-skin checks (which Houston dermatologist Dr. Perri recommends all his patients do), then you might be wondering, “How do I know if I have Melanoma? How can I tell the difference between a benign mole and a cancerous one?” While it’s true that Melanoma affects […]

Soft Tissue Melanoma is a rare cancer that is not commonly encountered in my The Woodlands dermatology and Conroe dermatology offices.  Also called clear cell sarcomas, Soft Tissue Melanomas are usually located below the skin attached to fascia and muscle tendons.  Clinically, Soft Tissue Melanomas appear as deep nodules underneath the skin.  The foot and ankle are the […]

Amelanotic Melanoma is a rare variant of melanoma that I occasionally encounter in both my The Woodlands dermatology and Conroe dermatology offices.  Amelanotic Melanoma “breaks the rule” of other melanomas in that it does not have clinically apparent pigment so these melanomas do not have the characteristic black, brown or blue coloration.  Thus, detection of […]

Desmoplastic Melanoma is a type of melanoma that I occasionally encounter in my The Woodlands dermatology and Conroe dermatology offices.  Clinically, a Desmoplastic Melanoma does not have the typical features seen in a classic melanoma as its histopathology differs in that it has a more scar like pattern, thus its clinical appearance may be that […]

Polypoid Melanoma is a rare subtype of melanoma that I occasionally encounter in both my The Woodlands dermatology and Conroe dermatology offices.  Polypoid Melanoma is a clinical variant of a Nodular Melanoma.  It appears as a Nodular Melanoma but has a narrow stalk at the base attaching it to the skin surface.  Although most Polypoid […]

Mucosal Melanoma is a rare type of melanoma which occurs in the mucosa of the oral cavity, vulvar region, nasal mucosa or the anal area that I occasionally encounter in both my The Woodlands dermatology and Conroe dermatology offices.  Mucosal Melanomas begin with a horizontal (radial) phase that is in situ and hasn’t become invasive.  However, due to the […]

Nodular Melanoma is a subtype of melanoma which I occasionally encounter in both my The Woodlands dermatology and Conroe dermatology offices.  Nodular Melanoma is very aggressive as it arises without a horizontal (radial phase) so it has no in situ component.  Thus, it is invasive from its inception; however, it is still of utmost importance to […]

Acral Lentiginous Melanoma is a subtype of melanoma that I encounter in both my The Woodlands dermatology and Conroe dermatology offices.  Acral Lentiginous Melanoma is the most common subtype affecting darker skinned patients and Asians and occurs at sites such as the hands, feet and nail unit.  The thumb and great toe are the most […]

Superficial Spreading Melanoma is a subtype of melanoma that I encounter in both my The Woodlands dermatology and Conroe dermatology offices.  Superficial Spreading Melanoma can occur with almost equal frequency on both sun damaged and sun protected skin.  Clinically, a Superficial Spreading Melanoma is a flat pigmented lesion that has multiple different colors throughout such […]

Lentigo Maligna is a subtype of Melanoma that I commonly encounter in both my The Woodlands dermatology and Conroe dermatology offices.  Lentigo Maligna typically occurs on sun-exposed areas such as the face.  Clinically, a Lentigo Maligna appears as a brown/black enlarging flat patch with multiple colors and irregular edges.  Fortunately, Lentigo Maligna has a prolonged […]

Melanoma is a very lethal skin cancer that I frequently encounter in both my The Woodlands dermatology and Conroe dermatology clinics.  Melanomas arise from melanocytes which are pigment producing cells that can become cancerous.  The majority of Melanomas arise from the melanocytes found at the dermoepidermal junction which is in the upper portion of the […]