Tuesday, July 2, 2013

Chobe National Park, Botswana - Part 1


Chobe National Park is the third largest national park in Botswana and is located in the far north of the country, sharing a border with Namibia. The park has one of the highest concentrations of game in all of Africa and the highest concentration of elephants on the continent. Between 40,000 - 60,000 elephants can be found within Chobe National Park during the peak season.

Our tour company had set us up in a game lodge called Muchenje, situated on the western edge of the Chobe River section of the park. After our transfer back to the Kasane airport from Victoria Falls, we were picked up by a driver from Muchenje and driven about an hour through the park to the game lodge. Again, the amount of game that we saw just on our transfer through the park was pretty impressive.

Elephants cross wherever they want

Male Ostrich
 Somewhere along our drive we came across a sad sight. An elephant with no apparent wounds had evidently succumbed to some disease and died near the road. There were tons of vultures perched in trees nearby or hovering overhead but were unable to feast due to the elephant's thick skin. They would need to wait for a predator to open the belly before they would be able to get at it. Our guide pointed out that the eyes were likely already pecked out.

Not napping

We caught a brief glimpse of a Roan Antelope crossing the road in front of us. This is the rarest species of antelope in the park.

Very shy
 We also saw plenty of giraffe hanging out by the side of the road.

Male and two females
Muchenje game lodge itself is a gorgeous facility. The lodge is built on a bluff overlooking the Chobe River floodplain and the view is spectacular. The rooms were well appointed and very comfortable.

Our suite at Muchenje
The view from our porch
Safari-style Becky
We were taken on a short game drive that afternoon, shortly after we arrived. 

Entrance to the pit of despair
Fungus feeding on the keratin sheath of a Cape Buffalo's horns
After the fungus has eaten away most of the keratin
Red-Billed Hornbills attacking their reflections
Whatchoo lookin at?
Namibian fisherman in a mokoro
The number of animals that comes down to the river in the early evening to drink is just astounding. I have never seen anything like it. 

Young male Waterbuck 
"Not sure if taking picture or trying to kill me"
Female Waterbuck. Seems like too much hair for Africa

Big herd of Zebra
Snuggling Zebras 
Young Zebra
Havin' a quick dirt roll
Majestic Warthog 
Female and Male Sable Antelope 
Young female Sable Antelope (and zebra and guinea fowl)
Giraffe near the lodge
Sun setting over the Chobe
So many animals

Beat up old Giraffe
Chasing Giraffes

Giraffe, giraffe, giraffe
Waterbuck males
Sun setting

Savannah Dry, a popular apple cider from South Africa
Sun finally sets
Surprise Night Giraffe!
Signing off, from Cleveland

Dermatology clinics, or "Yes, Ma'am, I've read all about this disease"

One of the benefits of being the only Dermatologist in a country of 2 million people is that all the weird skin stuff eventually makes its way to you. During any one rotation here in Botswana it's possible to see about 1/12th of every rare skin disease that exists in the entire country. So you get to see some very rare conditions, indeed. The majority of these conditions I've only read about and seen pictures of prior to his trip, but it was still gratifying to know that I could recognize them based on their description and pathology.

Kicking things off with a bang: Leprosy!

This gentleman is a refugee from the Democratic Republic of The Congo which has some of the highest rates of Leprosy in the world. While Botswana itself has fairly low rates, it is surrounded by countries that are rife with Leprosy and due it's relative political and economic stability, sees frequent refugees from these areas.




This guy fits into the WHO classification of 'multi-bacillary' leprosy and, as such, will require long-term therapy with Dapsone, Rifampin, and Clofazamine -- over a year's worth. Fortunately the Ministry of Health in Botswana has a program set up for treatment of leprosy patients and there are blister-packs available for both multi- and pauci-bacillary forms of leprosy so it is a fairly simple matter to refer them to the leprosy clinic at the MOH and get them started on the correct therapy. Unfortunately the dermatologist who initially saw him was unaware of this fact and tried to get Clofazamine through the normal hospital channels, which is nearly impossible.

As you're probably aware, Leprosy can attack the peripheral nerves and this gentleman had a palsy of the ulnar nerve on the left side which was causing him considerable distress. Hopefully now that he is on the proper treatment he will not have any further nerve damage.



Job's Syndrome

I've already mentioned the patient I saw with Hyper-IgE syndrome (Job's syndrome) in a previous post, but here is a quick update on the patient who came in for follow-up this past week.



She was started on oral Ketoconazole and Cephepime for prophylaxis and was much improved.

I saw a family of four this past week, all of them with Ichthyosis Bullosa of Siemens (Congential Bullous Ichthyosiform Erythroderma) which is caused by an autosomal dominant mutation in Keratin 2e. I doubt I would have picked up this diagnosis based on their presentation, as they didn't quite look like the pictures I had seen in texts, but 2 of the family members had been biopsied which had confirmed the diagnosis.









Pemphigus Foliaceus. Not exceedingly rare, but this is certainly the worst case I have ever seen. This patient had about 100% body-surface-area involvement and was miserable. He was sent to me from Maun, in the far Northwest of the country and the call I got originally stated that he had pemphigus vulgaris. With the referring doctors description and diagnosis of PV I was pretty worried about this guy's survival chances but, as it turns out, he mostly just extremely uncomfortable with pemphigus foliaceus.







I admitted him to the male medical ward and started him on oral steroids and antibiotics. The plan is to start Dapsone in a week after checking a G6PD screen.

Again, not exceedingly rare, but this is the worst case of Vitiligo that I have ever seen. In an area with less sun she would be a candidate for depigmentation therapy, where the patient is treated with a chemical that completely depigments the skin in order to have a consistent color. Here in Botswana that would place her at too high of a risk for skin cancer so it wasn't considered.




Worst case of Psoriasis I have ever seen. She had almost 100% body suface area involvement with some interesting verrucous changes on the legs. These pictures are after admission and three weeks of therapy with Cyclosporine. She is about 50% improved. Prior to therapy she was in so much pain that she couldn't walk. Her family carried her in suspended in a blanket. She looks pretty bad still, but she was able to walk in and feels much better.








Juvenile Dermatomyositis. This little girl had been diagnosed via biopsy.



This guy had pretty impressive Hypertrophic Lichen Planus.





You guys seem to really like my keloid pictures. This guy had even more extensive keloids than the one I posted previously. He was a former mine worker, and described getting hit with sparks all over his body which gave him tons of small burns. I gladly wrote a letter to the mining concern in an attempt to get him an increased pension. He had significant decrease mobility and was in considerable pain.




This guy was already treated, but still pretty interesting - Pellagra, or 'Casale's Necklace'. This is caused by a deficiency in Niacin.



Signing off, from Cleveland.